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GRB–SN Connection in SAO RAS Observations

Published online by Cambridge University Press:  22 July 2013

A.S. Moskvitin ,
V.V. Sokolov  and
V.N. Komarova
A.S. Moskvitin
Affiliation:
SAO RAS, Russia;. e-mail: mosk@sao.ru; sokolov@sao.ru; vkom@sao.ru
V.V. Sokolov
Affiliation:
SAO RAS, Russia;. e-mail: mosk@sao.ru; sokolov@sao.ru; vkom@sao.ru
V.N. Komarova
Affiliation:
SAO RAS, Russia;. e-mail: mosk@sao.ru; sokolov@sao.ru; vkom@sao.ru
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Abstract

We present the results of SAO RAS 6-m BTA spectral observations of GRBs and XRFs with the signs of SNe: GRB/XRF 060218 (SN 2006aj) and XRF 080109 (SN 2008D). The properties of these events are similar to those of usual core-collapse SNe without GRBs. Some spectral features in the cases of SN 2006aj and SN 2008D may be interpreted as hydrogen and helium traces. This supports an idea of presence of a relic envelope around the progenitor star and the shock break-out effects observed in X-rays, UV and optics.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 61: Gamma-ray Bursts: 15 Years of GRB Afterglows – Progenitors, Environments and Host Galaxies from the Nearby to the Early Universe , 2013 , pp. 403 - 405
Copyright
© EAS, EDP Sciences 2013

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References

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