J2022+7611

General information

Source (J2000)IAU Source name (J2000)
J2022+7611
Source (B1950)IAU Source name (B1950)
2023+760
J2000 coordinatesRight ascension α and declination δ in J2000 epoch
α = 20 22 35.575939, δ = +76 11 26.171580
RedshiftRedshift
z = 0.594
Source typeOptical class
BL Lac object
Optical V magnitudeOptical V magnitude
mV = 17.8

Images and parameters

Observation epoch2010-10-01
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]
0.82
SS [Jy]Correlated flux density [Jy] measured on projected baseline length listed in the next column
0.253 ± 0.052
BS [Mλ]Projected baseline length [Mλ] for the measured flux density listed in the previous column
56
SL [Jy]Correlated flux density [Jy] measured on projected baseline length listed in the next column
0.257 ± 0.013
BS [Mλ]Projected baseline length [Mλ] for the measured flux density listed in the previous column
3138
Ba [μas]Major axis of the restoring beam [μas]
104
Bb [μas]Minor axis of the restoring beam [μas]
38
BPA [degrees]Position angle of the major axis [degrees]
-31.6
St [mJy]Total clean flux density [mJy]
767
Sp [mJy/beam]Peak flux density [mJy/beam]
192
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
1.46

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]
1 226 ± 51 180 ± 32 26 ± 5 0 0 8.991 ± 3.051 6.78 27.60
2 87 ± 39 38 ± 16 86 ± 35 105 ± 17 -51.2 ± 9.4 0.312 ± 0.227 N/A N/A
3 91 ± 34 63 ± 19 35 ± 11 170 ± 5 -127.7 ± 1.8 1.952 ± 1.125 N/A N/A
4 265 ± 94 50 ± 18 219 ± 76 338 ± 38 -122.3 ± 6.5 0.146 ± 0.089 N/A N/A

Downloads

Epoch Image UV plot RAD plot FITS file of Image
2010-10-01 eps, jpg eps, jpg eps, jpg fits