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The diversity of GRBs and their SNe: Observations from the 10.4m GTC

Published online by Cambridge University Press:  17 October 2017

Antonio de Ugarte Postigo Open the ORCID record for Antonio de Ugarte Postigo [Opens in a new window] ,
Christina Thöne Open the ORCID record for Christina Thöne [Opens in a new window] ,
Zach Cano ,
David Alexander Kann ,
Luca Izzo ,
Rubén Sánchez Ramírez ,
Katarzyna Bensch  and
Ana Sagues
Antonio de Ugarte Postigo
Affiliation:
Instituto de Astrofísica de Andalucía Glorieta de la Astronomía s/n, 18008 Granada, Spain email: deugarte@iaa.es Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, 2100 Copenhagen Ø, Denmark
Christina Thöne
Affiliation:
Instituto de Astrofísica de Andalucía Glorieta de la Astronomía s/n, 18008 Granada, Spain email: deugarte@iaa.es
Zach Cano
Affiliation:
Instituto de Astrofísica de Andalucía Glorieta de la Astronomía s/n, 18008 Granada, Spain email: deugarte@iaa.es
David Alexander Kann
Affiliation:
Instituto de Astrofísica de Andalucía Glorieta de la Astronomía s/n, 18008 Granada, Spain email: deugarte@iaa.es
Luca Izzo
Affiliation:
Instituto de Astrofísica de Andalucía Glorieta de la Astronomía s/n, 18008 Granada, Spain email: deugarte@iaa.es
Rubén Sánchez Ramírez
Affiliation:
Instituto de Astrofísica de Andalucía Glorieta de la Astronomía s/n, 18008 Granada, Spain email: deugarte@iaa.es
Katarzyna Bensch
Affiliation:
Instituto de Astrofísica de Andalucía Glorieta de la Astronomía s/n, 18008 Granada, Spain email: deugarte@iaa.es
Ana Sagues
Affiliation:
Instituto de Astrofísica de Andalucía Glorieta de la Astronomía s/n, 18008 Granada, Spain email: deugarte@iaa.es
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Abstract

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Observing the supernovae (SNe) associated to the different types of gamma-ray bursts (GRBs) is one of the few means to study their progenitors. In the past years, it has become clear that GRB-like events are more heterogeneous than previously thought. There is a marked difference between long GRBs, which are produced by the collapse of very massive stars and are normally associated with broad-lined type Ic SNe, and short bursts, which occur when two compact objects merge and that, at least in some cases, can produce an associated kilonova. Moreover, the SNe associated with different sub-types of long GRBs are also seen to differ, especially those associated with ultra-long duration GRBs. To address this issue in a systematic way we started an observing programme in 2010 at the 10.4m GTC telescope. Here we present some results of our programme, including the detection of 12 new GRB-SNe. Highlights of our sample are the discovery of the first spectroscopic SN associated with a highly energetic (Eγ, iso ~ 1054 erg) “cosmological” burst (GRB 130427A), the study of the SN associated with a shock-breakout GRB (GRB 140606B) and the SN associated with the peculiar ultra-long GRB 101225A at z = 0.85. The sample includes also the follow-up of several short GRBs in search for kilonovae emission (GRB 130603B and GRB 160821B are important examples). Amongst our latest results we present the photometric and spectroscopic observations of the SNe associated with GRB 150818A and GRB 161219B.

Keywords

gamma rays: burstssupernovae: general
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S331: Supernova 1987A:30 years later - Cosmic Rays and Nuclei from Supernovae and their aftermaths , February 2017 , pp. 39 - 44
Copyright
Copyright © International Astronomical Union 2017 

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