Testing the GRB Variability/Peak Luminosity correlation using the pseudo-redshifts of a large sample of BATSE GRBs
| dc.creator | Guidorzi, Cristiano | |
| dc.date | 2005-08-23 | |
| dc.date.accessioned | 2026-07-07T08:26:11Z | |
| dc.date.available | 2026-07-07T08:26:11Z | |
| dc.description | We test the correlation found by Reichart et al. (2001) between time variability and peak luminosity of Gamma-Ray Bursts (GRBs). Recently Guidorzi et al. (2005) found that this still holds for a sample of 32 GRBs with spectroscopic redshift, although with a larger scatter than that originally found by Reichart et al. (2001). However Guidorzi et al. (2005) also found that a power law does not provide a good description of that. We report on the same test performed on a sample of 551 BATSE GRBs with a significant measure of variability assuming the pseudo-redshifts derived by Band et al. (2004) (1186 GRBs) through the anticorrelation between spectral lag and peak luminosity. We still find a correlation between variability as defined by Reichart et al. (2001) and peak luminosity with higher significance. However, this subsample of BATSE GRBs show a higher scatter around the best-fitting power law than that found by Reichart et al. (2001) in the variability/peak luminosity space. This is in agreement with the result found by Guidorzi et al. (2005) on a sample of 32 GRBs with measured redshift. These results confirm that a power law does not provide a satisfactory description for all the GRBs, in contrast with the original findings by Reichart et al. (2001). | |
| dc.description | MNRAS, accepted, 6 pages, 4 figures | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0508483 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0508483 | |
| dc.identifier | Mon.Not.Roy.Astron.Soc. 364 (2005) 163-168 | |
| dc.identifier | doi:10.1111/j.1365-2966.2005.09545.x | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/136854 | |
| dc.subject | Astrophysics | |
| dc.title | Testing the GRB Variability/Peak Luminosity correlation using the pseudo-redshifts of a large sample of BATSE GRBs | |
| dc.type | text |