On the hydrogen emission from the type Ia supernova 2002ic

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The discovery of SN 2002ic by the Supernova Factory and the subsequent spectroscopic studies have led to the surprising finding that SN 2002ic is a type Ia supernova with strong ejecta-circumstellar interaction. Here we show that nearly 1 year after the explosion the supernova has become fainter overall, but the H-alpha emission has brightened and broadened dramatically compared to earlier observations. We have obtained spectropolarimetry data which show that the hydrogen-rich matter is highly aspherically distributed. These observations suggest that the supernova exploded inside a dense, clumpy, disk-like circumstellar environment.

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Wang, Lifan; Baade, Dietrich; Hoflich, Peter; Wheeler, J. Craig; Kawabata, Koji & Nomoto, Ken'ichi December 10, 2003.

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The discovery of SN 2002ic by the Supernova Factory and the subsequent spectroscopic studies have led to the surprising finding that SN 2002ic is a type Ia supernova with strong ejecta-circumstellar interaction. Here we show that nearly 1 year after the explosion the supernova has become fainter overall, but the H-alpha emission has brightened and broadened dramatically compared to earlier observations. We have obtained spectropolarimetry data which show that the hydrogen-rich matter is highly aspherically distributed. These observations suggest that the supernova exploded inside a dense, clumpy, disk-like circumstellar environment.

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OSTI as DE00835350

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  • Journal Name: The Astrophysical Journal; Journal Volume: 604; Journal Issue: 1pt2; Other Information: Submitted to The Astrophysical Journal, Volume 604, No.1, Part 2; Journal Publication Date: 03/20/2004

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  • Report No.: LBNL--54293
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 835350
  • Archival Resource Key: ark:/67531/metadc782414

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  • December 10, 2003

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  • Dec. 3, 2015, 9:30 a.m.

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  • Sept. 1, 2016, 7:14 p.m.

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Wang, Lifan; Baade, Dietrich; Hoflich, Peter; Wheeler, J. Craig; Kawabata, Koji & Nomoto, Ken'ichi. On the hydrogen emission from the type Ia supernova 2002ic, article, December 10, 2003; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc782414/: accessed August 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.