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An inventory of supershells in nearby galaxies: first results from THINGS

Published online by Cambridge University Press:  01 August 2006

Ioannis Bagetakos ,
Elias Brinks ,
Fabian Walter  and
Erwin de Blok
Ioannis Bagetakos
Affiliation:
Centre for Astrophysics Research, University of Hertfordshire, UK
Elias Brinks
Affiliation:
Centre for Astrophysics Research, University of Hertfordshire, UK
Fabian Walter
Affiliation:
Max–Planck–Institut für Astronomie, Heidelberg, Germany
Erwin de Blok
Affiliation:
Mount Stromlo Observatory, Australian National University, Canberra, Australia
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Abstract

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The HI Nearby Galaxy Survey (THINGS), is a 21–cm HI line survey of a sample of 34 nearby (3–10 Mpc) galaxies (Walter et al. 2005). The observations were carried out with the VLA and have a velocity resolution of 5 km s−1 or better and an angular resolution of 7″ which at this distance range corresponds to a linear resolution of 100–300 pc. One of the primary goals of THINGS is to look at the fine–scale structure of the Interstellar Medium (ISM) and examine how it varies as a function of Hubble type, star formation rate, galaxy mass, metallicity, etc. We present one of the first science results from this project, an inventory of HI shells in the galaxies NGC 628, NGC 3184, and NGC 6946.

Keywords

galaxies: ISM — ISM: structure — radio lines: ISM
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S237: Triggered Star Formation in a Turbulent ISM , August 2006 , pp. 393
Copyright
Copyright © International Astronomical Union 2007

References

Walter, F., Brinks, E., de Blok, W. J. G., Thornley, M. D., & Kennicutt, R. C. 2005, First Results from THINGS: The HI Nearby Galaxy Survey (ASP-CS), 331, 269Google Scholar