Pulsars in globular clusters

The tables below list all globular clusters with known pulsars and all the pulsars in them (see ASCII version of the latter). We give relevant references on each pulsar whenever they are available, please cite these if possible. At the bottom, we also list the history of changes to this page. We hope you find these tables useful! If you do, please footnote the URL in your paper. Thanks!

Related sites:

The ATNF pulsar catalogue
Harris globular cluster catalog (globular cluster parameters below are from this catalog, which has precedence in case of any differences).
Baumgardt's list of fundamental globular cluster parameters.
Pulsars discovered by the Transients and Pulsars with MeerKAT (TRAPUM) surveys.
The FAST globular cluster survey.
The 47 Tuc Pulsars Homepage.
Latest changes to this page.

Cluster Name Click for its pulsar list.	Core radius (arcmin)	Half-light radius (arcmin)	Galactic longitude, l (deg)	Galactic latitude, b (deg)	Distance (kpc)	Number of pulsars	Number of binary pulsars
Fig. 1: Histogram of globular cluster pulsars per cluster. Two pulsars (M3C and NGC 6749B) are likely real but need confirmation. Credit: Alessandro Ridolfi.
47 Tucanae (NGC 104)	0.36	3.17	305.90	−44.89	4.5	29	19
NGC 362	0.18	0.82	301.53	−46.25	8.6	9	7
NGC 1851	0.09	0.51	244.51	−35.03	12.1	15	9
M53 (NGC 5024)	0.35	1.31	332.96	79.76	17.9	5	4
ω Centauri (NGC 5139)	2.37	5.00	309.10	14.97	5.2	18	8
M3 (NGC 5272)	0.37	2.31	42.22	78.71	10.2	> 5	> 5
M5 (NGC 5904)	0.44	1.77	3.86	46.80	7.5	7	6
NGC 5986	0.47	0.98	337.02	13.27	10.4	1	1
M4 (NGC 6121)	1.16	4.33	350.97	15.97	2.2	1	1
M13 (NGC 6205)	0.62	1.69	59.01	40.91	7.1	6	4
M12 (NGC 6218)	0.79	1.77	15.72	26.31	4.8	2	2
M10 (NGC 6254)	0.77	1.95	15.14	23.08	4.4	2	> 1
M62 (NGC 6266)	0.22	0.92	353.57	7.32	6.8	9	9
M92 (NGC 6341)	0.26	1.02	68.34	34.86	8.3	1	1
NGC 6342	0.05	0.73	4.90	9.72	8.5	2	1
Terzan 1	0.04	3.82	357.57	1.00	6.7	7	0
M14 (NGC 6402)	0.79	1.30	21.32	14.81	9.3	5	5
NGC 6397	0.05	2.90	338.17	−11.96	2.3	2	2
Terzan 5	0.16	0.72	3.84	1.69	6.9	48	28
NGC 6440	0.14	0.48	7.73	3.80	8.5	8	4
NGC 6441	0.13	0.57	353.53	−5.01	11.6	9	3
NGC 6517	0.06	0.50	19.23	6.76	10.6	17	> 2
NGC 6522	0.05	1.00	1.02	−3.93	7.7	6	0
NGC 6539	0.38	1.70	20.80	6.78	7.8	1	1
NGC 6544	0.05	1.21	5.84	−2.20	3.0	3	3
NGC 6624	0.06	0.82	2.79	−7.91	7.9	12	2
M28 (NGC 6626)	0.24	1.97	7.80	−5.58	5.5	14	10
NGC 6652	0.10	0.48	1.53	−11.38	10.0	2	2
M22 (NGC 6656)	1.33	3.36	9.89	−7.55	3.2	4	2
Glimpse C-01	0.59	0.65	31.31	−0.10	4.2	1	1
NGC 6712	0.76	1.33	25.35	−4.32	6.9	1	1
NGC 6749	0.62	1.10	36.20	−2.21	7.9	> 1	> 1
NGC 6752	0.17	1.91	336.49	−25.63	4.0	9	1
NGC 6760	0.34	1.27	36.11	−3.92	7.4	2	1
M71 (NGC 6838)	0.63	1.67	56.75	−4.56	4.0	5	5
M15 (NGC 7078)	0.14	1.00	65.01	−27.31	10.4	9	1
M2 (NGC 7089)	0.32	1.06	53.37	−35.77	11.5	6	6
M30 (NGC 7099)	0.06	1.03	27.18	−46.84	8.1	2	2

Pulsars in 47 Tucanae (NGC 104)	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
Pulsar table
J0023−7204C	1.21	5.75678	−4.9850(6)	24.599(2)	i	i	i	i		mlj+90,rlm+95,frk+17
J0024−7204D	0.68	5.35757	−0.3429(7)	24.729(2)	i	i	i	i		mlr+91,rlm+95,frk+17
J0024−7205E	0.65	3.53633	+9.8510(6)	24.230(2)	2.25684	1.9818423(8)	0.0003152(9)	0.18		mlr+91,rlm+95,fcl+01,frk+17
J0024−7204F	0.19	2.62358	+6.4500(4)	24.379(5)	i	i	i	i		mlr+91,fcl+01,frk+17,bhc+17
J0024−7204G	0.29	4.04038	−4.215(2)	24.441(5)	i	i	i	i		mlr+91,fcl+01,frk+17
J0024−7204H	0.77	3.21034	−0.183(1)	24.36(3)	2.35770	2.152813(3)	0.070560(3)	0.19 (i)	mildly eccentric	mlr+91,fcl+01,fck+03,frk+17
J0024−7204I	0.29	3.48499	−4.587(2)	24.42(2)	0.22979	0.038447(2)	< 0.0004	0.015	black widow	mlr+91,rlm+95,fcl+01,frk+17
J0023−7203J	1.00	2.10063	−0.97922(9)	24.5848(9)	0.12066	0.0404022(2)	< 0.00004	0.024	eclipsing black widow	mlr+91,rlm+95,clf+00,fck+03,frk+17
J0024−7204L	0.14	4.34617	−12.206(4)	24.38(5)	i	i	i	i		mlr+91,fcl+01,frk+17
J0023−7205M	1.05	3.67664	−3.844(3)	24.42(2)	i	i	i	i		mlr+91,fcl+01,frk+17
J0024−7204N	0.49	3.05395	−2.1870(9)	24.57(2)	i	i	i	i		rlm+95,fcl+01,frk+17
J0024−7204O	0.06	2.64334	+3.0354(9)	24.363(10)	0.13597	0.045151(2)	< 0.00016	0.025	eclipsing black widow	clf+00,fcl+01,fck+03,frk+17
J0024−7204P	*	3.64302	*	24.3	0.14725	0.038008(4)	0.0	0.02	black widow	clf+00,rft+16
J0024−7204Q	0.98	4.03318	+3.402(2)	24.29(2)	1.18908	1.462209(4)	0.000085(5)	0.21		clf+00,fcl+01,rbh+15,cpf+15,frk+17
J0024−7204R	0.15	3.48046	+14.8371(3)	24.4	0.06623	0.03363(1)	0.0	0.030	eclipsing black widow	clf+00,frk+17
J0024−7204S	0.19	2.83041	−12.054(2)	24.353(9)	1.20172	0.766270(3)	0.000394(7)	0.10		clf+00,fkl01,fck+03,rbh+15,cpf+15,frk+17,bhc+17
J0024−7204T	0.34	7.58848	+29.37(1)	24.39(6)	1.12618	1.33850(2)	0.00040(2)	0.20		clf+00,fkl01,fcl+01,rbh+15,cpf+15,frk+17
J0024−7203U	0.94	4.34283	+9.523(1)	24.335(4)	0.42911	0.526950(1)	0.000149(4)	0.14		clf+00,fcl+01,egh+01,rbh+15,cpf+15,frk+17
J0024−7204V	*	4.81017	*	24.105	0.21213	0.74191(20	0.0	0.35	eclipsing redback	clf+00,rft+16
J0024−7204W	0.08	2.35234	−8.6553	24.3	0.1330	0.2435	0.0	0.14	eclipsing redback	clf+00,egc+02,bgb05,rft+16,hhk+20
J0024−7201X	3.83	4.77152	+1.83609	24.539(5)	10.92118	11.91706	0.0000005(2)	0.42	distant from centre	lcf+03,rft+16
J0024−7204Y	0.37	2.19666	−3.51720(8)	24.468(4)	0.52194	0.6685967(7)	0.000003(3)	0.16		lcf+03,rbh+15,cpf+15,frk+17
J0024−7205Z	0.15	4.55445	−0.456(1)	24.45(4)	i	i	i	i		frk+17,bhc+17
J0024−7205aa	0.47	3.69076	−9.1780(30)	24.941(7)	i	i	i	i		phl+16, fr18, bhc+17
