J1850+2825

General information

Source (J2000)IAU Source name (J2000)
J1850+2825
Source (B1950)IAU Source name (B1950)
1848+283
J2000 coordinatesRight ascension α and declination δ in J2000 epoch
α = 18 50 27.589824, δ = +28 25 13.155270
RedshiftRedshift
z = 2.56
Source typeOptical class
Quasar
Optical V magnitudeOptical V magnitude
mV = 17.1

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]
0.22
SS [Jy]Correlated flux density [Jy] measured on projected baseline length listed in the next column
0.396 ± 0.025
BS [Mλ]Projected baseline length [Mλ] for the measured flux density listed in the previous column
65
SL [Jy]Correlated flux density [Jy] measured on projected baseline length listed in the next column
0.203 ± 0.006
BS [Mλ]Projected baseline length [Mλ] for the measured flux density listed in the previous column
2462
Ba [μas]Major axis of the restoring beam [μas]
306
Bb [μas]Minor axis of the restoring beam [μas]
39
BPA [degrees]Position angle of the major axis [degrees]
-12.1
St [mJy]Total clean flux density [mJy]
194
Sp [mJy/beam]Peak flux density [mJy/beam]
198
σ [mJy/beam]Off-source r.m.s. noise in the residual image [mJy/beam]
10
ξrQuality factor of the residual
noise in the image
1.08

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]
1 202 ± 64 199 ± 45 <27 0 0 >16.705 3.98 21.50

Downloads

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