Mathematics – Logic
Scientific paper
Sep 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aipc..526..145l&link_type=abstract
GAMMA-RAY BURSTS: 5th Huntsville Symposium. AIP Conference Proceedings, Volume 526, pp. 145-149 (2000).
Mathematics
Logic
Observational Cosmology, Gamma-Ray Sources, Gamma-Ray Bursts, Distances, Redshifts, Radial Velocities, Spatial Distribution Of Galaxies
Scientific paper
We examine the association between the peak of the νFν spectrum of gamma ray bursts, Ep, and the burst's energy fluence. Because bursts near the detector threshold are not usually able to provide reliable spectral parameters, we analyze the results for the brightest bursts in which we can better understand the selection effects relevant to Ep and burst strength. We find that there is a strong correlation between total fluence and Ep. We discuss these results in terms of both cosmological and intrinsic effects. In particular, we show that for realistic distributions of the burst parameters, cosmological expansion alone cannot account for the correlation between Ep and total fluence; the observed correlation is likely a result of an intrinsic relation between the burst rest-frame peak energy and the total radiated energy, as expected in an internal shock model. .
Lloyd Nicole M.
Mallozzi Robert S.
Petrosian Vahe
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