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HI and optical studies of Wolf-Rayet galaxies

Published online by Cambridge University Press:  21 March 2013

A. Omar  and
S. Jaiswal
A. Omar
Affiliation:
Aryabhatta Research Institute of observational sciences, Manora Peak, Nainital 263 129, India. email: aomar@aries.res.in
S. Jaiswal
Affiliation:
Aryabhatta Research Institute of observational sciences, Manora Peak, Nainital 263 129, India. email: aomar@aries.res.in
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Abstract

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The tidal interactions between galaxies are believed to be the main mechanism responsible for Wolf-Rayet (WR) phases in galaxies. The HI 21 cm-line is the best tracer for detecting tidal features in galaxies. We are studying WR galaxies in the HI line using GMRT and in the Hα line using Devasthal Optical telescope. Signatures of tidal interactions in Mrk 996 and Mrk 005, previously believed to be in non-interacting environment, have been detected using both HI and Hα images.

Keywords

galaxies: dwarf — radio lines: galaxies — galaxies: ISM
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S292: Molecular Gas, Dust, and Star Formation in Galaxies , August 2012 , pp. 161
Copyright
Copyright © International Astronomical Union 2013