J0254+2343

General information

Source (J2000)IAU Source name (J2000)
J0254+2343
Source (B1950)IAU Source name (B1950)
0251+235
J2000 coordinatesRight ascension α and declination δ in J2000 epoch
α = 02 54 24.718127, δ = +23 43 26.474610
RedshiftRedshift
z = 1.987
Source typeOptical class
Quasar
Optical V magnitudeOptical V magnitude
N/A

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]
0.05
SS [Jy]Correlated flux density [Jy] measured on projected baseline length listed in the next column
0.342 ± 0.035
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
0.34 ± 0.027
BS [Mλ]Projected baseline length [Mλ] for the measured flux density listed in the previous column
3060
Ba [μas]Major axis of the restoring beam [μas]
245
Bb [μas]Minor axis of the restoring beam [μas]
39
BPA [degrees]Position angle of the major axis [degrees]
-8.7
St [mJy]Total clean flux density [mJy]
186
Sp [mJy/beam]Peak flux density [mJy/beam]
170
σ [mJy/beam]Off-source r.m.s. noise in the residual image [mJy/beam]
5
ξrQuality factor of the residual
noise in the image
0.99

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]
1 154 ± 39 167 ± 29 <19 0 0 >20.054 7.58 19.90

Downloads

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