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Date and Time of the Query: 2019-06-25 T13:07:35 PDT
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For refcode 2005ApJ...630L..33M:
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Copyright by American Astronomical Society. Reproduced by permission
2005ApJ...630L..33M Luminosity and Mass Limits for the Progenitor of the Type Ic Supernova 2004gt in NGC 4038 Justyn R. Maund, Stephen J. Smartt, and Francois Schweizer Abstract. We report on our attempts to locate the progenitor of the Type Ic supernova SN 2004gt in NGC 4038. We use high-resolution HST ACS images of SN 2004gt and have compared them with deep pre-explosion HST WFPC2 F336W, F439W, F555W, and F814W images. We identify the SN location on the pre-explosion frames with an accuracy of 5 mas. We show that the progenitor is below the detection thresholds of all the pre-explosion images. These detection limits are used to place luminosity and mass limits on the progenitor. The progenitor of SN 2004gt seems to be restricted to a low-luminosity high-temperature star, either a single WC star with an initial mass of >40 M_sun_ or a low-mass star in a binary. The pre-explosion data cannot distinguish between the two scenarios. Keywords: Galaxies: Individual: NGC 4038, Stars: Evolution, Stars: Supernovae: General, supernovae: individual (2004gt)
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