Imaging Dust Near Type Ia Supernovae: A New Light Echo Candidate

Details Imaging Dust Near Type Ia Supernovae: A New Light Echo Candidate Imaging Dust Near Type Ia Supernovae: A New Light Echo Candidate

Jul 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006hst..prop10892g&link_type=abstract

HST Proposal ID #10892. Cycle 15

Physics

Scientific paper

Light echos are excellent probes of circumstellar and interstellar dust. We have been using the unique power of light echos to study the progenitors of type Ia supernovae, but currently, only two distant echos are known: SN 1991T and 1998bu. Both events show dust close to the progenitors and the echo light curve suggests that the dust actually surrounds SN 1991T. Here we propose to use HST to confirm a third echo and study its size, brightness and color.

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