other query modes : |
Identifier query |
Coordinate query |
Criteria query |
Reference query |
Basic query |
Script submission |
TAP |
Output options |
Object types |
Help |
2000ApJ...541L...9K - Astrophys. J., 541, L9-L12 (2000/September-3)
Steepening of afterglow decay for jets interacting with stratified media.
KUMAR P. and PANAITESCU A.
Abstract (from CDS):
The light curve for the afterglow of GRB 990510, for which an increase in β of approximately 1.35 was observed on a timescale of 3 days, cannot be explained by only the sideways expansion and the edge effects in a jet in a uniform interstellar medium–the increase in β is too large and too rapid. However, the passage of the cooling or synchrotron peak frequencies through the observing band at about 0.1-1 day together with jet edge effect explains the observed data. The jet opening angle is found to be ∼5°, and the energy in the explosion to be about 1051 ergs.
Abstract Copyright: ∼
Journal keyword(s): Gamma Rays: Bursts - Gamma Rays: Theory
Simbad objects: 4
To bookmark this query, right click on this link: simbad:2000ApJ...541L...9K and select 'bookmark this link' or equivalent in the popup menu