Spectral Features from Ultrarelativistic Ions in Gamma-Ray Bursts?
Open Access
- 1 August 1998
- journal article
- research article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 502 (2) , L105-L108
- https://doi.org/10.1086/311499
Abstract
Gamma-ray burst outflows may entrain small blobs or filaments of dense, highly ionized metal-rich material. Such inhomogeneities, accelerated by the flow to Lorentz factors in the range 10-100, could have a significant coverage factor and give rise to broad features, especially because of Fe K edges, which influence the spectrum below the MeV range, leading to a progressively decreasing hardness ratio.Keywords
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