J0024−7204ab	0.21	3.70464	0.9844(3)	24.37(2)	i	i	i	i		phl+16,frk+17,bhc+17
J0024−7204ac	*	2.74	*	24.46	0.1793	0.0195	0	0.0089	eclipsing black widow	rgf+21
J0024−7204ad	*	3.74	*	24.41	0.3184	0.6819	0	0.235	eclipsing redback	rgf+21
J0024−7204ae	*	3.87	*	24.3	*	*	*	*	binary	(g: MeerKAT, TRAPUM project)
J0024−7204af	*	2.9978	*	24.21	*	*	*	*	binary	(g: MeerKAT, TRAPUM project)
Pulsars in NGC 362	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
J0103−7050A	*	4.969	*	25.2	*	*	*	*	binary	(g: Found in archival Parkes data)
J0103−7050B	*	2.245	*	25.6	*	*	*	*	binary	(g: Found in archival Parkes data)
J0103−7050C	*	7.354	*	25.0	*	*	*	*	binary	(g: MeerKAT, TRAPUM project)
J0103−7050D	*	3.438	*	24.6	*	*	*	*	binary	(g: MeerKAT, TRAPUM project)
J0103−7050E	*	104.43	*	24.5	i	i	i	i	slow	(g: MeerKAT, TRAPUM project)
J0103−7050F	*	34.81	*	24.6	*	*	*	*	binary	(g: MeerKAT, TRAPUM project)
J0103−7050G	*	4.45	*	24.6	i	i	i	i		(g: MeerKAT, TRAPUM project)
J0103−7050H	*	7.96	*	24.8	*	*	*	*	binary	(g: MeerKAT, TRAPUM project)
J0103−7050I	*	2.78	*	24.7	*	*	*	*	binary	(g: MeerKAT, TRAPUM project)
Pulsars in NGC 1851	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
J0514−4002A	0.08	4.99058	+0.117(14)	52.14016(37)	18.78518	36.29028(27)	0.8879771(11)	1.1 (ii)	eccentric, massive, exchange product	fgri04, frg07, rfgr19
J0514−4002B	*	2.8163	*	52.076	i	i	i	i		rfg+22
J0514−4002C	*	5.5648	*	52.053	i	i	i	i		rfg+22
J0514−4002D	*	4.5542	*	52.219	5.686	9.800	0.862	0.56	eccentric, massive, likely exchange product	rfg+22
J0514−4002E	*	5.5959	*	51.930	7.448	27.826	0.708	1.89	eccentric, massive, exchange product	rfg+22
J0514−4002F	*	4.3294	*	51.620	4.313	4.073	0	0.25		rfg+22
J0514−4002G	*	3.8028	*	50.959	2.636	1.997	0	0.16		rfg+22
J0514−4002H	*	5.5061	*	52.226	16.994	12.805	0.020	0.14		rfg+22
J0514−4002I	*	32.6542	*	52.58	0.985	1.090	0.0098	0.17		rfg+22
J0514−4002J	*	6.6329	*	52.017	i	i	i	i		rfg+22
J0514−4002K	*	4.6920	*	51.928	i	i	i	i		rfg+22
J0514−4002L	*	2.9588	*	51.245	1.141	1.326	0	0.19		rfg+22
J0514−4002M	*	4.7978	*	51.678	i	i	i	i		rfg+22
J0514−4002N	*	5.5679	*	51.068	i	i	i	i		rfg+22
J0514−4002O	*	3.076	*	52.05	*	*	*	*	binary	(g: MeerKAT, TRAPUM project)
Pulsars in M53 (NGC 5024)	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
B1310+18(A)	*	33.1632	*	24.0(1.5)	255.8(6)	84.2(7)	0.01	0.35	long orbit	kapw91
J1312+1810B	*	6.24	*	25.965	47.6733	22.6169	0.0113	0.28		pqm+21
J1312+1810C	*	12.53	−518	26.106	i	i	i	i		pqm+21
J1312+1810D	*	6.07	*	24.6	5.7502	5.9144	0	0.30		pqm+21
J1312+1810E	*	3.97	70.5	25.88	2.4314	2.3717	0	0.21		(g: FAST)
Pulsars in ω Centauri (NGC 5139)	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
J1326−4728A	*	4.10879	2.738(2)	100.2899(7)	i	i	i	i		djk+20, zh22, djk+23
J1326−4728B	*	4.79187	−5.433(4)	100.250(1)	0.08961	0.02145	0.0	0.0156	eclipsing black widow	djk+20, djk+23
J1326−4728C	*	6.86786	0.98(1)	100.640(5)	i	i	i	i		djk+20, djk+23
J1326−4728D	*	4.57883	−4.110(4)	96.518(2)	i	i	i	i		djk+20, djk+23
J1326−4728E	*	4.20772	1.628(1)	94.3690(4)	i	i	i	i		djk+20, djk+23
J1326−4728F	*	2.273	*	98.29	i	i	i	i		cfr+23
J1326−4728G	*	3.304	*	99.69	0.10876	0.03220	0	0.021	black widow	cfr+23
J1326−4728H	*	2.5203	*	98.09	0.13569	0.02184	0	0.012	black widow	cfr+23
J1326−4728I	*	18.95	*	102.22	1.113	0.165	0	0.022	black widow, preliminary binary parameters	cfr+23
J1326−4728J	*	3.686	*	97.282	i	i	i	i		cfr+23
J1326−4728K	*	4.715	*	94.73	0.09387	0.0679	0	0.049	black widow	cfr+23
J1326−4728L	*	3.536	*	101.48	0.15893	0.06181	0	0.031	black widow	cfr+23
J1326−4728M	*	4.603	*	101.426	i	i	i	i		cfr+23
J1326−4728N	*	6.884	*	101.2	1.0816	0.1250	0	0.017	black widow, preliminary binary parameters	cfr+23
J1326−4728O	*	6.159	*	94.266	i	i	i	i		cfr+23
J1326−4728P	*	2.79	*	102.1	i	i	i	i		cfr+23
J1326−4728Q	*	4.130	*	95.92	1.18	1.1	0	0.15	preliminary binary parameters	cfr+23
J1326−4728R	*	10.29	*	102.1	i	i	i	i		cfr+23
Pulsars in M3 (NGC 5272)	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
J1342+2822A	*	2.54474	−1.04	26.5	0.1359	0.0256	0	0.0125	black widow	hrs+07, pqm+21, pqm+21
J1342+2822B	0.14	2.389	+1.858	26.148(2)	1.41735	1.875655(2)	0.0	0.21		hrs+07, cfi+19, qp21
J1342+2822C	*	2.166	*	26.5	*	*	*	*	needs confirmation	hrs+07
J1342+2822D	0.23(12)	5.443	*	26.34(2)	128.752(5)	38.524(4)	0.0753(5)	0.21	long orbit, mildly eccentric	hrs+07
J1342+2822E	*	5.47	−0.116	26.541	7.0968	5.3392	0.0	0.23		pqm+21,FAST
J1342+2822F	*	4.40	3.18	26.467	2.9920	2.2259	0	0.17		pqm+21, qp21,FAST
Pulsars in M5 (NGC 5904)	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
B1516+02A	0.50	5.55359	+4.122(6)	30.08(5)	i	i	i	i		awkp97, fwbh08
B1516+02B	0.30	7.94694	−0.3306(12)	29.45(3)	6.85845	3.04856	0.137849(12)	0.13 (iii)	mildly eccentric	awkp97, fwbh08
J1518+0204C	0.125	2.48393	+2.6055(12)	29.3146	0.086829	0.057320	0.0	0.038	eclipsing black widow	hrs+07, prf+14
J1518+0204D	*	2.988	*	29.3	1.22	1.60	0.0	0.20		hrs+07
J1518+0204E	*	3.182	*	29.3	1.10	1.15	0.0	0.15		hrs+07
J1518+0204F	*	2.65	*	29.4	1.6095	1.953	0.0	0.23		pqm+21
J1518+0204G	*	2.75	*	29.4	*	*	*	*		(g: FAST, CRAFTS)
Pulsars in NGC 5986	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
J1546−3747A	*	2.60567	*	92.17	1.34671	1.3833	0.0	0.18		lr11
Pulsars in M4 (NGC 6121)	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
B1620−26	0.767	11.0758	−5.4693(3)	62.8633(5)	191.44281	64.809460(4)	0.02531545(12)	0.33	long orbit, triple system with planet	lbb+88,ml88,tat+93,tacl99,srh+03
