Title: More INTEGRAL Observations of Nearby Supernovae


Proposal ID: 0120191
Subject category: Nucleosynthesis
Principal investigator: Leising
Institute: Clemson University


Abstract

We propose to use INTEGRAL SPI and IBIS to measure gamma-ray lines and hard X-ray continua to clarify the mechanisms, nucleosynthesis, and dynamics of sufficiently nearby supernovae, beyond those observations reserved for the core program. These might include important additional observations of objects that do meet the guaranteed time triggers, and observations of detectable objects that do not satisfy those triggers. The requested observations vary from single early tests of a specific hypothesis, for relatively distant SN Ia, to extensive observations for Galactic events. We define the Target of Opportunity trigger criteria clearly for each category by specifying a complete list of potential host galaxies. There is a relatively low probability of any of these events happening in a given year; we must make the most of any opportunity we get.