Multiwavelength Observations of GRB 110731A: GeV Emission from Onset to Afterglow

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F13%3A00202168" target="_blank" >RIV/68407700:21670/13:00202168 - isvavai.cz</a>

Result on the web

<a href="http://iopscience.iop.org/0004-637X/763/2/71/pdf/apj_763_2_71.pdf" target="_blank" >http://iopscience.iop.org/0004-637X/763/2/71/pdf/apj_763_2_71.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0004-637X/763/2/71" target="_blank" >10.1088/0004-637X/763/2/71</a>

Result language

angličtina

Original language name

Multiwavelength Observations of GRB 110731A: GeV Emission from Onset to Afterglow

Original language description

We report on the multiwavelength observations of the bright, long gamma-ray burst GRB 110731A, by the Fermi and Swift observatories, and by the MOA and GROND optical telescopes. The analysis of the prompt phase reveals that GRB 110731A shares many features with bright Large Area Telescope bursts observed by Fermi during the first three years on-orbit: a light curve with short time variability across the whole energy range during the prompt phase, delayed onset of the emission above 100 MeV, extra power-law component and temporally extended high-energy emission. In addition, this is the first GRB for which simultaneous GeV, X-ray, and optical data are available over multiple epochs beginning just after the trigger time and extending for more than 800 s,allowing temporal and spectral analysis in different epochs that favor emission from the forward shock in a wind-type medium. The observed temporally extended GeV emission is most likely part of the high-energy end of the afterglow emiss

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BN - Astronomy and celestial mechanics, astrophysics

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2013

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Astrophysical Journal

ISSN

0004-637X

e-ISSN

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Volume of the periodical

763

Issue of the periodical within the volume

2

Country of publishing house

US - UNITED STATES

Number of pages

19

Pages from-to

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UT code for WoS article

000313869800002

EID of the result in the Scopus database

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