Spectral Features from Ultrarelativistic Ions in Gamma-Ray Bursts?

Details Spectral Features from Ultrarelativistic Ions in Gamma-Ray Bursts? Spectral Features from Ultrarelativistic Ions in Gamma-Ray Bursts?

1998-04-13

arxiv.org/abs/astro-ph/9804119v2

Astrophys.J. 502 (1998) L105-L108

Astronomy and Astrophysics

Astrophysics

Ap.J. Letters, accepted 6/3/98, updated version from the original submitted 3/25/98, latex (uses aaspp4), 9 pages

Scientific paper

10.1086/311499

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 due to Fe K-edges, which influence the spectrum below the MeV range, leading to a progressively decreasing hardness ratio.

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