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ESC supernova spectroscopy of non-ESC targets
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2008 (English)In: Astronomy and Astrophysics, ISSN 0004-6361, E-ISSN 1432-0746, Vol. 488, no 1, 383-399 p.Article, review/survey (Refereed) Published
Abstract [en]

Aims. We present the spectra of 36 supernovae (SNe) of various types, obtained by the European Supernova Collaboration. Because of the spectral classification and the phase determination at their discovery the SNe did not warrant further study, and the spectra we present are the only ones available for the respective objects. In this paper we present and discuss this material using a new software for the automated classification of SNe spectra. Methods. As a validation of the software, we verify the classification and phase estimate reported for these objects in their discovery/classification circulars. For the comparison, the software uses the library of template spectra of Padova-Asiago Supernova Archive (ASA). Results. For each spectrum of our sample we present a brief, individual discussion, highlighting the main characteristics and possible peculiarities. The comparison with ASA spectra confirms the previous classification of all objects and refines the age estimates. For our software, we determine numerical limits of ""safe"" spectral classification and the uncertainties of the phase determination.

Place, publisher, year, edition, pages
2008. Vol. 488, no 1, 383-399 p.
Keyword [en]
supernovae : general, methods : data analysis
National Category
Physical Sciences
URN: urn:nbn:se:su:diva-58523DOI: 10.1051/0004-6361:20078859ISI: 000258652200047OAI: diva2:420680
authorCount :15Available from: 2011-06-03 Created: 2011-06-03 Last updated: 2011-06-03Bibliographically approved

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