Pulsars in M13 (NGC 6205)	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
B1639+36A	0.350	10.37750	−0.73(3)	30.4386(5)	i	i	i	i		kapw91, wps+20, zzh21
B1639+36B	1.626	3.52807	−0.01(1)	29.4456(6)	1.25911	1.388545(1)	0.000002(1)	0.186		and92, wps+20, zzh21
J1641+3627C	0.548	3.72208	0.123(6)	30.1320(2)	i	i	i	i		hrs+07, wps+20, zzh21
J1641+3627D	0.262	3.11829	−2.36(1)	30.451(3)	0.59144	0.92432	0.0005730(6)	0.208		hrs+07, wps+20, zzh21
J1641+3627E	0.158	2.48698	1.75(2)	30.54(2)	0.11262	0.035869(1)	0.00012(5)	0.022	black widow, eclipsing	hrs+07, wps+20, zzh21
J1641+3627F	0.956	3.00350	1.40(6)	30.366(4)	1.37800	1.251702(3)	0.0	0.157		wps+20, ccp+20, zzh21
Pulsars in M12 (NGC 6218)	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
J1647−0156A	*	2.36	*	42.5	*	*	*	*	binary	(g: FAST)
J1647−0156B	*	2.76	*	42.7	*	*	*	*	binary	(g: FAST)
Pulsars in M10 (NGC 6254)	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
J1657−0406A	*	4.73	*	43.9	*	*	*	*		pqm+21
J1657−0406B	*	7.35	*	43.355	*	*	*	*		pqm+21
Pulsars in M62 (NGC 6266)	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
J1701−3006A	0.32	5.24157	−13.196(9)	115.03(4)	3.80595	3.483724(8)	0.000004	0.23		dlm+01,pdm+03, lfrj12
J1701−3006B	0.028	3.59385	−34.978(7)	113.44(4)	0.14455	0.252775(13)	<0.00007	0.14	eclipsing redback	pdm+03, lfrj12
J1701−3006C	0.175	7.61285	−6.378(22)	114.56(7)	0.21500	0.192880(12)	< 0.00006	0.08	P, Pdot twice published	pdm+03, lfrj12
J1701−3006D	0.200	3.41777	12.57(24)	114.224(11)	1.11790	0.9880	0.00045(2)	0.14		lfrj12
J1701−3006E	0.111	3.23374	31.03(27)	113.79(2)	0.15848	0.07016	0.0	0.035	eclipsing black widow	lfrj12
J1701−3006F	0.041	2.294727	22.21(18)	113.29(3)	0.20549	0.0573	0.0	0.024	black widow	lfrj12
J1701−3006G	*	4.60810	*	113.679(7)	0.77443	0.62031	0.000907(28)	0.112		rgf+21
J1701−3006H	*	3.704	*	114.76	*	*	*	*	binary	(g: MeerKAT, TRAPUM project)
J1701−3006I	*	3.29	*	113.3	*	*	*	*	binary	(g: MeerKAT, TRAPUM project)
Pulsars in M92 (NGC 6341)	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
J1717+4308A	*	3.15972	6.1131	35.45	0.20087	0.398703(2)	-	0.18	eclipsing redback	prl+20, qp21
Pulsars in NGC 6342	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
B1718−19(A)	2.3	1004.04	+1.59(2)×10⁻¹⁵	71.0(2)	0.25827	0.3526(8)	< 0.005	0.13	eclipsing, slow, young, distant from centre	lbhb93,kkk+00
J1721−1936B	*	2.56828	*	71.4	i	i	i	i		(g: MeerKAT, TRAPUM project)
Pulsars in Terzan 1	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
J1735−3028A	*	113.695	*	382.36	i	i	i	i	slow	(g: GBT)
J1735−3028B	*	11.1366	*	380.56	i	i	i	i		(g: GBT)
J1735−3028C	*	6.03882	*	378.99	i	i	i	i		(g: GBT)
J1735−3028D	*	5.38637	*	380.16	i	i	i	i		(g: GBT)
J1735−3028E	*	3.07837	*	378.70	i	i	i	i		(g: GBT)
J1735−3028F	*	5.21377	*	382.00	i	i	i	i		(g: GBT)
J1735−3028G	*	3.91788	*	382.00	i	i	i	i		(g: GBT)
Pulsars in M14 (NGC 6402)	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
J1737−0314A	*	1.97998	9.53	82.10	0.2278	0.0471	0	0.018	black widow	pqm+21
J1737−0314B	*	8.52	*	81.0	*	*	*	*	binary	pqm+21
J1737−0314C	*	8.46	*	80.0	*	*	*	*	binary	pqm+21
J1737−0314D	*	2.89	*	78.8	0.7428	0.7548	0	0.142	eclipsing redback	pqm+21
J1737−0314E	*	2.28	*	80.4	0.8463	1.1018	0	0.195	eclipsing redback	pqm+21
Pulsars in NGC 6397	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
J1740−5340(A)	0.917	3.65033	+16.8(7)	71.8(2)	1.35406	1.65284(7)	< 0.0001	0.22 (iv)	eclipsing redback, distant from centre	dlm+01,dpm+01,fpds01
J1740−5340B	*	5.78697	−0.6(3)	72.2	1.97726	2.58020	0	0.27	eclipsing redback	zrb+22
Pulsars in Terzan 5	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
J1748−2446A	0.602	11.5632	−2.9	242.1(2)	0.075646	0.11971(3)	0.0	0.10	eclipsing redback	ljm+90,lmbm00,nat00,prf+17,bbh+20,mrd+22
J1748−2446C	0.179	8.43610	−60.6(4)	237(1)	i	i	i	i		lmbm00,prf+17,bbh+20,mrd+22
J1748−2446D	0.693	4.71398	13.0	243.83	i	i	i	i		ran01,rhs+05,prf+17,bbh+20,mrd+22
J1748−2446E	0.361	2.19780	−1.8	236.84	60.06	23.6	0.02	0.25	long orbit	rhs+05,prf+17,bbh+20,mrd+22
J1748−2446F	0.125	5.54014	0.4	239.18	i	i	i	i		rhs+05,prf+17,bbh+20,mrd+22
J1748−2446G	0.185	21.6719	39.0	237.57	i	i	i	i		rhs+05,prf+17,mrd+22
J1748−2446H	0.227	4.92589	−8.3	238.13	i	i	i	i		rhs+05,prf+17,bbh+20,mrd+22
J1748−2446I	0.030	9.57019	−7.1	238.73	1.328	1.818	0.428	0.24 (v)	eccentric	rhs+05,prf+17,mrd+22
J1748−2446J	0.948	80.3379	250.0	234.35	1.102	2.454	0.350	0.39 (vi)	eccentric	rhs+05,prf+17,bbh+20,mrd+22
J1748−2446K	0.220	2.96965	−9.4	234.81	i	i	i	i		rhs+05,prf+17,bbh+20,mrd+22
J1748−2446L	0.149	2.24470	−1.7	237.74	i	i	i	i		rhs+05,prf+17,bbh+20,mrd+22
J1748−2446M	0.083	3.56957	49	238.65	0.4431	0.596	0	0.16		rhs+05,prf+17,mrd+22
J1748−2446N	0.154	8.66690	55	238.47	0.3855	1.619	0.000045	0.56		rhs+05,prf+17,bbh+20,mrd+22
J1748−2446O	0.119	1.67663	−6.9	236.38	0.2595	0.112	0	0.04	eclipsing black widow	rhs+05,prf+17,bbh+20,mrd+22
J1748−2446P	0.069	1.72862	26	238.79	0.3626	1.272	0	0.44	eclipsing redback	rhs+05,prf+17,bbh+20
J1748−2446Q	0.360	2.812	−3.6	234.50	30.295	28.602	0.722	0.53	eccentric, massive	rhs+05,prf+17,bbh+20,mrd+22
J1748−2446R	0.101	5.02854	47	237.60	i	i	i	i		rhs+05,prf+17,mrd+22
J1748−2446S	0.249	6.11664	6.4	236.26	i	i	i	i		rhs+05,prf+17,mrd+22
J1748−2446T	0.443	7.08491	31	237.70	i	i	i	i		rhs+05,prf+17,mrd+22
J1748−2446U	0.148	3.28914	30	235.46	3.57026	5.97248	0.60498	0.45	eccentric	rhs+05,prf+17,mrd+22
