Suzaku observations of HESS J1616-508: Evidence for a dark particle accelerator

Hironori Matsumoto*, Masaru Ueno, Aya Bamba, Yoshiaki Hyodo, Hideyuki Mori, Hideki Uchiyama, Takeshi Go Tsuru, Katsuji Koyama, Jun Kataoka, Hideaki Katagiri, Tadayuki Takahashi, Junko Hiraga, Shigeo Yamauchi, John P. Hughes, Atsushi Senda, Motohide Kokubun, Takayoshi Kohmura, Frederick S. Porter

*この研究の対応する著者

研究成果査読

33 被引用数 (Scopus)

抄録

We observed the bright unidentified TeV γ-ray source HESS J1616-508 with the X-ray Imaging Spectrometers onboard the Suzaku satellite. No X-ray counterpart was found to a limiting flux of 3.1 × 10-13 ergs-1 cm-2 in the 2-10keV band, which is some 60-times below the γ-ray flux in the 1-10 TeV band. This object is bright in TeV γ-rays, but very dim in the X-ray band, and thus is one of the best examples in the Galaxy of a "dark particle accelerator." We also detected soft thermal emission with kT ∼ 0.3-0.6keV near the location of HESS J1616-508. This may be due to a dust-grain scattering halo from the nearby bright supernova remnant RCW 103.

本文言語English
ページ(範囲)S199-S208
ジャーナルPublications of the Astronomical Society of Japan
59
1 SPEC. ISS.
DOI
出版ステータスPublished - 2007
外部発表はい

ASJC Scopus subject areas

  • 天文学と天体物理学
  • 宇宙惑星科学

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