J1637+4717

General information

Source (J2000)IAU Source name (J2000)
J1637+4717
Source (B1950)IAU Source name (B1950)
1636+473
Common nameCommon name
4C 47.44
J2000 coordinatesRight ascension α and declination δ in J2000 epoch
α = 16 37 45.130554, δ = +47 17 33.830900
RedshiftRedshift
z = 0.735
Source typeOptical class
Quasar
Optical V magnitudeOptical V magnitude
mV = 17.5

Images and parameters

Observation epoch2011-05-01
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]
1.01
SS [Jy]Correlated flux density [Jy] measured on projected baseline length listed in the next column
1.098 ± 0.024
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
0.201 ± 0.018
BS [Mλ]Projected baseline length [Mλ] for the measured flux density listed in the previous column
3044
Ba [μas]Major axis of the restoring beam [μas]
189
Bb [μas]Minor axis of the restoring beam [μas]
34
BPA [degrees]Position angle of the major axis [degrees]
-14.8
St [mJy]Total clean flux density [mJy]
751
Sp [mJy/beam]Peak flux density [mJy/beam]
407
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
1.34

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]
1 748 ± 109 367 ± 48 45 ± 6 0 0 10.609 ± 2.509 4.14 7.63

Downloads

Epoch Image UV plot RAD plot FITS file of Image
2011-05-01 eps, jpg eps, jpg eps, jpg fits