Correlation between pulse-width and peak luminosity of single-pulse long gamma-ray bursts
Abstract
With a sample of 21 single-pulse GRBs with redshift measurement and a sample of 65 single-pulse GRBs with pseudo redshift estimated by the luminosity-spectral lag relation, we show that the peak luminosities of GRB pulses are anti-correlated with pulse width, indicating that longer-pulses tend to be dimmer in the gamma-ray band. The anti-correlation is accessible with an internal shock scenario.
- Publication:
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Science China Physics, Mechanics, and Astronomy
- Pub Date:
- January 2010
- DOI:
- 10.1007/s11433-010-0026-0
- Bibcode:
- 2010SCPMA..53S..69D
- Keywords:
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- gamma-rays: bursts;
- gamma-rays: observations