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Photospheric emission from gamma-ray bursts
KTH, Skolan för teknikvetenskap (SCI), Fysik, Partikel- och astropartikelfysik.ORCID-id: 0000-0003-4378-8785
2013 (engelsk)Inngår i: EAS Publications Series, 2013, s. 53-57Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

In spite of extensive research over the past decades, a complete physical picture of the origin of the prompt gamma-ray burst emission is still lacking. During recent years, evidence has been accumulating that the jet photosphere plays an important role. In this paper we summarize the lessons learned from Fermi observations regarding the behavior of the photosphere and discuss why photospheric emission does not necessarily appear as blackbody radiation. We concentrate on two strong and important bursts, GRB 090902B and GRB 110721A, which serve as examples of the standard appearance photospheric emission may have in gamma-ray burst spectra.

sted, utgiver, år, opplag, sider
2013. s. 53-57
Serie
EAS Publications Series, ISSN 1633-4760 ; 61
Emneord [en]
Black body radiation, Gamma ray bursts, Photospheric emission, Physical pictures, Antenna radiation, Gamma rays, Stars
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-139962DOI: 10.1051/eas/1361006ISI: 000323183700007Scopus ID: 2-s2.0-84887077384OAI: oai:DiVA.org:kth-139962DiVA, id: diva2:688324
Konferanse
2012 Gamma-Ray Burst Symposium, GRB 2012; Malaga, Spain, 8-12 October 2012
Merknad

QC 20140116

Tilgjengelig fra: 2014-01-16 Laget: 2014-01-16 Sist oppdatert: 2014-01-23bibliografisk kontrollert

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