J2354+4553

General information

Source (J2000)IAU Source name (J2000)
J2354+4553
Source (B1950)IAU Source name (B1950)
2351+456
Common nameCommon name
4C 45.51
J2000 coordinatesRight ascension α and declination δ in J2000 epoch
α = 23 54 21.680218, δ = +45 53 04.236400
RedshiftRedshift
z = 1.986
Source typeOptical class
Quasar
Optical V magnitudeOptical V magnitude
mV = 20.6

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]
0.31
SS [Jy]Correlated flux density [Jy] measured on projected baseline length listed in the next column
0.289 ± 0.021
BS [Mλ]Projected baseline length [Mλ] for the measured flux density listed in the previous column
62
SL [Jy]Correlated flux density [Jy] measured on projected baseline length listed in the next column
0.144 ± 0.008
BS [Mλ]Projected baseline length [Mλ] for the measured flux density listed in the previous column
3132
Ba [μas]Major axis of the restoring beam [μas]
155
Bb [μas]Minor axis of the restoring beam [μas]
39
BPA [degrees]Position angle of the major axis [degrees]
-28.7
St [mJy]Total clean flux density [mJy]
141
Sp [mJy/beam]Peak flux density [mJy/beam]
124
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
1.19

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]
1 122 ± 29 122 ± 20 <14 0 0 >29.156 3.98 10.70

Downloads

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