Correlative Analysis of GRBs detected by Swift and Suzaku-WAM

Hans Krimm; Kazutaka Yamaoka; Masanori Ohno; Makoto Tashiro; Kaori Onda; Goro Sato; Takanori Sakamoto; Satoshi Sugita

doi:10.1063/1.2943426

Correlative Analysis of GRBs detected by Swift and Suzaku-WAM

Hans Krimm^*, Kazutaka Yamaoka, Masanori Ohno, Makoto Tashiro, Kaori Onda, Goro Sato, Takanori Sakamoto, Satoshi Sugita

^*Corresponding author for this work

Waseda Research Institute for Science and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Since most gamma-ray bursts (GRBs) have a peak energy (Epeak) above the energy range (15-150 keV) of the Burst Alert Telescope (BAT) on Swift, a full understanding of the prompt emission from Swift GRBs requires spectral fits over as broad an energy range as possible. This can be done for bursts which are simultaneously detected by Swift BAT and the Suzaku Wide-band All-Sky Monitor (WAM), which covers the energy range from 50-5000 keV. Since the launch of Suzaku in July 2005, there have been 33 gamma-ray bursts (GRBs) which have triggered both Swift and WAM. A joint BAT-WAM team has cross-calibrated the two instruments using GRBs, and we are now able to perform joint fits on these bursts to determine spectral parameters including Epeak. The results of broad spectral fits allows us to understand the distribution of Epeak for Swift bursts and to calibrate Epeak estimators when Epeak is within the BAT energy range. For those bursts with spectroscopic redshifts, we can calculate the isotropic energy and study various correlations between Epeak and other global burst parameters. Here we present preliminary results of joint Swift/BAT-Suzaku/WAM spectral fits.

Original language	English
Title of host publication	AIP Conference Proceedings
Pages	129-132
Number of pages	4
Volume	1000
DOIs	https://doi.org/10.1063/1.2943426
Publication status	Published - 2008
Event	Santa Fe Conference on Gamma-Ray Bursts 2007, GRB 2007 - Santa Fe, NM Duration: 2007 Nov 5 → 2007 Nov 9

Other

Other	Santa Fe Conference on Gamma-Ray Bursts 2007, GRB 2007
City	Santa Fe, NM
Period	07/11/5 → 07/11/9

Keywords

bursts
gamma rays

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1063/1.2943426

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title = "Correlative Analysis of GRBs detected by Swift and Suzaku-WAM",

abstract = "Since most gamma-ray bursts (GRBs) have a peak energy (Epeak) above the energy range (15-150 keV) of the Burst Alert Telescope (BAT) on Swift, a full understanding of the prompt emission from Swift GRBs requires spectral fits over as broad an energy range as possible. This can be done for bursts which are simultaneously detected by Swift BAT and the Suzaku Wide-band All-Sky Monitor (WAM), which covers the energy range from 50-5000 keV. Since the launch of Suzaku in July 2005, there have been 33 gamma-ray bursts (GRBs) which have triggered both Swift and WAM. A joint BAT-WAM team has cross-calibrated the two instruments using GRBs, and we are now able to perform joint fits on these bursts to determine spectral parameters including Epeak. The results of broad spectral fits allows us to understand the distribution of Epeak for Swift bursts and to calibrate Epeak estimators when Epeak is within the BAT energy range. For those bursts with spectroscopic redshifts, we can calculate the isotropic energy and study various correlations between Epeak and other global burst parameters. Here we present preliminary results of joint Swift/BAT-Suzaku/WAM spectral fits.",

keywords = "bursts, gamma rays",

author = "Hans Krimm and Kazutaka Yamaoka and Masanori Ohno and Makoto Tashiro and Kaori Onda and Goro Sato and Takanori Sakamoto and Satoshi Sugita",

year = "2008",

doi = "10.1063/1.2943426",

language = "English",

isbn = "9780735405332",

volume = "1000",

pages = "129--132",

booktitle = "AIP Conference Proceedings",

note = "Santa Fe Conference on Gamma-Ray Bursts 2007, GRB 2007 ; Conference date: 05-11-2007 Through 09-11-2007",

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TY - GEN

T1 - Correlative Analysis of GRBs detected by Swift and Suzaku-WAM

AU - Krimm, Hans

AU - Yamaoka, Kazutaka

AU - Ohno, Masanori

AU - Tashiro, Makoto

AU - Onda, Kaori

AU - Sato, Goro

AU - Sakamoto, Takanori

AU - Sugita, Satoshi

PY - 2008

Y1 - 2008

N2 - Since most gamma-ray bursts (GRBs) have a peak energy (Epeak) above the energy range (15-150 keV) of the Burst Alert Telescope (BAT) on Swift, a full understanding of the prompt emission from Swift GRBs requires spectral fits over as broad an energy range as possible. This can be done for bursts which are simultaneously detected by Swift BAT and the Suzaku Wide-band All-Sky Monitor (WAM), which covers the energy range from 50-5000 keV. Since the launch of Suzaku in July 2005, there have been 33 gamma-ray bursts (GRBs) which have triggered both Swift and WAM. A joint BAT-WAM team has cross-calibrated the two instruments using GRBs, and we are now able to perform joint fits on these bursts to determine spectral parameters including Epeak. The results of broad spectral fits allows us to understand the distribution of Epeak for Swift bursts and to calibrate Epeak estimators when Epeak is within the BAT energy range. For those bursts with spectroscopic redshifts, we can calculate the isotropic energy and study various correlations between Epeak and other global burst parameters. Here we present preliminary results of joint Swift/BAT-Suzaku/WAM spectral fits.

AB - Since most gamma-ray bursts (GRBs) have a peak energy (Epeak) above the energy range (15-150 keV) of the Burst Alert Telescope (BAT) on Swift, a full understanding of the prompt emission from Swift GRBs requires spectral fits over as broad an energy range as possible. This can be done for bursts which are simultaneously detected by Swift BAT and the Suzaku Wide-band All-Sky Monitor (WAM), which covers the energy range from 50-5000 keV. Since the launch of Suzaku in July 2005, there have been 33 gamma-ray bursts (GRBs) which have triggered both Swift and WAM. A joint BAT-WAM team has cross-calibrated the two instruments using GRBs, and we are now able to perform joint fits on these bursts to determine spectral parameters including Epeak. The results of broad spectral fits allows us to understand the distribution of Epeak for Swift bursts and to calibrate Epeak estimators when Epeak is within the BAT energy range. For those bursts with spectroscopic redshifts, we can calculate the isotropic energy and study various correlations between Epeak and other global burst parameters. Here we present preliminary results of joint Swift/BAT-Suzaku/WAM spectral fits.

KW - bursts

KW - gamma rays

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BT - AIP Conference Proceedings

T2 - Santa Fe Conference on Gamma-Ray Bursts 2007, GRB 2007

Y2 - 5 November 2007 through 9 November 2007

ER -

Correlative Analysis of GRBs detected by Swift and Suzaku-WAM

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