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On the Nature of Unconfirmed Supernovae

L. S. Aramyan, A. R. Petrosian, A. A. Hakobyan, G. A. Mamon, D. Kunth, M. Turatto, V. Zh. Adibekyan, T. A. Nazaryan

Abstract
We study the nature of 39 unconfirmed supernovae (SNe) from the sky area covered by the Sloan Digital Sky Survey (SDSS) Data Release 8 (DR8), using available photometric and imaging data and intensive literature search. We confirm that 21 objects are real SNe, 2 are Galactic stars, 4 are probable SNe, and 12 remain unconfirmed events. The probable types for 4 objects are suggested: 3 SNe are of probable type Ia, and SN 1953H is probable type II SN. In addition, we identify the host galaxy of SN 1976N and correct the offsets/coordinates of SNe 1958E, 1972F, and 1976N.

Keywords
supernovae: galaxies: stellar content

Astrophysics
Volume 56, Number 2, Page 153
2013 June

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Instituto de Astrofísica e Ciências do Espaço Universidade do Porto Faculdade de Ciências da Universidade de Lisboa Fundação para a Ciência e a Tecnologia
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