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

被引：17

作者：

Arimoto, Makoto ^{[1
]}

Kawai, Nobuyuki ^{[1
]}

Asano, Katsuaki ^{[1
]}

Hurley, Kevin ^{[2
]}

Suzuki, Motoko ^{[3
]}

Nakagawa, Yujin E. ^{[4
]}

Shimokawabe, Takashi ^{[1
]}

Pazmino, Nicolas Vasquez ^{[1
]}

Sato, Rie ^{[5
]}

Matsuoka, Masaru ^{[3
]}

Yoshida, Atsumasa ^{[6
]}

Tamagawa, Toru ^{[4
]}

Shirasaki, Yuji ^{[7
]}

Sugita, Satoshi ^{[6
]}

Takahashi, Ichiro ^{[6
]}

Atteia, Jean-Luc ^{[8
]}

Pelangeon, Alexandre ^{[8
]}

Vanderspek, Roland ^{[9
]}

Graziani, Carlo ^{[11
]}

Prigozhin, Gregory ^{[9
]}

Villasenor, Joel ^{[9
]}

Jernigan, J. Garrett ^{[2
]}

Crew, Geoffrey B. ^{[9
]}

Sakamoto, Takanori ^{[12
]}

Ricker, George R. ^{[9
]}

Woosley, Stanford E. ^{[16
]}

Butler, Nat ^{[2
]}

Levine, Alan ^{[9
]}

Doty, John P. ^{[9
,10
]}

Donaghy, Timothy Q. ^{[11
]}

Lamb, Donald Q. ^{[11
]}

Fenimore, Edward ^{[15
]}

Galassi, Mark ^{[15
]}

Boer, Michel ^{[17
]}

Dezalay, Jean-Pascal ^{[13
]}

Olive, Jean-Francois ^{[13
]}

Braga, Joao ^{[18
]}

Manchanda, Ravi ^{[19
]}

Pizzichini, Graziella ^{[14
]}

机构：

[1] Tokyo Inst Technol, Dept Phys, Meguro Ku, Tokyo 1528551, Japan

[2] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA

[3] Japan Aerosp Explorat Agcy JAXA, Tsukuba, Ibaraki 3058505, Japan

[4] RIKEN, Wako, Saitama 3510198, Japan

[5] Inst Space & Astronaut Sci JAXA, Chuo Ku, Sagamihara, Kanagawa 2528510, Japan

[6] Aoyama Gakuin Univ, Dept Math & Phys, Chuo Ku, Sagamihara, Kanagawa 2528558, Japan

[7] Natl Inst Nat Sci, Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan

[8] Univ Toulouse, CNRS, LATT, F-31400 Toulouse, France

[9] MIT, Ctr Space Res, Cambridge, MA 02139 USA

[10] Noqsi Aerosp Ltd, Pine, CO 80470 USA

[11] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA

[12] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[13] Ctr Etud Spatiale Rayonnements, F-31028 Toulouse, France

[14] IASF Bologna, Ist Nazl Astrofis, I-40129 Bologna, Italy

[15] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[16] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA

[17] Observ Haute Provence, CNRS, OAMP, F-04870 St Michel lObservatoire, France

[18] Inst Nacl Pesquisas Espaciais, BR-12227010 Sao Jose Dos Campos, Brazil

[19] Tata Inst Fundamental Res, Dept Astron & Astrophys, Bombay 400005, Maharashtra, India

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN | 2010年 / 62卷 / 02期

关键词：

gamma rays: bursts; gamma rays: observations; radiation mechanisms: non-thermal; GAMMA-RAY BURSTS; PEAK LUMINOSITY; TEMPORAL PROFILES; LONG-LAG; ENERGY; FIREBALLS; DURATION; DEPENDENCE; AFTERGLOW; REDSHIFT;

D O I：

10.1093/pasj/62.2.487

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using a pulse-tit 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, ORB 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 ORB 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.

引用

页码：487 / 499

页数：13

共 30 条

[1] BATSE OBSERVATIONS OF GAMMA-RAY BURST SPECTRA .1. SPECTRAL DIVERSITY [J].