Suzaku observation of TeV SNR RX J1713.7-3946

Tadayuki Takahashi; Takaaki Tanaka; Yasunobu Uchiyama; Junko S. Hiraga; Kazuhiro Nakazawa; Shin Watanabe; Aya Bamba; John P. Hughes; Hideaki Katagiri; Jun Kataoka; Motohide Kokubun; Katsuji Koyama; Koji Mori; Robert Petre; Hiromitsu Takahashi; Yoko Tsuboi

doi:10.1143/PTPS.169.157

Suzaku observation of TeV SNR RX J1713.7-3946

Tadayuki Takahashi^*, Takaaki Tanaka, Yasunobu Uchiyama, Junko S. Hiraga, Kazuhiro Nakazawa, Shin Watanabe, Aya Bamba, John P. Hughes, Hideaki Katagiri, Jun Kataoka, Motohide Kokubun, Katsuji Koyama, Koji Mori, Robert Petre, Hiromitsu Takahashi, Yoko Tsuboi

^*Corresponding author for this work

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

Abstract

We report on results from Suzaku broadband X-ray observations of the Galactic supernova remnant (SNR) RX J1713.7-3946 with an energy coverage of 0.4-40 keV. With a sensitive hard X-ray measurement from the HXD PIN on board Suzaku, we determine the hard X-ray spectrum in the 12-40 keV range to be described by a power law with photon index Γ = 3.2 ± 0.2, significantly steeper than the soft X-ray index of Γ = 2.4 ± 0.05 measured previously with ASCA and other missions. We find that a simple power law fails to describe the full spectral range of 0.4-40 keV and instead a cutoff power law with hard index Γ = 1.96 ± 0.05 and high energy cutoff ε_c = 9 ± 1 keV provides an excellent fit over the full bandpass.

Original language	English
Pages (from-to)	157-161
Number of pages	5
Journal	Progress of Theoretical Physics Supplement
Issue number	169
DOIs	https://doi.org/10.1143/PTPS.169.157
Publication status	Published - 2007
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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@article{727aa3297f8740848e5bd28f25094333,

title = "Suzaku observation of TeV SNR RX J1713.7-3946",

abstract = "We report on results from Suzaku broadband X-ray observations of the Galactic supernova remnant (SNR) RX J1713.7-3946 with an energy coverage of 0.4-40 keV. With a sensitive hard X-ray measurement from the HXD PIN on board Suzaku, we determine the hard X-ray spectrum in the 12-40 keV range to be described by a power law with photon index Γ = 3.2 ± 0.2, significantly steeper than the soft X-ray index of Γ = 2.4 ± 0.05 measured previously with ASCA and other missions. We find that a simple power law fails to describe the full spectral range of 0.4-40 keV and instead a cutoff power law with hard index Γ = 1.96 ± 0.05 and high energy cutoff εc = 9 ± 1 keV provides an excellent fit over the full bandpass.",

author = "Tadayuki Takahashi and Takaaki Tanaka and Yasunobu Uchiyama and Hiraga, {Junko S.} and Kazuhiro Nakazawa and Shin Watanabe and Aya Bamba and Hughes, {John P.} and Hideaki Katagiri and Jun Kataoka and Motohide Kokubun and Katsuji Koyama and Koji Mori and Robert Petre and Hiromitsu Takahashi and Yoko Tsuboi",

year = "2007",

doi = "10.1143/PTPS.169.157",

language = "English",

pages = "157--161",

journal = "Progress of Theoretical Physics",

issn = "0033-068X",

publisher = "Yukawa Institute for Theoretical Physics",

number = "169",

}

TY - JOUR

T1 - Suzaku observation of TeV SNR RX J1713.7-3946

AU - Takahashi, Tadayuki

AU - Tanaka, Takaaki

AU - Uchiyama, Yasunobu

AU - Hiraga, Junko S.

AU - Nakazawa, Kazuhiro

AU - Watanabe, Shin

AU - Bamba, Aya

AU - Hughes, John P.

AU - Katagiri, Hideaki

AU - Kataoka, Jun

AU - Kokubun, Motohide

AU - Koyama, Katsuji

AU - Mori, Koji

AU - Petre, Robert

AU - Takahashi, Hiromitsu

AU - Tsuboi, Yoko

PY - 2007

Y1 - 2007

N2 - We report on results from Suzaku broadband X-ray observations of the Galactic supernova remnant (SNR) RX J1713.7-3946 with an energy coverage of 0.4-40 keV. With a sensitive hard X-ray measurement from the HXD PIN on board Suzaku, we determine the hard X-ray spectrum in the 12-40 keV range to be described by a power law with photon index Γ = 3.2 ± 0.2, significantly steeper than the soft X-ray index of Γ = 2.4 ± 0.05 measured previously with ASCA and other missions. We find that a simple power law fails to describe the full spectral range of 0.4-40 keV and instead a cutoff power law with hard index Γ = 1.96 ± 0.05 and high energy cutoff εc = 9 ± 1 keV provides an excellent fit over the full bandpass.

AB - We report on results from Suzaku broadband X-ray observations of the Galactic supernova remnant (SNR) RX J1713.7-3946 with an energy coverage of 0.4-40 keV. With a sensitive hard X-ray measurement from the HXD PIN on board Suzaku, we determine the hard X-ray spectrum in the 12-40 keV range to be described by a power law with photon index Γ = 3.2 ± 0.2, significantly steeper than the soft X-ray index of Γ = 2.4 ± 0.05 measured previously with ASCA and other missions. We find that a simple power law fails to describe the full spectral range of 0.4-40 keV and instead a cutoff power law with hard index Γ = 1.96 ± 0.05 and high energy cutoff εc = 9 ± 1 keV provides an excellent fit over the full bandpass.

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EP - 161

JO - Progress of Theoretical Physics

JF - Progress of Theoretical Physics

IS - 169

ER -

Suzaku observation of TeV SNR RX J1713.7-3946

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