Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aspc..312..142v&link_type=abstract
Third Rome Workshop on Gamma-Ray Bursts in the Afterglow Era ASP Conference Series, Volume 312, Proceedings of the conference he
Astronomy and Astrophysics
Astronomy
Scientific paper
Bursts that show maximum or exclusive emission in the X-ray may hide object at very high redshift. Measuring the redshift of bursts without optical counterparts would lead to a better comprehension of the nature and evolution of GRBs and probe the universe at high redshift. Previous studies have shown the existence of a relation between the complexity of the GRBs lightcurves and the Peak Luminosity in the gamma ray energy range. Here we define Variability in the X-ray energy range and we measure it using the BeppoSAX Wide Field Cameras data. We find a relation between the Variability in the energy range 2-26keV and the intrinsic peak luminosity of the bursts.
Costa Edgar
Soffitta Paolo
Vetere L.
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