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Astronomy & Astrophysics, (577), p. A116, 2015

DOI: 10.1051/0004-6361/201425381

Cambridge University Press (CUP), Proceedings of the International Astronomical Union, A29B(11), p. 251-251, 2015

DOI: 10.1017/s1743921316005196

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SN 2013dx associated with GRB 130702A: a detailed photometric and spectroscopic monitoring and a study of the environment

Journal article published in 2015 by V. D’Elia, E. Pian, A. Melandri ORCID, P. D’Avanzo, M. Della Valle ORCID, P.~A A. Mazzali ORCID, S. Piranomonte, G. Tagliaferri ORCID, Valerio D'Elia ORCID, P. D'Avanzo, L.~A A. Antonelli, F. Bufano, S. Covino ORCID, D. Fugazza, D. Malesani and other authors.
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

AbstractWe aim at characterizing SN 2013dx, associated with GRB 130702A, and their environment, through ground-based observational campaigns in the optical-IR band. We infer a synthesized 56Ni mass of ~0.2 M⊙, a photospheric velocity of the ejected material declining from ~ 2.7 × 104 km s−1 at 8 rest frame days from the explosion, to ~ 3.5× 103 km s−1 at 40 days, a kinetic energy of ~ 35 × 1051 erg, an ejected mass of ~ 7 M⊙ and a progenitor mass of ~ 25-30 M⊙. We also find that the host belongs to a group of galaxies, an unprecedented finding for a GRB-associated SN and, to our knowledge, for long GRBs in general.

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