J0927+3902

General information

Source (J2000)IAU Source name (J2000)
J0927+3902
Source (B1950)IAU Source name (B1950)
0923+392
Common nameCommon name
4C 39.25
J2000 coordinatesRight ascension α and declination δ in J2000 epoch
α = 09 27 03.013934, δ = +39 02 20.851860
RedshiftRedshift
z = 0.695
Source typeOptical class
Quasar
Optical V magnitudeOptical V magnitude
mV = 17.9

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]
SS [Jy]Correlated flux density [Jy] measured on projected baseline length listed in the next column
3.907 ± 0.055
BS [Mλ]Projected baseline length [Mλ] for the measured flux density listed in the previous column
48
SL [Jy]Correlated flux density [Jy] measured on projected baseline length listed in the next column
0.694 ± 0.062
BS [Mλ]Projected baseline length [Mλ] for the measured flux density listed in the previous column
3086
Ba [μas]Major axis of the restoring beam [μas]
200
Bb [μas]Minor axis of the restoring beam [μas]
37
BPA [degrees]Position angle of the major axis [degrees]
-4.2
St [mJy]Total clean flux density [mJy]
3286
Sp [mJy/beam]Peak flux density [mJy/beam]
447
σ [mJy/beam]Off-source r.m.s. noise in the residual image [mJy/beam]
6
ξrQuality factor of the residual
noise in the image
1.15

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]
1 355 ± 65 332 ± 45 18 ± 2 0 0 30.384 ± 8.039 22.00 69.80
2 175 ± 46 193 ± 34 <18 53 ± 2 -44.1 ± 1.7 >15.730 N/A N/A
3 913 ± 217 111 ± 26 308 ± 73 181 ± 36 -149.5 ± 11.4 0.269 ± 0.110 N/A N/A
4 757 ± 173 122 ± 27 220 ± 50 203 ± 25 -20.0 ± 6.9 0.437 ± 0.171 N/A N/A
5 338 ± 114 58 ± 19 274 ± 91 1898 ± 46 -66.2 ± 1.4 0.126 ± 0.073 N/A N/A

Downloads

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