J2154+1727

General information

Source (J2000)IAU Source name (J2000)
J2154+1727
Source (B1950)IAU Source name (B1950)
2152+172
J2000 coordinatesRight ascension α and declination δ in J2000 epoch
α = 21 54 40.900400, δ = +17 27 50.793000
RedshiftRedshift
z = 1.02
Source typeOptical class
Quasar
Optical V magnitudeOptical V magnitude
mV = 18

Images and parameters

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]
0.13
SS [Jy]Correlated flux density [Jy] measured on projected baseline length listed in the next column
0.153 ± 0.01
BS [Mλ]Projected baseline length [Mλ] for the measured flux density listed in the previous column
67
SL [Jy]Correlated flux density [Jy] measured on projected baseline length listed in the next column
0.101 ± 0.008
BS [Mλ]Projected baseline length [Mλ] for the measured flux density listed in the previous column
3139
Ba [μas]Major axis of the restoring beam [μas]
309
Bb [μas]Minor axis of the restoring beam [μas]
39
BPA [degrees]Position angle of the major axis [degrees]
-10.7
St [mJy]Total clean flux density [mJy]
61
Sp [mJy/beam]Peak flux density [mJy/beam]
62
σ [mJy/beam]Off-source r.m.s. noise in the residual image [mJy/beam]
3
ξrQuality factor of the residual
noise in the image
0.9

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 69 ± 21 62 ± 14 <25 0 0 >3.690 3.78 5.05

Downloads

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