SPECTROPOLARIMETRY OF EXTREMELY LUMINOUS TYPE Ia SUPERNOVA 2009dc: NEARLY SPHERICAL EXPLOSION OF SUPER-CHANDRASEKHAR MASS WHITE DWARF
@article{Tanaka2009SPECTROPOLARIMETRYOE, title={SPECTROPOLARIMETRY OF EXTREMELY LUMINOUS TYPE Ia SUPERNOVA 2009dc: NEARLY SPHERICAL EXPLOSION OF SUPER-CHANDRASEKHAR MASS WHITE DWARF}, author={Masaomi Tanaka and Koji S. Kawabata and Masayuki Yamanaka and Kei-ichi Maeda and Takashi Hattori and Kentaro Aoki and Ken’ichi Nomoto and Masanori Iye and Toshiyuki Sasaki and Paolo A. Mazzali and Elena Pian}, journal={The Astrophysical Journal}, year={2009}, volume={714}, pages={1209 - 1216} }
We present the first spectropolarimetric observations of a candidate of super-Chandrasekhar mass Type Ia supernova (SN): SN 2009dc. The observations were performed at 5.6 and 89.5 days after the B-band maximum. The data taken at the later epoch are used to determine the interstellar polarization. Continuum polarization is found to be small (<0.3%), indicating that the explosion is nearly spherically symmetric. This fact suggests that a very aspherical explosion is not a likely scenario for SN…
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Fourteen months of observations of the possible super-Chandrasekhar mass Type Ia Supernova 2009dc
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In this paper, we present and analyse optical photometry and spectra of the extremely luminous and slowly evolving Type Ia supernova (SN Ia) 2009dc, and offer evidence that it is a…
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