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Physics of Gamma-Ray Bursts Prompt Emission
Author
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-37, 37 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-08-24
Country of Publication
Egypt
No. of Pages
37
Main Subjects
Abstract EN
In recent years, our understanding of gamma-ray bursts (GRB) promptemission has been revolutionized, due to a combination of newinstruments, new analysis methods, and novel ideas.
In this review, Idescribe the most recent observational results and currenttheoretical interpretation.
Observationally, a major development isthe rise of time resolved spectral analysis.
These led to (I)identification of a distinguished high energy component, with GeVphotons often seen at a delay and (II) firm evidence for theexistence of a photospheric (thermal) component in a large number ofbursts.
These results triggered many theoretical efforts aimed atunderstanding the physical conditions in the inner jet regions.
I highlight some areas of active theoreticalresearch.
These include (I) understanding the role played by magneticfields in shaping the dynamics of GRB outflow and spectra; (II)understanding the microphysics of kinetic and magnetic energytransfer, namely, accelerating particle to high energies in both shockwaves and magnetic reconnection layers; (III) understanding howsubphotospheric energy dissipation broadens the “Planck” spectrum;and (IV) geometrical light aberration effects.
I highlight some ofthese efforts and point towards gaps that still exist in ourknowledge as well as promising directions for the future.
American Psychological Association (APA)
Pe’er, Asaf. 2015. Physics of Gamma-Ray Bursts Prompt Emission. Advances in Astronomy،Vol. 2015, no. 2015, pp.1-37.
https://search.emarefa.net/detail/BIM-1051981
Modern Language Association (MLA)
Pe’er, Asaf. Physics of Gamma-Ray Bursts Prompt Emission. Advances in Astronomy No. 2015 (2015), pp.1-37.
https://search.emarefa.net/detail/BIM-1051981
American Medical Association (AMA)
Pe’er, Asaf. Physics of Gamma-Ray Bursts Prompt Emission. Advances in Astronomy. 2015. Vol. 2015, no. 2015, pp.1-37.
https://search.emarefa.net/detail/BIM-1051981
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1051981