Computer Science
Scientific paper
Jul 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005ncimc..28..497d&link_type=abstract
Il Nuovo Cimento C, vol. 28, Issue 4, p.497
Computer Science
Scientific paper
The X-Ray Flashes (XRFs) and X-Ray Riches (XRRs) are two subclasses of Gamma-Ray Bursts (GRBs), which have respectively no detection in the gamma-ray energy and very faint gamma to X-ray fluence. To investigate their nature we compiled a sample of 54 events observed by BeppoSAX and HETE-2, available in literature and from the web. To classify XRRs/XRFs for those two experiments, we adopted the same spectral hardness ratio. We studied their prompt emission in the X and γ range and their spectral parameters and compared them with those of GRBs. We find XRRs/XRFs are characterized by a significantly smaller value of E peak while the spectral slopes α and β are quite similar. We analysed also the optical and X-ray afterglow fluxes and their ratio and compared them with that obtained for GRBs. We find that the distribution of X-ray flux of XRR/XRF afterglow is consistent with that of GRBs, which is incompatible with the off-axis model. For example, in the inhomogeneous jet model it implies that the observer angle for an XRR/XRF is at most 2°. It is also not explained by the high redshift scenario.
D'Alessio V.
Piro Luigi
No associations
LandOfFree
General properties of X-Ray Riches and X-Ray Flashes in comparison with Gamma-Ray Bursts 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 General properties of X-Ray Riches and X-Ray Flashes in comparison with Gamma-Ray Bursts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and General properties of X-Ray Riches and X-Ray Flashes in comparison with Gamma-Ray Bursts will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1823613