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arXiv · astro-ph/0312508

On The Hydrogen Emission From The Type Ia Supernova 2002ic

Lifan Wang·Dietrich Baade·Peter Hoeflich·J. Craig Wheeler·Koji Kawabata·Ken'ichi Nomoto
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Abstract

The discovery of SN 2002ic and 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$α$ 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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Lifan Wang, Dietrich Baade, Peter Hoeflich, J. Craig Wheeler, Koji Kawabata, Ken'ichi Nomoto. 2003-12-18. On The Hydrogen Emission From The Type Ia Supernova 2002ic. https://doi.org/10.1086/383411

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