UV Studies of a Core Collapse Supernova

Details UV Studies of a Core Collapse Supernova UV Studies of a Core Collapse Supernova

Jul 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009hst..prop12242k&link_type=abstract

HST Proposal ID #12242. Cycle 18

Physics

Scientific paper

The UV spectrum of a core collapse SN encodes unique information about nucleosynthesis, the star's mass loss history, shock physics, and dust formation. This proposal aims at a detailed study of one bright core collapse SN, discoved as a result of the many ongoing surveys, either a Type IIP, IIn or Ib or Ic supernova. We will address the role of circumstellar interaction and mass loss through CNO lines in the UV, the nature of dust formation from UV line profiles, and we will use the UV continuum as a diagnostic of non-thermal emission from the shock. The overall goal is to achieve a better understanding of these objects by combining ground-based observations with complementary HST data. We have used HST to obtain critical UV spectra from the explosion to the nebular phase with good results for a limited number of objects. The advent of COS provides new capability for UV observations which we would like to exploit. Over the past decade, we have conducted studies of a small number of nearby SN with HST, and we have published an extensive series of papers. When nature provides a bright candidate, HST should be ready to respond. We are ready to run that program.;

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