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147 GHz VLBI observations: Detection of 3C 273 and 3C 279 on the 3100 km baseline Metsähovi – Pico Veleta

2002; EDP Sciences; Volume: 390; Issue: 3 Linguagem: Inglês

10.1051/0004-6361

1432-0746

A. Greve, P. Könönen, D. A. Graham, K. Wiik, T. P. Krichbaum, J. E. Conway, Fredrik T. Rantakyrö, S. Urpo, M. Grewing, R. S. Booth, J. A. Zensus, D. John, S. Navarro, Ari Mujunen, Jouko Ritakari, J. Peltonen, P. Sjöman, E. Oinaskallio, M. Berton,

Neutrino Physics Research

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 . 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 ~11010 K.