Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aipc.1358...21g&link_type=abstract
GAMMA RAY BURSTS 2010. AIP Conference Proceedings, Volume 1358, pp. 21-24 (2011).
Astronomy and Astrophysics
Astrophysics
Redshift, Brightness, Astrophysical Jets, Detonation Waves, Distances, Redshifts, Radial Velocities, Spatial Distribution Of Galaxies, Magnitudes And Colors, Luminosities, Jets And Bursts, Galactic Winds And Fountains, Shock And Blast Waves, Sonic Boom
Scientific paper
Using the first 2 years of data on Fermi/GBM GRBs to be published in a comprehensive spectral catalog, we investigate the Epeak/Fluence ratio (energy ratio) and Epeak-Fluence relation for GBM bursts. As has been shown with CGRO/BATSE data, this relation gives insight into a fundamental discriminator between long and short bursts as well as the dispersion of possible collimation angles for the burst jets. The same relation can be used to show how bursts without a measured redshift compare to the two main Epeak-Eiso correlations: the Amati and Ghirlanda relations. Finally, a study of the correlation between the energy ratio and the luminosity distance will be presented, as it can be shown that the energy ratio is a measure of the luminosity distance of the GRB.
Goldstein Adam
Preece Rob D.
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