Abstract
We discuss the formation of spectral features in the decelerating ejecta of gamma-ray bursts, including the possible effect of inhomogeneities. These should lead to blueshifted and broadened absorption edges and resonant features, especially from H and He. An external neutral ISM could produce detectable H and He, as well as Fe X-ray absorption edges and lines. Hypernova scenarios may be diagnosed by Fe Ka and H Lyα emission lines.
| Original language | English (US) |
|---|---|
| Pages (from-to) | L10-L14 |
| Journal | Monthly Notices of the Royal Astronomical Society |
| Volume | 299 |
| Issue number | 1 |
| DOIs | |
| State | Published - Sep 1 1998 |
All Science Journal Classification (ASJC) codes
- Astronomy and Astrophysics
- Space and Planetary Science