Power density spectra of two classes of long GAMMA-Ray bursts

Details Power density spectra of two classes of long GAMMA-Ray bursts Power density spectra of two classes of long GAMMA-Ray bursts

Nov 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002acasn..43..341s&link_type=abstract

Acta Astronomica Sinica, vol.43, no.4, p. 341-346

Astronomy and Astrophysics

Astronomy

1

Gamma Rays: Bursts, Gamma Rays: Theory

Scientific paper

Averaged Power Density Spectra (PDSs) of two classes of long gamma-ray bursts classified from neural network analysis by Balastegui et al.(2001) recently are investigated. The PDSs of two classes both follow a power law in wide frequency range with approximately the same slope, which indicates a process with a self-similar temporal property may underlie in emission mechanisms of the both classes. The two classes of bursts are divided into groups according to their brightness and spectral hardness distributions respectively and each group's PDS is calculated. PDSs of the two classes both are flatten with increasing burst brightness and hardness respectively.

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