Bagoly, Zsolt and Borgonovo, L. and Mészáros, A. and Balázs, Lajos and Horváth, István (2009) Factor analysis of the long gamma-ray bursts. ASTRONOMY AND ASTROPHYSICS, 493. pp. 51-54. ISSN 0004-6361
|
Text
1146870.pdf Download (108kB) | Preview |
Abstract
We study statistically 197 long gamma-ray bursts, detected and measured in detail by the BATSE instrument of the Compton Gamma-Ray Observatory. In the sample 10 variables, describing for any burst the time behavior of the spectra and other quantities, are collected. The factor analysis method is used to find the latent random variables describing the temporal and spectral properties of GRBs. The application of this particular method to this sample indicates that five factors and the $REpk$ spectral variable (the ratio of peak energies in the spectrum) describe the sample satisfactorily. Both the pseudo-redshifts inferred from the variability, and the Amati-relation in its original form, are disfavored.
| Item Type: | Article |
|---|---|
| Subjects: | Q Science / természettudomány > QB Astronomy, Astrophysics / csillagászat, asztrofizika |
| SWORD Depositor: | MTMT SWORD |
| Depositing User: | MTMT SWORD |
| Date Deposited: | 10 Jun 2013 14:22 |
| Last Modified: | 10 Jun 2013 14:22 |
| URI: | http://real.mtak.hu/id/eprint/5539 |
Actions (login required)
 |
Edit Item |
