2013 Fiscal Year Final Research Report
A theoretical study to construct a unified model for high mass binaries with very high energy Gamma-ray emissions.
| Project/Area Number |
23540271
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Astronomy
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| Research Institution | Yamanashi Gakuin University |
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Principal Investigator |
NAITO Tsuguya 山梨学院大学, 経営情報学部, 教授 (50319084)
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| Co-Investigator(Kenkyū-buntansha) |
HAYASAKI Kimitake 京都大学, 理学部, 研究員(科学研究) (30374218)
KAWACHI Akiko 東海大学, 理学部, 准教授 (70332591)
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| Co-Investigator(Renkei-kenkyūsha) |
OKAZAK Atsuo 北海学園大学, 工学部, 教授 (00185414)
KAWACHI Akiko 東海大学, 理学部, 准教授 (70332591)
NAGATAKI Shigehiro 独立行政法人理化学研究所, 准主任研究員 (60359643)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 理論天文学 / 超高エネルギーガンマ線 / 大質量連星系 |
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| Research Abstract |
A goal of this study is to construct a unified model for an emission mechanism of high mass binaries emitting very high energy Gamma-rays. For high mass binaries including pulsar and Be type star, we research on interactions between pulsar wind and stellar wind/decretion disk using a numerical simulation (1) and an analytical approach (2).
In the case of (1), for the high density disk a cavity is made in the disk by pulsar wind. Thus, we show that intense Gamma-rays are emitted from the cavity because of high pressure in the cavity and large emission area. In the case of (2), for the strongly driven pulsar it goes into more inside the disk. Thus, we show that a double-peak light curve of Gamma-rays in the observation is explained.
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[Journal Article] Modeling High-energy Light curves of the PSR B1259-63/LS 2883 Binary Based on 3D SPH Simulations2012
Author(s)
高田順平, 岡崎敦男, 長滝重博, 内藤統也, 河内 明子, ee, Shiu-Hang (Herman) 森正樹, 早崎公威, 山口正輝, Owocki, Stan
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Journal Title
The Astrophysical Journal
Volume: 750巻
Pages: 70-79
DOI
Peer Reviewed
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