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

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

Apr 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005acasn..46..117y&link_type=abstract

Acta Astronomica Sinica, vol. 46, no. 2, p. 117-124

Astronomy and Astrophysics

Astronomy

1

Cosmology: Observations, Gamma Rays: Bursts, Gamma Rays: Theory

Scientific paper

This work presents a possible luminosity estimator for the long gamma-ray bursts based on the light curves. We use the methods of temporal variability analysis in time domain to calculate the power density spectrum (PDS) of the 12 γ-ray bursts (GRBs) with known redshifts observed by CGRO/BATSE. The peak of the power density P measures the variability intensity of each light curve and a strong correlation is found between P and the isotropic peak luminosity L. It's a new relationship between the temporal quantities and the luminosities of long GRBs, succeeding the lag-luminosity relation suggested by Norris et al.(2000) and variability-luminosity relation shown by Reichart et al. (2001).

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