EDP Sciences
Free Access
Issue
A&A
Volume 422, Number 2, August I 2004
Page(s) 381 - 389
Section Astrophysical processes
DOI https://doi.org/10.1051/0004-6361:20034462


A&A 422, 381-389 (2004)
DOI: 10.1051/0004-6361:20034462

On the origin of X-ray flashes

S. Dado1, A. Dar1, 2 and A. De Rújula2

1  Physics Department and Space Research Institute, Technion, Haifa 32000, Israel
    e-mail: arnon@physics.technion.ac.il
2  Theory Division, CERN, 1211 Geneva 23, Switzerland

(Received 7 October 2003 / Accepted 12 February 2004 )

Abstract
We use the cannonball (CB) model of gamma ray bursts (GRBs) and their afterglows (AGs) to analyze the observational data on X-ray flashes (XRFs) and their AGs. We show that the observations support the CB-model interpretation that XRFs, like GRBs, are produced by the explosions of core-collapse supernovae (SNe) akin to SN1998bw, by jets of highly-relativistic CBs. The XRFs and GRBs are intrinsically identical objects, but the XRFs are viewed from angles (relative to the jet direction) which are typically a few times larger than the typical viewing angles of "classical", long-duration GRBs. There should be XRFs, not observed so far, with durations similar to those of short GRBs.


Key words: X-rays: bursts -- $\gamma$-rays: bursts -- stars: supernovae: general

SIMBAD Objects



© ESO 2004

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.