EAS Publications Series
Volume 10, 2003JENAM 2002, Galactic & Stellar Dynamics
|Page(s)||203 - 203|
|Published online||22 December 2003|
C. Boily, P. Patsis, S. Portegies Zwart, R. Spurzem and C. Theis (eds)
EAS Publications Series, 10 (2003) 203
Detection of water vapor maser in a narrow-line Seyfert 1 nucleus
ASTRON, Westerbork Observatory, P.O. Box 2, Dwingeloo, 7990
AA, The Netherlands
2 Jodrell Bank Observatory, University of Manchester, UK
3 National Astronomical Observatory, Mitaka, Japan
We have discovered 22 GHz water vapor maser toward a narrow-line type 1 (NLS1) Seyfert galaxy, NGC4051. The detection of water masers in such galaxies is very rare. The Doppler-shifted maser components symmetrically straddle a component lying at about 712 km s-1. The location of each maser component is of great interest for studying galactic dynamical structures around an active nucleus. We report on preliminary results of VLA observations.
© EAS, EDP Sciences, 2003
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