The light curves of type Ia Supernova 2008gy
D. Yu. Tsvetkov, P. Balanutsa, E.S. Gorbovskoy, D.A. Kuvshinov, A.V., Krylov, T. Kopytova, T. Kryachko, S. Korotkiy
TL;DR
This paper presents photometric observations of supernova 2008gy, showing it is a fast-declining, possibly subluminous Type Ia supernova with unusual color characteristics, located far from nearby galaxies.
Contribution
It provides detailed light curves and color analysis of SN 2008gy, highlighting its unique properties and uncertain host galaxy association.
Findings
SN 2008gy is a fast-declining Type Ia supernova.
It exhibits redder colors than typical for its class.
The supernova is located far from nearby galaxies.
Abstract
CCD BVRI photometry is presented for type Ia supernova 2008gy. The light curves match the template curves for fast-declining SN Ia, but the colors appear redder than average, and the SN may also be slightly subluminous. SN 2008gy is found to be located far outside the boundaries of three nearest galaxies, each of them has nearly equal probability to be the host galaxy.
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Taxonomy
TopicsGamma-ray bursts and supernovae