Physics
Scientific paper
Jan 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008sptz.prop..471k&link_type=abstract
Spitzer Proposal ID #471
Physics
Scientific paper
The discovery of the new, bright, type Ia supernova, SN 2007sr in the interacting galaxy pair, NGC 4038 offers a unique opportunity to study a type Ia supernova (SN) in an extreme environment. The occurrence of such an event during the remaining cryogenic lifetime of Spitzer is unlikely, so we request DDT observations with the full suite of Spitzer instrumentation. We will use the wealth of diagnostics afforded by the mid-IR fine-structure lines to infer the location and kinematics of the nucleosynthesised material. Through our previous Spitzer programmes, we are gradually building up a sample -- still relatively small -- of mid-IR observations of SNe. This will ultimately allow to understand the diversity of observed behaviour. SN 2007sr is likely to generate enormous interest in the wider community, and our proposed Spitzer observations will play a key role in piecing together the evolutionary history for this unique SN.
Gerardy Chris
Kotak Rubina
Meikle Peter
van Dyk Schuyler
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