Strong correlation between the peak power density in the time domain and the luminosity of long γ-ray bursts

Details Strong correlation between the peak power density in the time domain and the luminosity of long γ-ray bursts Strong correlation between the peak power density in the time domain and the luminosity of long γ-ray bursts

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005cha%26a..29..361y&link_type=abstract

Chinese Astronomy and Astrophysics, Volume 29, Issue 4, p. 361-369.

Astronomy and Astrophysics

Astrophysics

Scientific paper

This work presents a possible luminosity estimator for long γ-ray bursts (GRBs) based on their light curves. We use the method of variability analysis in the time domain to calculate the power density spectrum (PDS) for each of the 12 GRBs with known redshifts observed by CGRO/BATSE. The peak of the power density spectrum P is a measure of the intensity of variability of the given light curve and a strong correlation is found between P and the isotropic peak luminosity L of the GRB. It is a successor to the lag-luminosity relation of Norris et al. (2000) and the variability-luminosity relation of Reichart et al. (2001).

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