J1748−2446V	0.178	2.07251	−9.5	239.11	0.5036	0.567	0	0.14		rhs+05,prf+17,bbh+20,mrd+22
J1748−2446W	0.037	4.20518	12	239.14	4.877	5.869	0.015	0.34		rhs+05,prf+17,mrd+22
J1748−2446X	0.488	2.99926	5.9	240.03	4.99850	5.1071	0.3024	0.29	eccentric	rhs+05,prf+17,bbh+20,mrd+22
J1748−2446Y	0.056	2.04816	15	239.11	1.16443	1.1785	0.00002	0.16		rhs+05,prf+17,mrd+22
J1748−2446Z	0.033	2.46259	−8.6	238.85	3.48807	3.5304	0.7608	0.25	eccentric	prf+17,bbh+20,mrd+22
J1748−2446aa	0.222	5.78804	−44	237.42	i	i	i	i		prf+17,mrd+22
J1748−2446ab	0.038	5.11971	42	238.34	i	i	i	i		prf+17,mrd+22
J1748−2446ac	0.337	5.08691	23	238.72	i	i	i	i		prf+17,mrd+22
J1748−2446ad	0.232	1.39595	−3.4	235.6	1.09443	1.1028	0	0.16	eclipsing redback, fastest pulsar known	hrs+06,prf+17,bbh+20
J1748−2446ae	0.032	3.65859	−57	238.75	0.17073	0.0406	0	0.019	low−mass	prf+17,mrd+22
J1748−2446af	0.145	3.30434	−23	237.34	i	i	i	i		prf+17,mrd+22
J1748−2446ag	0.167	4.44803	1.2	237.75	i	i	i	i		prf+17,mrd+22
J1748−2446ah	0.127	4.96515	57	237.75	i	i	i	i		prf+17,mrd+22
J1748−2446ai	0.192	21.22838	140	233.9	0.85088	2.8088	0.4400	0.57	eccentric, compact, massive	prf+17,mrd+22
J1748−2446aj	0.17	2.95891	14.1232(6)	238.633(6)	i	i	i	i		prf+17,crf+18
J1748−2446ak	0.287	1.89010	8.8495(6)	236.705(5)	i	i	i	i		prf+17,crf+18
J1748−2446al	*	5.95	*	236.50	i	i	i	i		crf+18
J1748−2446am	*	2.93382	−13.680(3)	238.18	0.80011	0.9378	0.20475	0.17 (xiii)	eccentric, compact	ar18
J1748−2446an	0.201	4.802	15.5746(6)	237.736(8)	9.61975	12.78204	0.0065856(6)	0.504		rgf+21
J1748−2446ao	*	2.27438	*	238.29	57.55568	62.31071	0.32488873(6)	0.83	eccentric, massive, long orbit	(g: MeerKAT, TRAPUM project)
J1748−2446ap	*	3.744	*	239.7	*	*	*	*	binary	(g: MeerKAT, TRAPUM project)
J1748−2446aq	*	12.52	*	238.9	*	*	*	*	binary	(g: MeerKAT, TRAPUM project)
J1748−2446ar	*	1.95	*	238.7	*	*	*	*	binary	(g: MeerKAT, TRAPUM project)
J1748−2446as	*	2.32	*	238.3	i	i	i	i		(g: MeerKAT, TRAPUM project)
J1748−2446at	*	2.18	*	239.4	*	*	*	*	binary	(g: MeerKAT, TRAPUM project)
J1748−2446au	*	4.54	*	238.1	*	*	*	*	binary	(g: MeerKAT, TRAPUM project)
J1748−2446av	*	1.84	*	238.9	*	*	*	*	binary	(g: MeerKAT, TRAPUM project)
J1748−2446aw	*	13.04	*	239.1	*	*	*	*	binary	(g: MeerKAT, TRAPUM project)
Pulsars in NGC 6440	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
B1745−20	0.05	288.603	+0.39933(10)×10⁻¹⁵	219.4(2)	i	i	i	i	slow, young	lmd96,frb+08
J1748−2021B	0.03	16.7601	−32.913(16)	220.922(11)	20.55001	4.46699	0.57016	0.090 (vii)	eccentric	frb+08
J1748−2021C	0.48	6.22693	−5.984(16)	226.95(6)	i	i	i	i		frb+08
J1748−2021D	0.57	13.4958	+58.678(16)	224.98(3)	0.28607	0.3972	0.00	0.14	eclipsing redback	frb+08
J1748−2021E	0.14	16.2640	+31.24(4)	224.10(4)	i	i	i	i		frb+08
J1748−2021F	0.12	3.79363	−1.055(18)	220.43(8)	9.83397	9.49757	0.0531	0.35	mildly eccentric	frb+08
J1748−2021G	0.07	5.21534	−15.9525(7)	219.601(2)	i	i	i	i		vsb+22
J1748−2021H	0.09	2.84849	18.9976(9)	222.584(7)	0.36079	0.025324	0	0.0072	black widow	vsb+22
Pulsars in NGC 6441	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
J1750−37A	0.21	111.608	+566.1(8)	233.82(3)	17.3343	24.439	0.71243	0.7 (viii)	eccentric, massive, slow	pdc+05, frb+08
J1750−3703B	0.33	6.07454	+1.92(4)	234.391(9)	3.60511	2.8659	0.00404	0.19		frb+08
J1750−3703C	0.11	26.5687	−99.6(3)	230.67(2)	i	i	i	i		frb+08
J1750−3703D	0.05	5.13994	+49.28(2)	230.09(17)	i	i	i	i		frb+08
J1750−3703E	*	251.15877	*	230.94	i	i	i	i	slow	(g: MeerKAT, TRAPUM project)
J1750−3703F	*	6.00660	*	228.210	*	*	*	*	binary	(g: MeerKAT, TRAPUM project)
J1750−3703G	*	5.35226	*	229.198	i	i	i	i		(g: MeerKAT, TRAPUM project)
J1750−3703H	*	4.6529	*	227.25	i	i	i	i		(g: MeerKAT, TRAPUM project)
J1750−3703I	*	4.9764	*	230.74	i	i	i	i		(g: MeerKAT, TRAPUM project)
Pulsars in NGC 6517	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
J1801−0857A	0.022	7.17561	−51.310(4)	182.56(1)	i	i	i	i		lrfs11
J1801−0857B	0.022	28.96159	+219.10(5)	182.39(6)	59.83645	33.87545	0.038	0.38	long orbit	lrfs11
J1801−0857C	0.057	3.73870	−6.5(2)	182.26(3)	i	i	i	i		lrfs11
J1801−0857D	1.202	4.22653	+0.69(6)	174.71(9)	i	i	i	i	distant from centre	lrfs11
J1801−0857E	*	7.6017	−103.7	183.29	i	i	i	i		pmq+21
J1801−0857F	*	24.89199	−267.2	183.713	i	i	i	i		pmq+21
J1801−0857G	*	51.59137	7.99	185.30	i	i	i	i		pmq+21
J1801−0857H	*	5.64272	3.44	179.6	i	i	i	i		pqm+21
J1801−0857I	*	3.25	−1.43	177.8	i	i	i	i		pqm+21
J1801−0857J	*	1.70	*	182.4	*	*	*	*	binary	(g: FAST)
J1801−0857K	*	9.59	*	182.4	i	i	i	i		(g: FAST)
J1801−0857L	*	6.06	*	165.6	i	i	i	i		(g: FAST)
J1801−0857M	*	5.36	*	183.1	i	i	i	i		(g: FAST)
J1801−0857N	*	5.00	*	182.6	*	*	*	*	binary?	(g: FAST)
J1801−0857O	*	4.28	*	182.6	i	i	i	i		(g: FAST)
J1801−0857P	*	5.54	*	183.2	i	i	i	i		(g: FAST)
J1801−0857Q	*	7.26	*	182.5	i	i	i	i		(g: FAST)
Pulsars in NGC 6522	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
J1803−3002A	0.24	7.10139	4.0(1)	192.6234(5)	i	i	i	i		pdc+05, zmc+20
J1803−3002B	*	4.397	*	192.6	i	i	i	i		(g: GBT)
J1803−3002C	*	5.840	*	194.5	i	i	i	i		(g: GBT)
J1803−3002D	*	5.53	*	192.73	i	i	i	i		rgf+21
J1803−3002E	*	17.926	*	192.8	i	i	i	i		(g: MeerKAT, TRAPUM project)
J1803−3002F	*	148.36	*	197.15	i	i	i	i	slow	(g: MeerKAT, TRAPUM project)
Pulsars in NGC 6539	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
B1802−07	0.25	23.1009	+47.0(4)	186.38(1)	2.61676	3.92059(5)	0.21206(2)	0.35 (ix)	mildly eccentric	dbl+93,tamt93,tc99
Pulsars in NGC 6544	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
