VLBI monitoring of a sample of 15 AGN at 22 GHz

Free access article

Issue		A&A Volume 380, Number 1, December II 2001


Page(s)		72 - 80
Section		Extragalactic astronomy
DOI		http://dx.doi.org/10.1051/0004-6361:20011365

A&A 380, 72-80 (2001)
DOI: 10.1051/0004-6361:20011365

I. Data

K. Wiik^{1, 2}, E. Valtaoja^{1, 3} and K. Leppänen⁴

¹ Tuorla Observatory, Väisäläntie 20, 21500 Piikkiö, Finland
² Metsähovi Radio Observatory, Metsähovintie 114, 02540 Kylmälä, Finland
³ Department of Physical Sciences, University of Turku, 20100 Turku, Finland
⁴ Nokia Research Center, PO Box 407, 00045 Nokia Group, Finland

(Received 31 July 2001 / Accepted 25 September 2001)

Abstract
We have observed a sample of 15 bright active galactic nuclei (AGN) three times during 1992-1996 using the global 22 GHz VLBI network. The sample consists of all sources in the complete 2 Jy catalog of Valtaoja et al. that were not observed at 22 GHz VLBI before the first epoch. We will present submilliarcsecond resolution VLBI images of these sources with description of the observations and data analysis techniques. Part II of this paper will contain a detailed analysis of the images.

Key words: galaxies: jets -- galaxies: active

Offprint request: Kaj Wiik, kaj.wiik@iki.fi

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