Spectral-lag relations in GRB pulses detected with HETE-2

Makoto Arimoto; Nobuyuki Kawai; Katsuaki Asano; Kevin Hurley; Motoko Suzuki; Yujin E. Nakagawa; Takashi Shimokawabe; Nicolas Vasquez Pazmino; Rie Sato; Masaru Matsuoka; Atsumasa Yoshida; Toru Tamagawa; Yuji Shirasaki; Satoshi Sugita; Ichiro Takahashi; Jean Luc Atteia; Alexandre Pelangeon; Roland Vanderspek; Carlo Graziani; Gregory Prigozhin; Joel Villasenor; J. Garrett Jernigan; Geoffrey B. Crew; Takanori Sakamoto; George R. Ricker; Stanford E. Woosley; Nat Butler; Alan Levine; John P. Doty; Timothy Q. Donaghy; Donald Q. Lamb; Edward Fenimore; Mark Galassi; Michel Boer; Jean Pascal Dezalay; Jean François Olive; João Braga; Ravi Manchanda; Graziella Pizzichini

doi:10.1093/pasj/62.2.487

Spectral-lag relations in GRB pulses detected with HETE-2

Makoto Arimoto, Nobuyuki Kawai, Katsuaki Asano, Kevin Hurley, Motoko Suzuki, Yujin E. Nakagawa, Takashi Shimokawabe, Nicolas Vasquez Pazmino, Rie Sato, Masaru Matsuoka, Atsumasa Yoshida, Toru Tamagawa, Yuji Shirasaki, Satoshi Sugita, Ichiro Takahashi, Jean Luc Atteia, Alexandre Pelangeon, Roland Vanderspek, Carlo Graziani, Gregory PrigozhinJoel Villasenor, J. Garrett Jernigan, Geoffrey B. Crew, Takanori Sakamoto, George R. Ricker, Stanford E. Woosley, Nat Butler, Alan Levine, John P. Doty, Timothy Q. Donaghy, Donald Q. Lamb, Edward Fenimore, Mark Galassi, Michel Boer, Jean Pascal Dezalay, Jean François Olive, João Braga, Ravi Manchanda, Graziella Pizzichini

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

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 (6-25keV) 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 me 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.

Original language	English (US)
Pages (from-to)	487-499
Number of pages	13
Journal	Publications of the Astronomical Society of Japan
Volume	62
Issue number	2
DOIs	https://doi.org/10.1093/pasj/62.2.487
State	Published - Apr 25 2010
Externally published	Yes

Keywords

Gamma rays: Bursts
Gamma rays: observations
Radiation mechanisms: non-thermal

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1093/pasj/62.2.487

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Arimoto, M., Kawai, N., Asano, K., Hurley, K., Suzuki, M., Nakagawa, Y. E., Shimokawabe, T., Pazmino, N. V., Sato, R., Matsuoka, M., Yoshida, A., Tamagawa, T., Shirasaki, Y., Sugita, S., Takahashi, I., Atteia, J. L., Pelangeon, A., Vanderspek, R., Graziani, C., ... Pizzichini, G. (2010). Spectral-lag relations in GRB pulses detected with HETE-2. Publications of the Astronomical Society of Japan, 62(2), 487-499. https://doi.org/10.1093/pasj/62.2.487

Arimoto, M, Kawai, N, Asano, K, Hurley, K, Suzuki, M, Nakagawa, YE, Shimokawabe, T, Pazmino, NV, Sato, R, Matsuoka, M, Yoshida, A, Tamagawa, T, Shirasaki, Y, Sugita, S, Takahashi, I, Atteia, JL, Pelangeon, A, Vanderspek, R, Graziani, C, Prigozhin, G, Villasenor, J, Jernigan, JG, Crew, GB, Sakamoto, T, Ricker, GR, Woosley, SE, Butler, N, Levine, A, Doty, JP, Donaghy, TQ, Lamb, DQ, Fenimore, E, Galassi, M, Boer, M, Dezalay, JP, Olive, JF, Braga, J, Manchanda, R & Pizzichini, G 2010, 'Spectral-lag relations in GRB pulses detected with HETE-2', Publications of the Astronomical Society of Japan, vol. 62, no. 2, pp. 487-499. https://doi.org/10.1093/pasj/62.2.487

