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High supernova rate and enhanced star-formation triggered in M81-M82 encounter

Published online by Cambridge University Press:  01 August 2006

B. Arbutina ,
D. Urošević  and
B. Vukotić
B. Arbutina
Affiliation:
Astronomical Observatory, Volgina 7, 11160 Belgrade, Serbia email: [email protected]
D. Urošević
Affiliation:
Department of Astronomy, University of Belgrade, Studentski trg 16, 11000 Belgrade, Serbia
B. Vukotić
Affiliation:
Astronomical Observatory, Volgina 7, 11160 Belgrade, Serbia email: [email protected]
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It is a general belief that the starburst activity of a nearby galaxy M82 was triggered in a close encounter with its massive companion M81, a few tens of million years ago. Despite the lack of supernovae observed, multiwavelength radio observations of M82 discovered a considerable number of compact supernova remnant candidates. We use these remnants to estimate the supernova rate (SNR) and the enhanced star-formation (SFR) rate in M82, and compare them with rates in normal galaxies.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S237: Triggered Star Formation in a Turbulent ISM , August 2006 , pp. 391
Copyright
Copyright © International Astronomical Union 2007

References

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