J1807−2459A	0.07	3.05945	−0.4335(3)	134.0040(6)	0.071091	0.01222	0.0	0.010	black widow	dlm+01,rgh+01, lfrj12
J1807−2500B	0.20	4.18618	8.23245(18)	137.1535(20)	9.95667	28.9204	0.74703	1.47 (x)	eccentric, massive, exchange product, possible MSP - neutron star system	lfrj12
J1807−2459C	*	5.73	*	136.5	*	*	*	*	binary	(g: MeerKAT, TRAPUM project)
Pulsars in NGC 6624	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
B1820−30A	0.05	5.44000	+338.5(1)	86.880(6)	i	i	i	i	young MSP, gamma-ray detection, best evidence for intermediate mass black hole in a globular cluster.	bbl+94, kbmo05, kni07, faa+11, psl+17, abb+20
B1820−30B	0.23	378.596	+0.0315(3)×10⁻¹⁵	87.0(1)	i	i	i	i	slow, young	bbl+94, lfrj12
J1823−3021C	0.134	405.934	+0.2240(25)×10⁻¹⁵	86.88(24)	i	i	i	i	slow, young	lfrj12
J1823−3021D	0.14	3.02006	*	86.8(1.1)	i	i	i	i		lfrj12
J1823−3021E	*	4.394	*	91.4	i	i	i	i		lfrj12
J1823−3021F	*	4.850	*	86.7	0.22068	0.28539	0	0.119	eclipsing redback	lfrj12, rgf+21
J1823−3021G	0.082	6.09129	−1.8(2)	86.206(6)	1.54014	3.00331	0.380466(6)	0.384 (xv)	eccentric, massive, exchange product, possible MSP - neutron star system	rgf+21
J1823−3021H	*	5.13	*	86.85	i	i	i	i		rgf+21
J1823−3021I	*	4.319	*	87.31(4)	i	i	i	i		arb+22
J1823−3021J	*	20.899	*	86.82(7)	i	i	i	i		arb+22
J1823−3021K	1.43	2.768	*	87.50(7)	i	i	i	i		arb+22
J1823−3022	2.99	2497.7869	0.8123×10⁻¹⁵	96.7(2)	i	i	i	i	Slow, not clearly associated with cluster	arb+22
Pulsars in M28 (NGC 6626)	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
B1821−24A	0.204	3.05431	+155(7)	120	i	i	i	i	young MSP, gamma-ray detection	lbm+87, fbtg88, cb04, rfk+04, bbs+11, jgk+13
J1824−2452B	0.152	6.54666	−24.15(94)	119.361(18)	i	i	i	i		beg06, bbs+11
J1824−2452C	0.167	4.15828	17.0158(12)	120.5698(12)	8.07781	7.35739	0.84704372(82)	0.30 (xiv)	eccentric	beg06, bbs+11
J1824−2452D	0.257	79.83543	0.0982×10⁻¹⁵	119.87(12)	30.41151	24.87142	0.776334(12)	0.45	young, eccentric, massive. Secondary exchange product.	beg06, bbs+11
J1824−2452E	0.050	5.41913	−10.88(26)	119.631(19)	i	i	i	i		beg06, bbs+11
J1824−2452F	2.794	2.45115	0.9494(24)	123.6079(20)	i	i	i	i	distant from core	beg06, bbs+11
J1824−2452G	0.093	5.90906	17.89(40)	119.674(14)	0.10458	0.016495	0.0	0.011	black widow	beg06, bbs+11
J1824−2452H	0.319	4.62941	8.19(62)	121.532(50)	0.43503	0.71945	0.0	0.20	eclipsing redback	beg06, bbs+11, pdf+10
J1824−2452I	*	3.93185	*	119.0	0.45941	0.7658	0.0	0.20	eclipsing redback, switches occasionally to accreting X-ray MSP	beg06, bbs+11, pfb+13, pdf+13
J1824−2452J	0.048	4.03969	−7.57(20)	119.1408(72)	0.09743	0.02502	0.0	0.015	black widow	beg06, bbs+11
J1824−2452K	*	4.46105	*	119.8	3.91034	2.6050	0.001524(4)	0.16		(g: GBT), bbs+11
J1824−2452L	*	4.10011	*	119.0	0.22571	0.0570	0.0	0.022	black widow	(g: GBT), bbs+11
J1824−2452M	0.085	4.78428	12.2818	119.352	0.24252	0.03246	0.0	0.012	black widow	dpr+22
J1824−2452N	0.058	3.35287	15.9209	119.321	0.19849	0.04973	0.0	0.021	black widow	dpr+22
Pulsars in NGC 6652	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
J1835−3259A	*	3.889	*	63.35	9.2460	19.6(3)	0.968(5)	0.90	eccentric, massive, exchange product	drk+15
J1835−3259B	0.038	1.83029	6.65	63.5083(6)	1.19786	1.43084	0.0000349(35)	0.201		grf+22, zxw22, ccp+23
Pulsars in M22 (NGC 6656)	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
J1836−2354A	0.68	3.35434	+0.2318(3)	89.107(2)	0.20283	0.0464	0.0	0.020	black widow	lrfs11
J1836−2354B	0.21	3.23227	−0.048(6)	93.3(2)	i	i	i	i		lrfs11
J1836−2354C	*	5.64	*	87.869	*	*	*	*	binary	(g: MeerKAT, TRAPUM project)
J1836−2354D	*	7.79	*	89.543	i	i	i	i		(g: MeerKAT, TRAPUM project)
Pulsars in Glimpse C-01	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
J1848−0129A	*	19.78	*	491.1	*	*	*	*	binary	(g: GBT archival data)
Pulsars in NGC 6712	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
J1853−0842A	*	2.14943	−0.239(2)	155.125(4)	0.14828	0.04919	0	0.0257	black widow	ypr+21
Pulsars in NGC 6749	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
J1905+0154A	0.51(38)	3.193	*	193.692(8)	0.81255	0.58862(4)	0.0	0.090		hrs+07
J1905+0154B	*	4.968	*	192	*	*	*	*	needs confirmation	hrs+07
Pulsars in NGC 6752	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
J1911−5958A	6.39	3.26619	+0.29679(6)	33.704(2)	0.83711	1.20604	0.00000082	0.22(xi)	distant from centre	dlm+01,dpf+02,bvkh03,fpsd03,bkkv06,cfpd06, cbp+12,fhc+14,cfr+23b
J1910−5959B	0.10	8.35780	−79.9(5)	33.28(4)	i	i	i	i		dpf+02,fhc+14
J1911−6000C	2.70	5.27733	+0.22(7)	33.21(4)	i	i	i	i	distant from centre	dpf+02,fhc+14
J1910−5959D	0.19	9.03529	+96.3(3)	33.32(5)	i	i	i	i		dpf+02,fhc+14
J1910−5959E	0.13	4.57177	−43.7(1)	33.29(5)	i	i	i	i		dpf+02,fhc+14
J1910−5959F	0.082	8.48549	74.122(6)	33.20(3)	i	i	i	i		rgf+21
J1910−5959G	*	4.79	*	33.3	i	i	i	i		(g: MeerKAT, TRAPUM project)
J1910−5959H	*	2.01	*	33.25	i	i	i	i		(g: MeerKAT, TRAPUM project)
J1910−5959I	*	2.65	*	33.33	i	i	i	i		(g: MeerKAT, TRAPUM project)
Pulsars in NGC 6760	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
J1911+0102A	0.42	3.61852	−0.658	202.678(3)	0.140996	0.037658(2)	<0.00013	0.020	black widow	dma+93, fhn+05
J1911+0101B	0.12	5.38432	−0.2	196.69(2)	i	i	i	i		fhn+05
Pulsars in M71 (NGC 6838)	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
J1953+1846A	0.33	4.88830	+4.8506	117.3941(15)	0.176795	0.0782246(12)	0.0	0.032	eclipsing black widow	hrs+07, cpf+15
J1953+1846B	*	79.90	*	119.0	466.97	165.61	0	0.49	long orbit	pqm+21
