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A search for Fermi ...
A search for Fermi bursts associated with supernovae and their frequency of occurrence
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Kovacevic, M. (författare)
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Izzo, L. (författare)
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Wang, Y. (författare)
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Muccino, M. (författare)
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Della Valle, M. (författare)
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Amati, L. (författare)
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Barbarino, C. (författare)
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Enderli, M. (författare)
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Pisani, G. B. (författare)
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- Li, L. (författare)
- Stockholms universitet,KTH,Fysik,Stockholm University, Sweden,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),KTH Royal Institute of Technology, Sweden
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(creator_code:org_t)
- 2014-09-30
- 2014
- Engelska.
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Ingår i: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 569, s. A108-
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Context. Observations suggest that most long duration gamma-ray bursts (GRBs) are connected with broad-line supernovae Ib/c, (SNe-Ibc). The presence of GRB-SNe is revealed by rebrightenings emerging from the optical GRB afterglow 10-15 days, in the rest-frame of the source, after the prompt GRB emission. Aims. Fermi/GBM has a field of view (FoV) about 6.5 times larger than the FoV of Swift, therefore we expect that a number of GRB-SN connections have been missed because of lack of optical and X-ray instruments on board of Fermi, which are essential for revealing SNe associated with GRBs. This has motivated our search in the Fermi catalog for possible GRB-SN events. Methods. The search for possible GRB-SN associations follows two requirements: (1) SNe should fall inside the Fermi/GBM error box of the considered long GRB, and (2) this GRB should occur within 20 days before the SN event. Results. We have found five cases within z < 0.2 fulfilling the above reported requirements. One of them, GRB130702A-SN 2013dx, was already known to have a GRB-SN association. We have analyzed the remaining four cases and we have concluded that three of them are, very likely, just random coincidences due to the Fermi/GBM large error box associated with each GRB detection. We found one GRB possibly associated with a SN 1998bw-like source, GRB 120121B/SN 2012ba. Conclusions. The very low redshift of GRB 120121B/SN 2012ba (z = 0 : 017) implies a low isotropic energy of this burst (E-iso = 1 : 39 x 10(48)) erg. We then compute the rate of Fermi low-luminosity GRBs connected with SNe to be rho(0,b) <= 770 Gpc(-3) yr(-1). We estimate that Fermi/GBM could detect 1-4 GRBs-SNe within z <= 0.2 in the next 4 years.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Nyckelord
- gamma-ray burst: general
- supernovae: general
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Kovacevic, M.
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Izzo, L.
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Wang, Y.
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Muccino, M.
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Della Valle, M.
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Amati, L.
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visa fler...
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Barbarino, C.
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Enderli, M.
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Pisani, G. B.
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Li, L.
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visa färre...
- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Fysik
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NATURVETENSKAP
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- Av lärosätet
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Kungliga Tekniska Högskolan
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Stockholms universitet