1997A&A...323L..17K


Query : 1997A&A...323L..17K

1997A&A...323L..17K - Astronomy and Astrophysics, volume 323, L17-20 (1997/7-1)

215 GHz VLBI observations of bright Active Galactic Nuclei.

KRICHBAUM T.P., GRAHAM D.A., GREVE A., WINK J.E., ALCOLEA J., COLOMER F., DE VICENTE P., BAUDRY A., GOMEZ-GONZALEZ J., GREWING M. and WITZEL A.

Abstract (from CDS):

We report the detection of 6 active galactic nuclei, and also the marginal detection of the galactic center radio source SgrA*, in 215GHz VLBI observations between the IRAM 30m telescope on Pico Veleta and one 15m antenna of the IRAM Plateau de Bure interferometer (∼0.3mas fringe spacing). In this (second) 1.4mm VLBI-experiment we find source dependent ratios between the total and correlated flux densities in the range of 10-35%, indicating partly resolved brightness distributions on sub-milliarcsecond scales. In view of the calibration uncertainties and the limited uv-coverage at this high frequency this needs further confirmation. The present detection limit of ∼0.4-0.5Jy opens the possibility for more extended 1.4mm VLBI experiments, in particular with phased millimeter arrays.

Abstract Copyright:

Journal keyword(s):

Simbad objects: 9

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Number of rows : 9
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 ICRF J092703.0+390220 Sy1 09 27 03.0138528936 +39 02 20.850343332   17.17 17.00 16.486   ~ 959 1
2 3C 273 BLL 12 29 06.6998257176 +02 03 08.597629980   13.05 14.830 14.11   ~ 5569 1
3 3C 279 Bla 12 56 11.1663795384 -05 47 21.528432492   18.01 17.75 15.87   ~ 2870 2
4 QSO B1334-127 QSO 13 37 39.7829208840 -12 57 24.693846264   18.5 18.5 16.22   ~ 457 1
5 QSO B1730-130 QSO 17 33 02.7055087032 -13 04 49.545516612   18 18.5 18.78 17.39 ~ 1059 1
6 NAME Sgr A Region reg 17 45 12 -28 48.3           ~ 932 0
7 NAME Sgr A* X 17 45 40.03599 -29 00 28.1699           ~ 3886 3
8 4C 09.57 BLL 17 51 32.8186120872 +09 39 00.728629416   17.46 16.78 15.57   ~ 880 1
9 QSO B1921-293 BLL 19 24 51.0555700728 -29 14 30.118109640   18.71 18.21 15.07   ~ 766 0

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2022.06.28-04:55:56

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