J1821+6818

General information

Source (J2000)IAU Source name (J2000)
J1821+6818
Source (B1950)IAU Source name (B1950)
1822+682
J2000 coordinatesRight ascension α and declination δ in J2000 epoch
α = 18 21 59.491723, δ = +68 18 43.008670
RedshiftRedshift
z = 1.692
Source typeOptical class
Galaxy
Optical V magnitudeOptical V magnitude
N/A

Images and parameters

Observation epoch2011-05-01
S86 GHzTotal single dish flux density measured at 86 GHz obtained from pointing and calibration scan measurements at Pica Veleta or Plateau de Bure [Jy]
0.33
SS [Jy]Correlated flux density [Jy] measured on projected baseline length listed in the next column
0.315 ± 0.022
BS [Mλ]Projected baseline length [Mλ] for the measured flux density listed in the previous column
62
SL [Jy]Correlated flux density [Jy] measured on projected baseline length listed in the next column
0.125 ± 0.009
BS [Mλ]Projected baseline length [Mλ] for the measured flux density listed in the previous column
3061
Ba [μas]Major axis of the restoring beam [μas]
82
Bb [μas]Minor axis of the restoring beam [μas]
37
BPA [degrees]Position angle of the major axis [degrees]
-64.2
St [mJy]Total clean flux density [mJy]
199
Sp [mJy/beam]Peak flux density [mJy/beam]
145
σ [mJy/beam]Off-source r.m.s. noise in the residual image [mJy/beam]
4
ξrQuality factor of the residual
noise in the image
1.18

Component
StotTotal flux density of the component [mJy]
SpeakPeak flux density of the component [mJy/beam]
dComponent size [μas]
rComponent's offset from the core [μas]
θPosition angle of the offset [degrees]
TbBrightness temperature obtained from the model fits [1010K]
Tb,minVisibility based estimate of the minimum brightness temperature [1010K]
Tb,limVisibility based estimate of the maximum brightness temperature [1010K]
1 157 ± 36 140 ± 24 19 ± 3 0 0 20.232 ± 6.774 2.13 2.79
2 41 ± 19 40 ± 13 <19 181 ± 3 -153.4 ± 1.0 >4.929 N/A N/A
Observation epoch2011-10-01
S86 GHzTotal single dish flux density measured at 86 GHz obtained from pointing and calibration scan measurements at Pica Veleta or Plateau de Bure [Jy]
0.25
SS [Jy]Correlated flux density [Jy] measured on projected baseline length listed in the next column
0.176 ± 0.021
BS [Mλ]Projected baseline length [Mλ] for the measured flux density listed in the previous column
51
SL [Jy]Correlated flux density [Jy] measured on projected baseline length listed in the next column
0.168 ± 0.009
BS [Mλ]Projected baseline length [Mλ] for the measured flux density listed in the previous column
3116
Ba [μas]Major axis of the restoring beam [μas]
161
Bb [μas]Minor axis of the restoring beam [μas]
35
BPA [degrees]Position angle of the major axis [degrees]
-24.9
St [mJy]Total clean flux density [mJy]
220
Sp [mJy/beam]Peak flux density [mJy/beam]
179
σ [mJy/beam]Off-source r.m.s. noise in the residual image [mJy/beam]
4
ξrQuality factor of the residual
noise in the image
1.17

Component
StotTotal flux density of the component [mJy]
SpeakPeak flux density of the component [mJy/beam]
dComponent size [μas]
rComponent's offset from the core [μas]
θPosition angle of the offset [degrees]
TbBrightness temperature obtained from the model fits [1010K]
Tb,minVisibility based estimate of the minimum brightness temperature [1010K]
Tb,limVisibility based estimate of the maximum brightness temperature [1010K]
1 180 ± 39 168 ± 27 15 ± 2 0 0 36.726 ± 11.548 2.13 2.79
2 34 ± 20 20 ± 10 52 ± 26 108 ± 13 -161.2 ± 7.0 0.567 ± 0.527 N/A N/A
3 30 ± 18 19 ± 10 42 ± 22 824 ± 11 -164.3 ± 0.8 0.767 ± 0.734 N/A N/A

Downloads

Epoch Image UV plot RAD plot FITS file of Image
2011-05-01 eps, jpg eps, jpg eps, jpg fits
2011-10-01 eps, jpg eps, jpg eps, jpg fits