J0824+3916

General information

Source (J2000)IAU Source name (J2000)
J0824+3916
Source (B1950)IAU Source name (B1950)
0821+394
Common nameCommon name
4C 39.23
J2000 coordinatesRight ascension α and declination δ in J2000 epoch
α = 08 24 55.483855, δ = +39 16 41.904010
RedshiftRedshift
z = 1.2159
Source typeOptical class
Quasar
Optical V magnitudeOptical V magnitude
mV = 18.3

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
0.32 ± 0.021
BS [Mλ]Projected baseline length [Mλ] for the measured flux density listed in the previous column
45
SL [Jy]Correlated flux density [Jy] measured on projected baseline length listed in the next column
0.209 ± 0.009
BS [Mλ]Projected baseline length [Mλ] for the measured flux density listed in the previous column
3075
Ba [μas]Major axis of the restoring beam [μas]
128
Bb [μas]Minor axis of the restoring beam [μas]
36
BPA [degrees]Position angle of the major axis [degrees]
-10.5
St [mJy]Total clean flux density [mJy]
369
Sp [mJy/beam]Peak flux density [mJy/beam]
244
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
1.02

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]
1 257 ± 37 230 ± 25 18 ± 2 0 0 30.060 ± 6.343 7.62 19.50
2 66 ± 28 18 ± 7 157 ± 65 1048 ± 32 -23.0 ± 1.8 0.097 ± 0.070 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