Arimoto 2010 HETE-II几个暴的时延关系统计

主要内容:

8 GRBs with known redshifts (GRB 010921, GRB
020124, GRB 020127, GRB 021211, GRB 030528, GRB 040924, GRB 041006, GRB 050408)

时延的关系和BATSE的暴一样，说明这个关系可以延伸到低能一些。（HETE-II比BATSE能段低。）

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Title:		Spectral-Lag Relations in GRB Pulses Detected with HETE-2
Authors:		Arimoto, Makoto; Kawai, Nobuyuki; Asano, Katsuaki; Hurley, Kevin; Suzuki, Motoko; Nakagawa, Yujin E.; Shimokawabe, Takashi; Pazmino, Nicolas Vasquez; Sato, Rie; Matsuoka, Masaru; Yoshida, Atsumasa; Tamagawa, Toru; Shirasaki, Yuji; Sugita, Satoshi; Takahashi, Ichiro; Atteia, Jean-Luc; Pelangeon, Alexandre; Vanderspek, Roland; Graziani, Carlo; Prigozhin, Gregory; Villasenor, Joel; Jernigan, J. Garrett; Crew, Geoffrey B.; Sakamoto, Takanori; Ricker, George R.; Woosley, Stanford E.; Butler, Nat; Levine, Alan; Doty, John P.; Donaghy, Timothy Q.; Lamb, Donald Q.; Fenimore, Edward; Galassi, Mark; Boer, Michel; Dezalay, Jean-Pascal; Olive, Jean-François; Braga, João; Manchanda, Ravi; Pizzichini, Graziella
Affiliation:		AA(Department of Physics, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551; arimoto@hp.phys.titech.ac.jp))
Publication:		Publications of the Astronomical Society of Japan, Vol.62, No.2, pp.487--499 (PASJ Homepage)
Publication Date:		04/2010
Origin:		PASJ
Keywords:		gamma rays: bursts, gamma rays: observations, radiation mechanisms: non-thermal
Bibliographic Code:		2010PASJ...62..487A

Abstract

Using a pulse-fit method, we investigated 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, and GRB 050408), detected with the WXM and FREGATE instruments aboard the HETE-2 satellite. We found several relations for individual GRB pulses between the spectral lag and other observables, such as the luminosity, pulse duration, and peak energy, E_peak. 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 found that the photon energy dependence for the spectral lags can be reconciled with the simple curvature effect model. We discuss the implications of these results from various points of view.

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