147 GHz VLBI observations: Detection of 3C 273 and 3C 279 on the 3100 km baseline Metsähovi - Pico Veleta
Abstract
We report a successful VLBI observation at 147 GHz (2.1 mm) on the 3 100 km long baseline between the telescopes at Metsähovi (Finland) and Pico Veleta (Spain). The sources 3C 273B and 3C 279 were detected with a SNR of ~ 10. For these sources we estimate that 25-30% of the total flux is detectable as correlated flux on the 3 100 km baseline, which gives at 147 GHz a lower limit of the brightness temperature of the inner VLBI jet region of ~ 1x1010 K.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- July 2002
- DOI:
- 10.1051/0004-6361:20020893
- Bibcode:
- 2002A&A...390L..19G
- Keywords:
-
- mm VLBI;
- galaxies: quasars;
- galaxies: individual: 3C 273B;
- 3C 279