Astronomy and Astrophysics – Astrophysics
Scientific paper
2005-09-21
Astrophys.J.642:L153-L156,2006
Astronomy and Astrophysics
Astrophysics
Replaced by the version accepted in ApJ Letters (to appear in April/May 2006); 4 pages, 3 figures
Scientific paper
10.1086/504712
We present the results of our investigation of the multiwavelength data on HESS J1303-631, an unidentified TeV source serendipitously discovered in the Galactic plane by the HESS collaboration. These results strongly suggest the identification of this particular source as the remnant of a Gamma-Ray Burst (GRB) that happened some few tens of thousands years ago in our Galaxy at a distance on the order of 10 kpc from us. We show, through detailed calculations of particle diffusion, interaction and radiation processes of relativistic particles in the interstellar medium, that it is possible for a GRB remnant (GRBR) to be a strong TeV emitter with no observable synchrotron emission. We predict spectral and spatial signatures that would unambiguously distinguish GRBRs from ordinary supernova remnants, including: (1) large energy budgets inferred from their TeV emission, but at the same time, (2) suppressed fluxes in the radio through GeV wavebands; (3) extended center-filled emission with an energy-dependent spatial profile; and (4) a possible elongation in the direction of the past pair of GRB jets. While GRBRs can best be detected by ground-based gamma-ray detectors, the future GLAST mission will play a crucial role in confirming the predicted low level of GeV emission.
Atoyan Armen
Buckley Jeremiah
Krawczynski Henric
No associations
LandOfFree
A gamma-ray burst remnant in our Galaxy: HESS J1303-631 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A gamma-ray burst remnant in our Galaxy: HESS J1303-631, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A gamma-ray burst remnant in our Galaxy: HESS J1303-631 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-487190