Search: onr:"swepub:oai:DiVA.org:su-207106" >
The Peculiar Short-...
The Peculiar Short-duration GRB 200826A and Its Supernova
- Article/chapterEnglish2022
Publisher, publication year, extent ...
-
2022-06-08
-
American Astronomical Society,2022
-
printrdacarrier
Numbers
-
LIBRIS-ID:oai:DiVA.org:su-207106
-
https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-207106URI
-
https://doi.org/10.3847/1538-4357/ac60a2DOI
Supplementary language notes
-
Language:English
-
Summary in:English
Part of subdatabase
Classification
-
Subject category:ref swepub-contenttype
-
Subject category:art swepub-publicationtype
Notes
-
Gamma-ray bursts (GRBs) are classified into long and short events. Long GRBs (LGRBs) are associated with the end states of very massive stars, while short GRBs (SGRBs) are linked to the merger of compact objects. GRB 200826A was a peculiar event, because by definition it was an SGRB, with a rest-frame duration of similar to 0.5 s. However, this event was energetic and soft, which is consistent with LGRBs. The relatively low redshift (z = 0.7486) motivated a comprehensive, multiwavelength follow-up campaign to characterize its host, search for a possible associated supernova (SN), and thus understand the origin of this burst. To this aim we obtained a combination of deep near-infrared (NIR) and optical imaging together with spectroscopy. Our analysis reveals an optical and NIR bump in the light curve whose luminosity and evolution are in agreement with several SNe associated to LGRBs. Analysis of the prompt GRB shows that this event follows the E-p,E-i-E-iso relation found for LGRBs. The host galaxy is a low-mass star-forming galaxy, typical of LGRBs, but with one of the highest star formation rates, especially with respect to its mass (log M-*/M-circle dot = 8.6, SFR similar to 4.0 M-circle dot yr(-1)). We conclude that GRB 200826A is a typical collapsar event in the low tail of the duration distribution of LGRBs. These findings support theoretical predictions that events produced by collapsars can be as short as 0.5 s in the host frame and further confirm that duration alone is not an efficient discriminator for the progenitor class of a GRB.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
-
Rothberg, B.
(author)
-
Palazzi, E.
(author)
-
Kann, D. A.
(author)
-
D'Avanzo, P.
(author)
-
Amati, L.
(author)
-
Klose, S.
(author)
-
Perego, A.
(author)
-
Pian, E.
(author)
-
Guidorzi, C.
(author)
-
Pozanenko, A. S.
(author)
-
Savaglio, S.
(author)
-
Stratta, G.
(author)
-
Agapito, G.
(author)
-
Covino, S.
(author)
-
Cusano, F.
(author)
-
D'Elia, V.
(author)
-
De Pasquale, M.
(author)
-
Della Valle, M.
(author)
-
Kuhn, O.
(author)
-
Izzo, L.
(author)
-
Loffredo, E.
(author)
-
Masetti, N.
(author)
-
Melandri, A.
(author)
-
Minaev, P. Y.
(author)
-
Nicuesa Guelbenzu, A.
(author)
-
Paris, D.
(author)
-
Paiano, S.
(author)
-
Plantet, C.
(author)
-
Rossi, F.
(author)
-
Salvaterra, R.
(author)
-
Schulze, SteveStockholms universitet,Oskar Klein-centrum för kosmopartikelfysik (OKC),Fysikum(Swepub:su)stsc6413
(author)
-
Veillet, C.
(author)
-
Volnova, A. A.
(author)
-
Stockholms universitetOskar Klein-centrum för kosmopartikelfysik (OKC)
(creator_code:org_t)
Related titles
-
In:Astrophysical Journal: American Astronomical Society932:10004-637X1538-4357
Internet link
Find in a library
To the university's database
- By the author/editor
-
Rossi, A.
-
Rothberg, B.
-
Palazzi, E.
-
Kann, D. A.
-
D'Avanzo, P.
-
Amati, L.
-
show more...
-
Klose, S.
-
Perego, A.
-
Pian, E.
-
Guidorzi, C.
-
Pozanenko, A. S.
-
Savaglio, S.
-
Stratta, G.
-
Agapito, G.
-
Covino, S.
-
Cusano, F.
-
D'Elia, V.
-
De Pasquale, M.
-
Della Valle, M.
-
Kuhn, O.
-
Izzo, L.
-
Loffredo, E.
-
Masetti, N.
-
Melandri, A.
-
Minaev, P. Y.
-
Nicuesa Guelbenz ...
-
Paris, D.
-
Paiano, S.
-
Plantet, C.
-
Rossi, F.
-
Salvaterra, R.
-
Schulze, Steve
-
Veillet, C.
-
Volnova, A. A.
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Astronomy Astrop ...
- Articles in the publication
-
Astrophysical Jo ...
- By the university
-
Stockholm University