Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21924227b&link_type=abstract
American Astronomical Society, AAS Meeting #219, #242.27
Astronomy and Astrophysics
Astronomy
Scientific paper
In globular clusters, dynamical evolution produce luminous X-ray emitting binaries at a rate hundreds of times greater than in the field. If globular clusters also produce SN Ia's at a high rate, it would account for most of the SN Ia production in early type galaxies and provide insight into their formation. Here we use archival HST images of nearby galaxies that have hosted a SNIa to examine the rate at which globular clusters produce these events. The location of the SN Ia is registered on an HST image obtained before the event or after the supernova faded. Of the 36 nearby galaxies examined, 21 had sufficiently good data to search for globular cluster hosts. None of the 21 supernova have a definite globular cluster counterpart, although there are some ambiguous cases. This places an upper limit to the enhancement rate of SN Ia production in globular clusters of about 50, which is an order of magnitude lower than the enhancement rate for luminous X-ray binaries. We conclude that globular clusters are not responsible for producing a significant fraction of the SN Ia events in early-type galaxies. We gratefully acknowledge support from NASA grant NNX11AJ55G.
No associations
LandOfFree
The Enhancement Rate of SN Ia Events in Globular Clusters does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Enhancement Rate of SN Ia Events in Globular Clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Enhancement Rate of SN Ia Events in Globular Clusters will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1578594