J1953+1846C	*	28.93	*	116.2	378.51	125.11	0	0.41	long orbit	pqm+21
J1953+1846D	*	100.67	*	119.038	10.9388	32.8956	0.6399	1.63	slow, eccentric, massive, possible exchange product?	pqm+21
J1953+1846E	*	4.44	6.02	113.0	*	*	0	0.0077	black widow	hww+21
Pulsars in M15 (NGC 7078)	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
B2127+11A	0.018	110.665	−2107(3)	67.31(5)	i	i	i	i	slow	wkm+89, and93,jcj+06, qp21
B2127+11B	0.079	56.1330	+956(6)	67.69(12)	i	i	i	i		agk+90,and93,jcj+06, qp21
B2127+11C	0.944	30.5293	+499.1(2.5)	67.13(5)	0.33528	2.5183(12)	0.681386(16)	1.13(xii)	Pulsar - neutron star system, eccentric, compact, distant from centre, exchange product	agk+90,pakw91,and93,jcj+06
B2127+11D	0.019	4.80280	−107.5(1.2)	67.28(21)	i	i	i	i		and93, qp21
B2127+11E	0.135	4.65144	+17.8(7)	66.51(12)	i	i	i	i		and93, qp21
B2127+11F	0.279	4.02704	+3.2(8)	65.52(15)	i	i	i	i		and93, qp21
B2127+11G	0.106	37.6602	+195(45)	66.43(24)	i	i	i	i		and93, qp21
B2127+11H	0.038	6.74339	+2.4(1.3)	67.15(12)	i	i	i	i		and93
J2129+1210I	*	5.12	*	67.3	*	*	*	*		pqm+21
Pulsars in M2 (NGC 7089)	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
J2133−0049A	*	10.15	−30.8	43.3	4.2555	3.1401	0.0751	0.19		pqm+21
J2133−0049B	*	6.97	−26	43.8	9.3471	5.8912	0	0.21		pqm+21
J2133−0049C	*	3.00	−3.15	44.1	1.1091	1.1097	0	0.16		pqm+21
J2133−0049D	*	4.22	7.81	43.6	3.4297	3.7207	0	0.27		pqm+21
J2133−0049E	*	3.70	*	43.8	*	*	*	*	binary	pqm+21
J2133−0049F	*	4.78	*	43.4	*	*	*	*	binary	(g: FAST)
Pulsars in M30 (NGC 7099)	Offset (arcmin)	Period (a) (ms)	dP/dt (a,b) (10⁻²⁰)	DM (cm⁻³ pc)	Orbital Period (days)	x (s)	Eccentricity	m_c (c) (M_☉)	Notes	References
J2140−2310A	0.067	11.0193	−5.181(20)	25.0640(41)	0.17399	0.2349416(48)	< 0.00012	0.11	eclipsing redback	rsb+04
J2140−2310B	1.2(1)	12.98983	*	25.063(3)	6.21565	19.5222(7)	0.87938(2)	1.31 (xvi)	eccentric, massive	rsb+04,bfr+23
Notes in this table: Pulsar names are as indicated in the latest literature. If there is no available position, the name will refer, by default, to the coordinates of the centre of the cluster. The new ATNF pulsar catalogue retains such names even if, after finding a timing solution, the pulsar's position is found to be different. Pulsars 47 Tuc A and B (ajm+89) have never been confirmed. Pulsar 47 Tuc K (mlj+90), was later found to be the third harmonic of 47 Tuc D (rlm+95). Pulsar Ter 5 B (ljm+90) was later renamed PSR J1744−2444 and suspected of not being associated with the cluster (lmbm00). This is confirmed by the DM distribution of the recent discoveries (rhs+05). An asterisk indicates a parameter is still not well determined - this indicates that there is still no published timing/orbital solution. i - Isolated pulsar. (a) The period and period derivative refer to the epochs indicated in the references. (b) Unit is 10⁻²⁰, except where a power of 10 is indicated. (c) Listed companion masses are calculated assuming a pulsar mass of 1.35 M_☉ and an inclination of 60°. For the cases listed below in red there is further information on the masses of the components, that overrules the values listed in the table. For systems with a total mass measurement, we list total masses with a relative uncertainty better than 10%. (g) Not published yet. Site of discovery indicated. The latest measurement of the rate of advance of periastron of 47 Tuc H (from frk+17) is 0.06725(19) °/year (1-σ). This implies a total system mass of 1.665(7) M_☉. From this, we can derive m_p < 1.51 and m_c > 0.173 M_☉ respectively. The median of the probability for the mass of the pulsar, assuming a flat cos i distribution, is 1.46 M_☉. The rate of advance of periastron of NGC 1851A has been measured (rfgr19), it is 0.0129592(16) °/year (1-σ). This implies a total system mass of 2.4730(6) M_☉. In adition, the Einstein delay has also been measured, γ = 0.0216(9) s. This yields individual masses for the components. The pulsar has a mass of 1.25^+0.05_−0.06 M_☉, the companion has a mass of 1.22^+0.06_−0.05 M_☉. The precision of this measurement is affected by kinematic effects on the projected semi-major axis of the system. The rate of advance of periastron of M5B has been measured at 0.0142(7) °/year (one σ, see fwbh08). Assuming the periastron advance is fully relativistic, the total binary mass is 2.29 ± 0.17 M_☉. The maximum pulsar mass is 2.52 M_☉ and m_c > 0.13 M_☉. m_p is 2.08^+0.18_−0.19 M_☉ (median and 1-σ limits). The probability of having a pulsar mass between 1.2 and 1.44 M_☉ is 0.77%. The mass ratio for PSR J1740−5340 has been measured from spectroscopic measurements of the motion of the companion star (fsg+03) to be m_p/m_c = 5.85(13). Assuming m_p between 1.4 and 1.9 M_☉, this constrains the inclination to be between 47° and 56°. The rate of advance of periastron of Ter 5 I has been measured (rhs+05), it is 0.255(1) °/year (1-σ). This implies a total system mass of 2.17(2) M_☉. From this, we can derive m_p < 1.96 and m_c > 0.24 M_☉ respectively. Furthermore, the median of the expected pulsar mass (assuming a flat cos i distribution) is 1.87 M_☉. The rate of advance of periastron of Ter 5 J has been measured (rhs+05), it is 0.327(4) °/year (1-σ). This implies a total system mass of 2.20(4) M_☉. From this, we can derive m_p < 1.96 and m_c < 0.38 M_☉ respectively. The median of the expected pulsar mass (assuming a flat cos i distribution) is 1.73 M_☉. The rate of advance of