Gamma-ray burst, axion emission and string theory dilaton

• Type: Article in International Scientific Journal
• Date: 1999

Authors

Bertolami, O (Author) Other

Journal

Title: Astroparticle Physics

Vol. 11

Pages: 357-362

ISSN: 0927-6505

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 10 Citations

Scopus - 10 Citations

Other information

Authenticus ID: P-001-3X1

DOI: 10.1016/s0927-6505(99)00005-5

Abstract (EN): The emission of axions from supernovae is an interesting possibility to account for the Gamma-Ray Bursts provided their energy can be effectively converted into electromagnetic energy elsewhere. The connection between supernova and gamma-ray bursts has been recently confirmed by the observed correlation between the burst of April 25, 1998 and the supernova SN1998bw. We argue that the axion conversion into photons can be more efficient if one considers the coupling between an intermediate scale axion and the string theory dilaton along with the inclusion of string loops. We also discuss the way dilaton dynamics may allow for a more effective energy exchange with electromagnetic radiation in the expansion process of fireballs.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6