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| 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
| 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 - 2024 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | ICRF J092703.0+390220 | Sy1 | 09 27 03.01394144 | +39 02 20.8518067 | 17.17 | 17.00 | 16.486 | ~ | 1001 | 1 | ||
| 2 | 3C 273 | BLL | 12 29 06.6998257176 | +02 03 08.597629980 | 13.05 | 14.830 | 14.11 | ~ | 5798 | 1 | ||
| 3 | 3C 279 | Bla | 12 56 11.16657958 | -05 47 21.5251510 | 18.01 | 17.75 | 15.87 | ~ | 3042 | 2 | ||
| 4 | QSO B1334-127 | Bla | 13 37 39.78278132 | -12 57 24.6933925 | 18.5 | 19.00 | 16.22 | ~ | 503 | 1 | ||
| 5 | QSO B1730-130 | QSO | 17 33 02.70578907 | -13 04 49.5482119 | 18 | 19.50 | 18.78 | 17.39 | ~ | 1138 | 1 | |
| 6 | NAME Sgr A Region | reg | 17 45 12 | -28 48.3 | ~ | 939 | 0 | |||||
| 7 | NAME Sgr A* | X | 17 45 40.03599 | -29 00 28.1699 | ~ | 4386 | 3 | |||||
| 8 | 4C 09.57 | BLL | 17 51 32.81857326 | +09 39 00.7284066 | 17.46 | 16.78 | 15.57 | ~ | 943 | 1 | ||
| 9 | QSO B1921-293 | BLL | 19 24 51.05595254 | -29 14 30.1210248 | 18.71 | 18.21 | 15.07 | ~ | 868 | 0 |
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