periastron of NGC 6440B has been measured (frb+08), it is 0.00391(18) °/year (1-σ). This implies a total system mass of 2.92(20) M_☉. From this, we can derive m_p < 3.24 and m_c > 0.11 M_☉ respectively. Furthermore, the median and 1-σ limits of the expected pulsar mass (assuming a flat cos i distribution) is 2.74 ± 0.20 M_☉, there is a 1 % chance that the inclination is low enough to make the mass of the pulsar smaller than 2 M_☉. This is by far the largest pulsar mass ever measured. The rate of advance of periastron of NGC 6441A has been measured (frb+08), it is 0.0055(3) °/year (1-σ). This implies a total system mass of 1.97(15) M_☉. From this, we can derive m_p < 1.65 and m_c > 0.53 M_☉ respectively. The medians for the pulsar and companion masses are 1.26 and 0.67 M_☉. Another measurement of the rate of periastron has been published by pcm+06; this yields a total system mass of 2.15 ± 0.06 M_☉, consistent with the measurement above. The rate of advance of periastron of PSR B1802−07 has been measured (tc99), it is 0.0578(16) °/year (1-σ). This implies a total system mass of 1.62(7) M_☉. From this, we can derive m_p < 1.33 and m_c > 0.29 M_☉ respectively. Further constraints on the masses of the components of this system have been obtained from a detection of the rate of advance of periastron, which implies (assuming it is fully caused by relativistic effects) a total mass of 2.57190(73) M_☉. The Shapiro delay was also detected and allows an estimate of the masses of the individual components: m_c = 1.2064(20) M_☉ (the largest mass ever detected around a fully recycled pulsar, it could be a heavy white dwarf or another neutron star) and m_p = 1.3655(21) M_☉. This is the most precise mass ever derived for a millisecond pulsar. Further constraints on the masses of the components of this system have been obtained by cfr+23b from the Shapiro delay: m_c = 0.202 ± 0.006 M_☉ and m_p = 1.55 ± 0.07 M_☉. These masss values are consistent with previous optical estimates by bkkv06, who obtained the mass ratio from the measured orbital velocity of the white dwarf, 7.36 ± 0.25. Using mass-radius relations appropriate for low-mass helium-core white dwarfs, they infer m_c = 0.18 ± 0.02 M_☉, and m_p = 1.40^+0.16_−0.10 M_☉. If the white-dwarf spectrum and the distance of NGC 6752 are used instead to determine the white-dwarf radius, they find r_c = 0.058 ± 0.004 R_☉; for the observed temperature, the mass-radius relations predict a white-dwarf mass of m_c = 0.175 ± 0.010 M_☉, and thus m_p = 1.34 ± 0.08 M_☉. These results are consistent with those of cfpd06. For the M15 C pulsar - neutron star system, the rate of advance of periastron, the relativistic gamma parameter and the orbital decay due to emission of gravitational waves have been measured, this system is now over-determined and represents therefore the first test of GR for a binary system in a globular cluster (jcj+06). m_p = 1.358 ± 0.010 M_☉ and m_c = 1.354 ± 0.010 M_☉. The rate of advance of periastron of Ter 5 am has been measured (ar18), it is 0.454(4) °/year (1-σ). This implies a total system mass of 1.85(2) M_☉. From this, we can derive m_p < 1.70 and m_c < 0.15 M_☉ respectively. The median of the expected pulsar mass (assuming a flat cos i distribution) is 1.649 M_☉. The rate of advance of periastron of M28C has been measured (beg06), it is 0.029816(88) °/year (1-σ). This implies a total system mass of 1.616(14) M_☉. From this, we can derive m_p < 1.367 and m_c < 0.245 M_☉ respectively. The median of the expected pulsar mass (assuming a flat cos i distribution) is 1.31 M_☉. The rate of advance of periastron of NGC 6624G has been measured (rgf+21), it is 0.217(4) °/year (1-σ). This implies a total system mass of 2.65(7) M_☉. From this, we can derive m_p < 2.4 and m_c < 0.44 M_☉ respectively. The median of the expected pulsar mass (assuming a flat cos i distribution) is 2.10 M_☉. The rate of advance of periastron of M30B has been measured (bfr+23), it is 0.078(2) °/year (1-σ). This implies a total system mass of 2.53(8) M_☉. From this, we can derive m_p < 1.43 and m_c < 1.10 M_☉ respectively.

Fig. 2: Mass function plotted against orbital period for all known binary pulsar systems (data from the ATNF pulsar catalogue). The systems in globular clusters are indicated by the red circles; we highlight those in 47 Tuc with a ``+'' and those in Terzan 5 with a "x". Pulsar - neutron star systems are highlighted in purple. The inclined gray lines indicate a constant projected semi-major axis x = a sin i, the smallest on the lower left corner represents x = 1 light millisecond, each successive line represents an increase of x by a factor of 10. The dashed orange lines indicate, for a pulsar mass of 1.4 M_☉ and i = 90 degrees, the mass functions for the following companion masses (from top to bottom): 15 M_☉ (typical of O/B star companions), 1.4 M_☉ (typical of neutron star or heavy ONeMg WD companions), 0.2 M_☉ (typical of He WD and ``redback'' companions to millisecond pulsars), 0.03 M_☉ (typical of companions to ``black widow'' pulsars) and 0.0015 M_☉ (similar to that of the ``diamond planet'' system).

Latest changes to the page:

2023 05 18: Added discovery of Terzan 5 av and aw, added discovery of NGC 362G, H and I, by the TRAPUM survey.
2023 04 10-14: Added discovery of Terzan 5 as, at and au, by the TRAPUM survey.
