Published September 8, 2000
| Published
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Photospheres, Comptonization and X-ray lines in gamma-ray bursts
- Creators
- Mészáros, P.
Abstract
Steep X-ray spectral slopes, X-ray excesses and preferred spectral energy breaks in the 0.1–0.3 MeV range are discussed as the possible consequences of the photospheric component of the GRB relativistic outflow, and of pair breakdown in internal shocks leading to Comptonization on semi-relativistic electrons or MHD waves. We also discuss the X-ray and UV spectra of GRB afterglows occurring in a dense environment characteristic of massive stellar progenitors, including their ability to produce detectable Fe or other metallic line features.
Additional Information
© 2000 American Institute of Physics. Issue Date: 8 September 2000. I am grateful to M.J. Rees, C. Weth and T. Kallman for stimulating collaborations, NASA NAG-5 2857, the Guggenheim Foundation and the Division of Physics, Math & Astronomy, the Astronomy Visitor and the Merle Kingsley funds at Caltech for support.Attached Files
Published - MESaipcp00b.pdf
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Additional details
- Eprint ID
- 28234
- Resolver ID
- CaltechAUTHORS:20111129-153851270
- NAG-5 2857
- NASA
- Guggenheim Foundation
- Astronomy Visitor
- Caltech Merle Kingsley Funds
- Created
-
2011-11-30Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field
- Series Name
- AIP Conference Proceedings
- Series Volume or Issue Number
- 526