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title = "Spectral-lag relations in GRB pulses detected with HETE-2",

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 (6-25keV) 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, 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 found that me 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.",

keywords = "Gamma rays: Bursts, Gamma rays: observations, Radiation mechanisms: non-thermal",

author = "Makoto Arimoto and Nobuyuki Kawai and Katsuaki Asano and Kevin Hurley and Motoko Suzuki and Nakagawa, {Yujin E.} and Takashi Shimokawabe and Pazmino, {Nicolas Vasquez} and Rie Sato and Masaru Matsuoka and Atsumasa Yoshida and Toru Tamagawa and Yuji Shirasaki and Satoshi Sugita and Ichiro Takahashi and Atteia, {Jean Luc} and Alexandre Pelangeon and Roland Vanderspek and Carlo Graziani and Gregory Prigozhin and Joel Villasenor and Jernigan, {J. Garrett} and Crew, {Geoffrey B.} and Takanori Sakamoto and Ricker, {George R.} and Woosley, {Stanford E.} and Nat Butler and Alan Levine and Doty, {John P.} and Donaghy, {Timothy Q.} and Lamb, {Donald Q.} and Edward Fenimore and Mark Galassi and Michel Boer and Dezalay, {Jean Pascal} and Olive, {Jean Fran{\c c}ois} and Jo{\~a}o Braga and Ravi Manchanda and Graziella Pizzichini",

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doi = "10.1093/pasj/62.2.487",

language = "English (US)",

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T1 - Spectral-lag relations in GRB pulses detected with HETE-2

AU - Arimoto, Makoto

AU - Kawai, Nobuyuki

AU - Asano, Katsuaki

AU - Hurley, Kevin

AU - Suzuki, Motoko

AU - Nakagawa, Yujin E.

AU - Shimokawabe, Takashi

AU - Pazmino, Nicolas Vasquez

AU - Sato, Rie

AU - Matsuoka, Masaru

AU - Yoshida, Atsumasa

AU - Tamagawa, Toru

AU - Shirasaki, Yuji

AU - Sugita, Satoshi

AU - Takahashi, Ichiro

AU - Atteia, Jean Luc

AU - Pelangeon, Alexandre

AU - Vanderspek, Roland

AU - Graziani, Carlo

AU - Prigozhin, Gregory

AU - Villasenor, Joel

AU - Jernigan, J. Garrett

AU - Crew, Geoffrey B.

AU - Sakamoto, Takanori

AU - Ricker, George R.

AU - Woosley, Stanford E.

AU - Butler, Nat

AU - Levine, Alan

AU - Doty, John P.

AU - Donaghy, Timothy Q.

AU - Lamb, Donald Q.

AU - Fenimore, Edward

AU - Galassi, Mark

AU - Boer, Michel

AU - Dezalay, Jean Pascal

AU - Olive, Jean François

AU - Braga, João

AU - Manchanda, Ravi

AU - Pizzichini, Graziella

PY - 2010/4/25

Y1 - 2010/4/25

N2 - Using a pulse-fit method, we investigated the spectral lags between the traditional gamma-ray band (50-400 keV) and the X-ray band (6-25keV) 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, 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 found that me 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.

AB - Using a pulse-fit method, we investigated the spectral lags between the traditional gamma-ray band (50-400 keV) and the X-ray band (6-25keV) 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, 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 found that me 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.

KW - Gamma rays: Bursts

KW - Gamma rays: observations

KW - Radiation mechanisms: non-thermal

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M3 - Article

AN - SCOPUS:77953341742

SN - 0004-6264

VL - 62

SP - 487

EP - 499

JO - Publications of the Astronomical Society of Japan

JF - Publications of the Astronomical Society of Japan

IS - 2

ER -

Spectral-lag relations in GRB pulses detected with HETE-2

Abstract

Keywords

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