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SWIFT AND FERMI OBSERVATIONS OF THE EARLY AFTERGLOW OF THE SHORT GAMMA-RAY BURST 090510
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
University and INFN of Trieste.
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2010 (English)In: ASTROPHYSICAL JOURNAL LETTERS, ISSN 2041-8205, Vol. 709, no 2, L146-L151 p.Article in journal (Refereed) Published
Abstract [en]

We present the observations of GRB090510 performed by the Fermi Gamma-Ray Space Telescope and the Swift observatory. This is a bright, short burst that shows an extended emission detected in the GeV range. Furthermore, its optical emission initially rises, a feature so far observed only in long bursts, while the X-ray flux shows an initial shallow decrease, followed by a steeper decay. This exceptional behavior enables us to investigate the physical properties of the gamma-ray burst outflow, poorly known in short bursts. We discuss internal and external shock models for the broadband energy emission of this object.

Place, publisher, year, edition, pages
2010. Vol. 709, no 2, L146-L151 p.
Keyword [en]
gamma-ray burst: individual (GRB090510), relativistic processes, shock waves
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:kth:diva-29605DOI: 10.1088/2041-8205/709/2/L146ISI: 000274209300012Scopus ID: 2-s2.0-77949506023OAI: oai:DiVA.org:kth-29605DiVA: diva2:396822
Note

QC 20110211

Available from: 2011-02-11 Created: 2011-02-11 Last updated: 2017-05-11Bibliographically approved

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Ryde, Felix

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