J1646+4059

General information

Source (J2000)IAU Source name (J2000)
J1646+4059
Source (B1950)IAU Source name (B1950)
1645+410
J2000 coordinatesRight ascension α and declination δ in J2000 epoch
α = 16 46 56.858690, δ = +40 59 17.172040
RedshiftRedshift
z = 0.835
Source typeOptical class
Quasar
Optical V magnitudeOptical V magnitude
mV = 20.7

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]
0.16
SS [Jy]Correlated flux density [Jy] measured on projected baseline length listed in the next column
0.309 ± 0.015
BS [Mλ]Projected baseline length [Mλ] for the measured flux density listed in the previous column
44
SL [Jy]Correlated flux density [Jy] measured on projected baseline length listed in the next column
0.141 ± 0.009
BS [Mλ]Projected baseline length [Mλ] for the measured flux density listed in the previous column
3000
Ba [μas]Major axis of the restoring beam [μas]
184
Bb [μas]Minor axis of the restoring beam [μas]
36
BPA [degrees]Position angle of the major axis [degrees]
-7.8
St [mJy]Total clean flux density [mJy]
87
Sp [mJy/beam]Peak flux density [mJy/beam]
68
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
1.06

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 74 ± 18 64 ± 12 22 ± 4 0 0 4.754 ± 1.733 2.90 3.90
2 8 ± 7 10 ± 5 <46 172 ± 12 -34.1 ± 4.1 >0.112 N/A N/A

Downloads

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