Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS)(JAXA)
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS)(JAXA)
Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory
Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory
Graduate School of Science and Engineering, Aoyama Gakuin University
Max-Planck-Institut fur Kernphysic
Max-Planck-Institut fur Kernphysic
Max-Planck-Institut fur Kernphysic
School of Physics & Astronomy, University of Leeds
出版者
宇宙航空研究開発機構
出版者（英）
Japan Aerospace Exploration Agency (JAXA)
雑誌名
宇宙航空研究開発機構特別資料:
雑誌名(英)
JAXA Special Publication: The Energetic Cosmos; from Suzaku to ASTRO-H
巻
JAXA-SP-09-008E
ページ
52 - 53
発行年
2010-02-26
会議概要（会議名, 開催地, 会期, 主催者等）（英）
The 3rd Suzaku international Conference "Energetic Cosmos : from Suzaku to ASTRO-H" (June 29-July 2, 2009. Grand Park Otaru Hotel), Otaru, Hokkaido Japan
抄録（英）
We report on the results from Suzaku and previous X-ray observations on the galactic binary LS5039, a TeV gamma-ray emitting binary. The Suzaku observation which covered continuously more than one orbital period revealed strong X-ray flux modulation at the orbital period for the first time, with its close resemblance to the TeV gamma-ray light curve. The X-ray data up to 70keV measured with Suzaku are described by a hard power-law spectrum with a phase-dependent photon index which varies within GAMMA = 1.45 - 1.6. We also found that the modulation curves are surprisingly stable in 1999 - 2007. The long-term behavior of the non-thermal X-ray light curves over eight years favors that a scenario in which the radiation is related to an ultrarelativistic pulsar wind would be able to account for the stable clock-like X-ray/TeV gamma-ray behaviors.
内容記述（英）
Meeting sponsors: The University of Tokyo, The Institute of Physical and Chemical Research, The Japan Society for the Promotion of Science
Study of the Spectral and Temporal Characteristics of X-ray Emission of the Gamma-ray Binary LS 5039 with Suzaku
64574020.pdf
(1.44MB)
