J1659+2629

General information

Source (J2000)IAU Source name (J2000)
J1659+2629
Source (B1950)IAU Source name (B1950)
1657+265
Common nameCommon name
4C 26.51
J2000 coordinatesRight ascension α and declination δ in J2000 epoch
α = 16 59 24.149448, δ = +26 29 36.942970
RedshiftRedshift
z = 0.7947
Source typeOptical class
Quasar
Optical V magnitudeOptical V magnitude
mV = 18

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]
0.35
SS [Jy]Correlated flux density [Jy] measured on projected baseline length listed in the next column
0.31 ± 0.028
BS [Mλ]Projected baseline length [Mλ] for the measured flux density listed in the previous column
57
SL [Jy]Correlated flux density [Jy] measured on projected baseline length listed in the next column
0.203 ± 0.013
BS [Mλ]Projected baseline length [Mλ] for the measured flux density listed in the previous column
2476
Ba [μas]Major axis of the restoring beam [μas]
234
Bb [μas]Minor axis of the restoring beam [μas]
42
BPA [degrees]Position angle of the major axis [degrees]
-10.9
St [mJy]Total clean flux density [mJy]
311
Sp [mJy/beam]Peak flux density [mJy/beam]
147
σ [mJy/beam]Off-source r.m.s. noise in the residual image [mJy/beam]
2
ξrQuality factor of the residual
noise in the image
1.1

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]
1 197 ± 25 175 ± 16 22 ± 2 0 0 11.971 ± 2.181 2.48 8.81
2 66 ± 16 32 ± 7 70 ± 15 342 ± 8 23.2 ± 1.3 0.403 ± 0.161 N/A N/A
3 65 ± 15 37 ± 8 64 ± 13 1099 ± 7 0.2 ± 0.3 0.474 ± 0.178 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