Investigating high-mass star formation through chemical compositions of infrared dark clouds
通过红外暗云的化学成分研究大质量恒星的形成
基本信息
- 批准号:21740144
- 负责人:
- 金额:$ 2.91万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Young Scientists (B)
- 财政年份:2009
- 资助国家:日本
- 起止时间:2009 至 2010
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
We have investigated the high-mass star formation on the basis of the chemical compositions of infrared dark clouds (IRDCs), which are thought to be in early evolutionary stages of high-mass star formation. For this purpose, we have carried out a survey of molecular lines toward massive clumps associated with infrared dark clouds (IRDCs) by using the Nobeyama Radio Observatory 45 m telescope and the ASTE 10 m telescope. We have found that the SiO and CH_3OH abundances relative to H^<13>CO^+ are enhanced in several IRDC clumps. Since SiO and CH_3OH are known as "shock tracers", this results means that an interaction between outflows and dense gas frequently occurs in early evolutionary stages of high-mass star formation. The data obtained are useful for future high-resolution observations.
我们根据红外暗云(IRDC)的化学成分研究了大质量恒星的形成,红外暗云被认为处于大质量恒星形成的早期演化阶段。为此,我们利用野边山射电天文台45 m望远镜和ASTE 10 m望远镜对与红外暗云(IRDC)相关的大块团块进行了分子谱线调查。我们发现,在几个IRDC团块中,SiO和CH_3OH相对于H ^ 13 CO ^+ 的丰度有所增强。由于SiO和CH_3OH被称为“激波示踪剂”,这一结果意味着流出物与致密气体之间的相互作用经常发生在大质量恒星形成的早期演化阶段。获得的数据对于未来的高分辨率观测很有用。
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)
ASTEチーム、"Band 8 QM受信機のASTE望遠鏡への搭載"
ASTE 团队,“在 ASTE 望远镜上安装频段 8 QM 接收器”
- DOI:
- 发表时间:2011
- 期刊:
- 影响因子:0
- 作者:酒井剛;塚越崇;井上裕文;河野孝太郎;山本智;岩下浩幸;田村陽一;廿日出文洋;島尻芳人;大島泰;川辺良平;佐藤直久;飯塚吉三;関本裕太郎;田村友範;野口卓;小笠原隆亮; 他
- 通讯作者:他
DNC/HNC and N2D+/N2H+ ratios in high-mass star-forming cores
高质量恒星形成核心中的 DNC/HNC 和 N2D/N2H 比率
- DOI:10.1093/mnras/stu298
- 发表时间:2014-02-12
- 期刊:
- 影响因子:4.8
- 作者:F. Fontani;T. Sakai;K. Furuya;N. Sakai;Y. Aikawa;S. Yamamoto
- 通讯作者:S. Yamamoto
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SAKAI Takeshi其他文献
SAKAI Takeshi的其他文献
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17K02605 - 财政年份:2017
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25381204 - 财政年份:2013
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23740146 - 财政年份:2011
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Grant-in-Aid for Young Scientists (B)
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- 批准号:
23684038 - 财政年份:2011
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A cultural pluralism in the age of crisis- "Documents" and the ambition of Georges Bataille
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23520400 - 财政年份:2011
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21740374 - 财政年份:2009
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$ 2.91万 - 项目类别:
Grant-in-Aid for Young Scientists (B)
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20520304 - 财政年份:2008
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19840007 - 财政年份:2007
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13610612 - 财政年份:2001
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