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The second-closest ...
The second-closest gamma-ray burst: Sub-luminous GRB 111005A with no supernova in a super-solar metallicity environment
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- Michalowski, M. J. (författare)
- University of Edinburgh,Uniwersytet im. Adama Mickiewicza w Poznaniu,Adam Mickiewicz University in Poznań
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- Xu, Dong (författare)
- University of Edinburgh,Chinese Academy of Sciences
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- Stevens, J. (författare)
- Commonwealth Scientific and Industrial Research Organisation (CSIRO)
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- Levan, Andrew (författare)
- The University of Warwick
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- Yang, Jun, 1979 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Joint Institute for VLBI in Europe (JIVE)
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- Paragi, Z. (författare)
- Joint Institute for VLBI in Europe (JIVE)
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- Kamble, Atish (författare)
- Harvard-Smithsonian Center for Astrophysics
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- Tsai, An Li (författare)
- Uniwersytet im. Adama Mickiewicza w Poznaniu,Adam Mickiewicz University in Poznań
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- Dannerbauer, H. (författare)
- Universität Wien,University of Vienna,Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- van der Horst, A. J. (författare)
- George Washington University
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- Shao, Lang (författare)
- Hebei Normal University,Chinese Academy of Sciences
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- Crosby, David (författare)
- University of Edinburgh
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- Gentile, Gianfranco (författare)
- Universiteit Gent,Ghent university,Vrije Universiteit Brüssel (VUB),Vrije Universiteit Brussel (VUB)
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- Stanway, Elizabeth (författare)
- The University of Warwick
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- Wiersema, K. (författare)
- University Of Leicester,The University of Warwick
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- Fynbo, Johan P.U. (författare)
- Niels Bohr Institute
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- Tanvir, Nial R. (författare)
- University Of Leicester
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- Kamphuis, Peter (författare)
- Ruhr-Universität Bochum
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- Garrett, M. A. (författare)
- Universiteit Leiden (UL),Leiden University (UL),University of Manchester
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- Bartczak, Przemysław (författare)
- Uniwersytet im. Adama Mickiewicza w Poznaniu,Adam Mickiewicz University in Poznań
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University of Edinburgh Uniwersytet im Adama Mickiewicza w Poznaniu (creator_code:org_t)
- 2018-09-11
- 2018
- Engelska.
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Ingår i: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 616
- Relaterad länk:
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https://research.cha... (primary) (free)
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https://www.aanda.or...
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We report the detection of the radio afterglow of a long gamma-ray burst (GRB) 111005A at 5-345 GHz, including very long baseline interferometry observations with a positional error of 0.2 mas. The afterglow position is coincident with the disc of a galaxy ESO 58049 at z = 0.01326 (∼1″ from its centre), which makes GRB 111005A the second-closest GRB known to date, after GRB 980425. The radio afterglow of GRB 111005A was an order of magnitude less luminous than those of local low-luminosity GRBs, and obviously less luminous than those of cosmological GRBs. The radio flux was approximately constant and then experienced an unusually rapid decay a month after the GRB explosion. Similarly to only two other GRBs, we did not find the associated supernovae (SNe), despite deep near- and mid-infrared observations 1-9 days after the GRB explosion, reaching ∼20 times fainter than other SNe associated with GRBs. Moreover, we measured a twice-solar metallicity for the GRB location. The low y-ray and radio luminosities, rapid decay, lack of a SN, and super-solar metallicity suggest that GRB 111005A represents a rare class of GRB that is different from typical core-collapse events. We modelled the spectral energy distribution of the GRB 111005A host finding that it is a moderately star-forming dwarf galaxy, similar to the host of GRB 980425. The existence of two local GRBs in such galaxies is still consistent with the hypothesis that the GRB rate is proportional to the cosmic star formation rate (SFR) density, but suggests that the GRB rate is biased towards low SFRs. Using the far-infrared detection of ESO 580-49, we conclude that the hosts of both GRBs 111005A and 980425 exhibit lower dust content than what would be expected from their stellar masses and optical colors.
Ämnesord
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Nyckelord
- Dust, extinction
- Galaxies: abundances
- Galaxies: star formation
- Galaxies: individual: ESO 580-49
- Gamma-ray burst: individual: 111005A
- Gamma-ray burst: general
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Michalowski, M. ...
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Xu, Dong
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Stevens, J.
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Levan, Andrew
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Yang, Jun, 1979
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Paragi, Z.
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visa fler...
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Kamble, Atish
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Tsai, An Li
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Dannerbauer, H.
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van der Horst, A ...
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Shao, Lang
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Crosby, David
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Gentile, Gianfra ...
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Stanway, Elizabe ...
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Wiersema, K.
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Fynbo, Johan P.U ...
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Tanvir, Nial R.
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Kamphuis, Peter
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Garrett, M. A.
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Bartczak, Przemy ...
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