2023 03 21: Added gamma-ray detection of NGC 6652B and the detection of its white dwarf companion.
2023 03 16:
- Added discovery of Terzan 5 ar, by the TRAPUM survey,
- Added reference on timing of ω Centauri A-E, which also corrected spin period of ω Centauri J,
- Added reference on X-ray detection of ω Centauri A.
2023 02 17: Added discovery of NGC 362F, by the TRAPUM survey.
2023 01 13:
- Added reference on the orbit of M30B, found 20 years after the discovery of the pulsar.
- Added discovery of NGC 6517P and Q, by the FAST globular cluster survey,
2023 01 11: Added reference on the discovery of 13 new pulsars in ω Centauri and on the timing of PSR J1911−5958A, in NGC 6752 (pulsar designated as PSR J1910−5959A in latest paper).
2023 01 06: Added discovery of NGC 362E and Terzan 5 aq, by the TRAPUM survey.
2023 01 02: Added discovery of NGC 362C and D, by the TRAPUM survey.
2022 12 07:
- Added discovery of NGC 362A and B from archival Parkes data,
- Added the discovery of Terzan 5 ap and NGC 6522F by the TRAPUM survey,
- Added the discovery of Glimpse C-01 A in archival GBT data,
- Added the discovery of NGC 6517O by the FAST globular cluster survey,
- Updated orbital parameters for Terzan 5 ao, determined from archival GBT data.
2022 11 21: Added discovery of Terzan 5 ao, by the TRAPUM survey.
2022 11 14: Added discovery of NGC 6517M and N, by the FAST globular cluster survey. Updated parameters for NGC6517J, K and L.
2022 11 09: Added discovery of NGC 6544C, by the TRAPUM survey.
2022 10 12: Added discovery of NGC 1851O, by the TRAPUM survey.
2022 10 07: Added discovery of ω Centauri P, Q and R, by the TRAPUM survey.
2022 09 26: Updated parameters for M12B, M3E and F, M53B, D and E, M71B, C and D, NGC6517H and I, and M3A, values provided by the FAST globular cluster survey page.
2022 08 30: Added discovery of M62I, by the TRAPUM survey.
2022 07 19: Added reference on discovery and timing of NGC 6397B.
2022 05 31: Added reference on discovery and timing of NGC 6652B.
2022 05 04: Added discovery of NGC 6522E, by the TRAPUM survey.
2022 04 27: Added discovery of ten new pulsars in ω Centauri (F - O), by the TRAPUM survey.
2022 04 14: Added reference on the pulse profiles and polarimetry of 32 of the pulsars in Terzan 5.
2022 04 13: Added reference on the 4 most recent discoveries in NGC6624. The names of the pulsars were changed, because the former NGC6624K is not clearly associated with the cluster, it is now known as PSR J1823−3022.
2022 04 05:
- Added discovery of M2F, M12B, M53E and NGC6517J, K and L, and confirmation of M10A and M71D, from the FAST GC survey.
- Added reference with discovery of M71E, from the FAST GPPS survey.
- Updated orbital and spin parameters for some of the FAST discoveries, from the FAST GC discoveries page.
2022 04 04: Added reference on discovery and timing of NGC 6440G and H.
2022 03 26: Added discovery of 47 Tuc af and NGC 6441H and I, by the TRAPUM survey.
2022 03 24: Added reference on discovery of 13 new pulsars in NGC 1851 (B-N).
2022 02 07: Added discovery of M22C and D, by the TRAPUM survey.
2022 01 28: Added reference on discovery and timing of M28 M and N.
2022 01 11: Added discovery of 47 Tuc ae, by the TRAPUM survey.
2021 12 01: Added discovery of M62H, by the TRAPUM survey.
2021 09 20: Added reference on discovery and timing of NGC 6712A.
2021 08 27: Added discovery of NGC 6624L, by the TRAPUM survey.
2021 08 24: Added discovery of NGC 6624K, by the TRAPUM survey.
2021 08 12: Added reference on discovery of M3F.
2021 06 17: Added reference for discovery of 24 FAST pulsars.
2021 05 29: Added discovery of NGC 1851N, by the TRAPUM survey.
2021 05 25: Added discovery of NGC 1851J, K, L and M, by the TRAPUM survey.
2021 05 12: Added discovery of NGC 1851I and NGC 6441G, by the TRAPUM survey.
2021 03 31: Added discovery of NGC 6441E and F, by the TRAPUM survey. Added reference on discovery and timing of NGC 6517E, F and G.
2021 03 09: Added reference on the first eight MeerKAT pulsar discoveries.
2021 03 04: Added discovery of NGC 6624I and J, and NGC6752 H and I, by the TRAPUM survey.
2021 02 22: Added discovery of first pulsar in M12, by the FAST survey. Updated GC table.
2021 02 19: Added discovery of 7 new MSPs in NGC 1851, by the TRAPUM survey.
2021 01 29: Added discovery of NGC 6342B and M28N, by the TRAPUM survey.
2021 01 26: Added discovery of NGC 6752G, by the TRAPUM survey. Also, added X-ray and optical study of pulsars in M13.
2021 01 13: Added data on Terzan 5 pulsars.
2021 01 11:
- Added 29 new pulsars from the FAST survey (which include pulsars in four new GCs: M2, M10, M14 and NGC 6712),
- Added 11 new pulsars from the MeerKAT MeerTIME/TRAPUM survey,
- Added 7 new pulsars from the GBT (in a new GC, Terzan 1),
- Added 1 new pulsar from the GMRT, NGC 6652B,
- Added 1 new pulsar from Parkes, NGC 6397B,
- Updated list of globular clusters,
- Added data for M28 pulsars from MSc. Thesis of Steve Bégin (University of British Columbia, 2006),
- Added study of the X-ray properties of the pulsars in Terzan 5.
2020 12: timing solution for NGC 6522A and X-ray study of 47 Tuc W.
2020 10: optical detection of the companion of M13F.
2020 02 25: discovery of a new pulsar in M92, and the correction of the period and period derivative of 47 Tuc aa.
2020 02 17: Added discovery of a new pulsar in M13 and timing solutions for all 6 pulsars in that cluster.
2019 12: Added discovery of 5 new MSPs in ω Centauri.
2019 09: Added measurement of the component masses for the NGC 1851A system.
2019 06: Added link to optical detection of the companion of M3B.
2018 06: Added Terzan 5 am.
2018 02: Added reference on timing of 47 Tuc aa.
2018 01: Added reference to discovery and timing of Ter 5 aj, ak and al.
2018 01: Added reference to latest paper on B1820−30A, which presents evidence for an intermediate mass black hole in NGC 6624.
2017 11: Added globular cluster table, simplified plots.
2017 10: Added history, X-ray identifications of 47 Tuc F, S, Z, aa and ab.
2017 06: Added timing solutions for 47 Tuc R, Y and Z.
2017 01: Added Terzan 5 aj, ak and al.
2016 07: Added full timing solutions for 47 Tuc W and X and orbital parameters for 47 Tuc P and V.
2016 03: Added 47 Tuc aa and ab.
2016 08: Added optical IDs of WD companions of 47 Tuc Q, S, T and Y (rbh+15,cpf+15).
2015 06: Added extremely eccentric orbit of NGC 6652A.
2015 05: Added timing solution of M71a and optical ID of its companion.
2014 09: Added timing solution of M5C and optical ID of its companion.
2014 03: Added X-ray IDs of the pulsars in NGC 6752.
2013 10: M28A detected in gamma rays.
2013 09: M28I is identified as a transitional MSP.
2011 12: Added NGC 6624 D, E, F, plus first solutions for NGC 6624C, M62 D, E and F and NGC 6544 A and B.
2011 11: NGC 6624A detected in gamma rays.
2011 01: Added NGC 6517 A to D, M22 A and B.
2011 01: Added NGC 5986A.
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