文章基本信息

标题：Core collapse supernovae and starbursts (invited)
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作者：M. Perez-Torres
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2009
卷号：2009
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：Core-collapse supernovae (CCSNe; Type Ib/c and Type II SNe) are the endproducts of massive stars (M ≥ 8 M⊙), and yield radio events whose brightness depends on the intensity of the interaction experienced by the supernova ejecta with the circumstellar presupernova wind material [1]. The fact that CCSNe are intrinsically radio supernovae –albeit with a huge range of different radio powers– and hence unaffected by dust absorption, together with the high resolution and high sensitivity provided by current VLBI arrays, has been exploited to directly image the radio brightness structure of CCSNe in nearby (D <∼ 20 Mpc) galaxies. This has allowed to gain insight into the physics of both CCSNe and of the circumstellar medium (CSM) with which they interact. In addition, ultra-high-resolution, ultra-high-sensitivity radio observations of CCSNe in Luminous and Ultra-Luminous Infrared Galaxies (LIRGs and ULIRGs, respectively) in the local Universe, can be used to directly measure of the current CCSN rate and star formation rate (SFR), given an assumed initial mass function (IMF).