CaltechAUTHORS
  A Caltech Library Service

Dust Echoes from Gamma-Ray Bursts

Esin, Ann A. and Blandford, Roger (2000) Dust Echoes from Gamma-Ray Bursts. Astrophysical Journal, 534 (2). L151-L154. ISSN 0004-637X. https://resolver.caltech.edu/CaltechAUTHORS:20190604-101130819

[img] PDF - Published Version
See Usage Policy.

74Kb
[img] PDF - Accepted Version
See Usage Policy.

144Kb

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20190604-101130819

Abstract

The deviation from the power-law decline of the optical flux observed in GRB 970228 and GRB 980326 has been used recently to argue in favor of the connection between gamma-ray bursts and supernovae. We consider an alternative explanation for this phenomenon, based on the scattering of a prompt optical burst by 0.1 M☉ dust located beyond its sublimation radius 0.1-1 pc from the burst. In both cases, the optical energy observed at the time of the first detection of the afterglow suffices to produce an echo after ~20-30 days, as observed. Prompt optical monitoring of future bursts and multiband photometry of the afterglows will enable us to test simple models of dust reprocessing quantitatively and to predict source redshift.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1086/312670DOIArticle
https://arxiv.org/abs/astro-ph/0003415arXivDiscussion Paper
ORCID:
AuthorORCID
Blandford, Roger0000-0002-1854-5506
Additional Information:© 2000 The American Astronomical Society. Received 2000 February 15; accepted 2000 March 24; published 2000 May 2. We thank J. Bloom for helpful comments. This work was supported by NASA grant 5-2837, NSF grant AST 99-00866, and a Chandra Postdoctoral Fellowship grant (PF8-10002) awarded by the Chandra X-Ray Center, which is operated by the SAO for NASA under contract NAS8-39073.
Group:TAPIR
Funders:
Funding AgencyGrant Number
NASA5-2837
NSFAST 99-00866
NASA Chandra Postdoctoral FellowshipPF8-10002
NASANAS8-39073
Subject Keywords:dust, extinction—gamma rays: bursts
Issue or Number:2
Record Number:CaltechAUTHORS:20190604-101130819
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190604-101130819
Official Citation:Ann A. Esin and Roger Blandford 2000 ApJ 534 L151
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:96104
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:04 Jun 2019 18:07
Last Modified:03 Oct 2019 21:19

Repository Staff Only: item control page