Approaching NGC3079 with VLBI
Abstract
The Seyfert 2 galaxy NGC3079 is one of the nearest radio-weak AGN. We have carried out multi-frequency, multi-epoch VLBI observations of this object and detected new components, proper motion of the order of 0.1 c, strong spectral variability, and free-free absorption. Based on phase-referenced astrometry, we suggest a new identification of components seen at 1.7 GHz. Our results suggest that the nucleus in NGC3079 is embedded in a dense medium which strongly affects the radio appearance of the AGN ejecta. We supplement our work with Seyfert VLBI observations taken from the literature.
Cite
@article{arxiv.astro-ph/0309382,
title = {Approaching NGC3079 with VLBI},
author = {E. Middelberg and T. P. Krichbaum and A. L. Roy and A. Witzel and J. A. Zensus},
journal= {arXiv preprint arXiv:astro-ph/0309382},
year = {2007}
}
Comments
To be published in "Future Directions in High Resolution Astronomy" (Celebration of the 10th Anniversary of the Very Long Baseline Array), ASP Conference Series, 7 pages, 1 figure, needs newpasp.sty