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

• Matsumoto, Hironori

• Ueno, Masaru

• Bamba, Aya

• Hyodo, Yoshiaki

• Mori, Hideyuki

• Uchiyama, Hideki

• Tsuru, Takeshi Go

• Koyama, Katsuji

• Kataoka, Jun

• Katagiri, Hideaki

• Takahashi, Tadayuki

• Hiraga, Junko

• Yamauchi, Shigeo

• Hughes, John P.

• Senda, Atsushi

• Kokubun, Motohide

• Kohmura, Takayoshi

• Porter, Frederick S.

Abstract

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 erg s-1 cm-2 in the 2–10 keV 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.

Journal

• Publications of the Astronomical Society of Japan

  Publications of the Astronomical Society of Japan 59 S199-S208, 2007-01-25

  日本天文学会

Keywords

• acceleration of particles —X-rays: individual (HESS J1616-508) —X-rays: ISM

Details

• CRID: 1050577740963891584
• NII Article ID: 10023948831
• NII Book ID: AA1082896X
• ISSN: 00046264
• NDL BIB ID: 8621309
• Web Site: http://ir.lib.hiroshima-u.ac.jp/00020658
• Web Site: http://id.ndl.go.jp/bib/8621309
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8621309
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • NDL
  • CiNii Articles
  • KAKEN