Constraints on supernova progenitors from spatial correlations with H-alpha emission
Abstract
We have attempted to constrain the progenitors of all supernova types, through correlations of the positions of historical supernovae with recent star formation, as traced by H-alpha emission. Through pixel statistics we have found that a large fraction of the SNII population do not show any association with current star formation, which we put down to a 'runaway' fraction of these progenitors. The SNIb/c population accurately traces the H-alpha emission, with some suggestion that the SNIc progenitors show a higher degree of correlation than the SNIb, suggesting higher mass progenitors for the former. Overall the SNIa population only show a weak correlation to the positions of HII regions, but as many as a half may be associated with a young stellar population.
Keywords
Cite
@article{arxiv.0704.2387,
title = {Constraints on supernova progenitors from spatial correlations with H-alpha emission},
author = {J. P. Anderson and P. A. James and M. Salaris and S. M. Percival},
journal= {arXiv preprint arXiv:0704.2387},
year = {2009}
}