Spectral Lag Relations in GRB Pulses Detected with HETE-2

Details Spectral Lag Relations in GRB Pulses Detected with HETE-2 Spectral Lag Relations in GRB Pulses Detected with HETE-2

2010-02-20

arxiv.org/abs/1002.3849v2

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

13 pages, 9 figures, accepted for the publication in PASJ (minor corrections)

Scientific paper

Using a pulse-fit method, we investigate the spectral lags between the traditional gamma-ray band (50-400 keV) and the X-ray band (6-25 keV) for 8 GRBs with known redshifts (GRB 010921, GRB 020124, GRB 020127, GRB 021211, GRB 030528, GRB 040924, GRB 041006, GRB 050408) detected with the WXM and FREGATE instruments aboard the HETE-2 satellite. We find several relations for the individual GRB pulses between the spectral lag and other observables, such as the luminosity, pulse duration, and peak energy (Epeak). The obtained results are consistent with those for BATSE, indicating that the BATSE correlations are still valid at lower energies (6-25 keV). Furthermore, we find that the photon energy dependence for the spectral lags can reconcile the simple curvature effect model. We discuss the implication of these results from various points of view.

Affiliated with

Also associated with

No associations

Rating

Spectral Lag Relations in GRB Pulses Detected with HETE-2 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Spectral Lag Relations in GRB Pulses Detected with HETE-2, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectral Lag Relations in GRB Pulses Detected with HETE-2 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-692409