J1701+3954

General information

Source (J2000)IAU Source name (J2000)
J1701+3954
Source (B1950)IAU Source name (B1950)
1659+399
J2000 coordinatesRight ascension α and declination δ in J2000 epoch
α = 17 01 24.634812, δ = +39 54 37.091490
RedshiftRedshift
z = 0.5071
Source typeOptical class
BL Lac object
Optical V magnitudeOptical V magnitude
mV = 17.4

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]
0.3
SS [Jy]Correlated flux density [Jy] measured on projected baseline length listed in the next column
0.355 ± 0.021
BS [Mλ]Projected baseline length [Mλ] for the measured flux density listed in the previous column
55
SL [Jy]Correlated flux density [Jy] measured on projected baseline length listed in the next column
0.176 ± 0.011
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]
158
Bb [μas]Minor axis of the restoring beam [μas]
41
BPA [degrees]Position angle of the major axis [degrees]
-19.6
St [mJy]Total clean flux density [mJy]
232
Sp [mJy/beam]Peak flux density [mJy/beam]
151
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
1.21

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]
1 155 ± 27 156 ± 19 <11 0 0 >31.997 2.50 7.98
2 54 ± 17 32 ± 9 52 ± 14 416 ± 7 -139.3 ± 1.0 0.493 ± 0.249 N/A N/A
3 52 ± 22 16 ± 6 179 ± 73 426 ± 37 -167.6 ± 4.9 0.040 ± 0.029 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