Surveys and high resolution imaging of jets from evolved stars
演化恒星喷流的勘测和高分辨率成像
基本信息
- 批准号:20540234
- 负责人:
- 金额:$ 2.75万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2008
- 资助国家:日本
- 起止时间:2008 至 2010
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
We have studied the "water fountain" sources that exhibit bipolar fast jets traced by water vapor maser emission and associated with evolved star. We found a "helix" pattern of jet from one the water fountains and obtained its annual parallax distance. In another source, we found high velocity components of carbon-monoxide emission and an extremely low ^<12>CO/^<13>CO intensity ratio. These results suggest that the parental stars of the water fountains should be intermediate-mass (2-8 solar masses) stars and the jets should play a major role to shape planetary nebulae.
我们已经研究了“喷泉”来源,它展示了水蒸气脉泽发射追踪到的两极快速喷流,并与演化的恒星有关。我们从喷泉中发现了一种“螺旋”喷流图案,并得到了它的年度视差距离。在另一个源中,我们发现了一氧化碳排放的高速分量和极低的CO/13>;CO强度比。这些结果表明,喷泉的母星应该是中等质量(2-8个太阳质量)的恒星,喷流应该在行星状星云的形成中起主要作用。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
JVN mapping of SiO v=3 J=1-0 maser emission in W Hydrae
W Hydrae 中 SiO v=3 J=1-0 微波激射发射的 JVN 映射
- DOI:
- 发表时间:2010
- 期刊:
- 影响因子:0
- 作者:Hiroshi IMAI;Jun-ichi NAKASHIMA;Shuji DEGUCHI;AYA YAMAUCHI;Akiharu NAKAGAWA;Takumi NAGAYAMA
- 通讯作者:Takumi NAGAYAMA
JVN mapping of multi-transitions of SiO J=1-0 maser emission
SiO J=1-0 微波激射发射多跃迁的 JVN 映射
- DOI:
- 发表时间:2010
- 期刊:
- 影响因子:0
- 作者:Hiroshi Imai;Jun-ichi Nakashima;Shuji Deguchi;Akiharu Nakagawa;Takumi Nagayama;Aya Yamauchis
- 通讯作者:Aya Yamauchis
Japanese VLBI Network Observations of SiO Masers in the M-Type Giant IRC −10414
日本 VLBI 网络对 M 型巨型 IRC -10414 中 SiO 脉塞的观测
- DOI:10.1093/pasj/60.5.1051
- 发表时间:2008
- 期刊:
- 影响因子:2.3
- 作者:K. Ueda;H. Imai;S. Deguchi;R. Kamohara;Toshihisa Maeda;N. Matsumoto;T. Omodaká
- 通讯作者:T. Omodaká
CO in OH/IR stars close to the Galactic centre
靠近银河系中心的 OH/IR 恒星中的 CO
- DOI:
- 发表时间:2009
- 期刊:
- 影响因子:0
- 作者:Winnberg;A.;Deguchi;S.;Reid;M.J.;Nakashima;J.;Olofsson;H.;Habing;H.J.
- 通讯作者:H.J.
Astrometry of Galactic Star-Forming Region ON2N with VERA: Estimation of the Galactic Constants
- DOI:10.1093/pasj/63.1.45
- 发表时间:2010-12
- 期刊:
- 影响因子:2.3
- 作者:K. Ando;T. Nagayama;T. Omodaká;T. Handa;H. Imai;A. Nakagawa;H. Nakanishi;M. Honma;H. Kobayashi;T. Miyaji
- 通讯作者:K. Ando;T. Nagayama;T. Omodaká;T. Handa;H. Imai;A. Nakagawa;H. Nakanishi;M. Honma;H. Kobayashi;T. Miyaji
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IMAI Hiroshi其他文献
IMAI Hiroshi的其他文献
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Computational Combinatorial Physics by Harmonizing Matroid Theory and Quantum Physics
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- 批准号:
16K12392 - 财政年份:2016
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$ 2.75万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
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- 批准号:
16K07327 - 财政年份:2016
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$ 2.75万 - 项目类别:
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Exploration of synthesis and outward acceleration of circumstellar matter through simultaneous multiple-band high-resolution radio imaging
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16H02167 - 财政年份:2016
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Exploiting Matroid Minor Theory and Its Connection with Quantum Computing Models
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26540004 - 财政年份:2014
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25610043 - 财政年份:2013
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- 批准号:
24650003 - 财政年份:2012
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Preservation of endangered and rare animalspecies using induced pluripotent stem cells.
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23658224 - 财政年份:2011
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Unified Approach for Nanotechnology CAD/Computation by Algorithmic Analysis of Periodic Crystal Structures
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22650002 - 财政年份:2010
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20300002 - 财政年份:2008
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