RUI: Searching for the Nearest Young Stars

RUI:寻找最近的年轻恒星

基本信息

  • 批准号:
    0307830
  • 负责人:
  • 金额:
    $ 15.31万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2003
  • 资助国家:
    美国
  • 起止时间:
    2003-06-01 至 2007-05-31
  • 项目状态:
    已结题

项目摘要

AST 0307830Jensen, Eric L.N.Recent observations have shed new light on the star formation history of the solar neighborhood. One of the most significant is the recognition of several associations of very young and nearby stars. These observations suggest there may be previously unrecognized pre-main sequence stars near Earth, either in a distributed population or in loose associations that are no longer associated with molecular gas from which they formed. If they can be found, such stars would be very useful in constraining both the star formation history in the solar neighborhood and models of the evolution of protoplanetary disks. The PI here is continuing a survey for nearby young stars that are not members of known star forming regions. This research has already yielded discovery of dozens of previously unknown young stars, some of which are quite near Earth. The aims of this survey are: (1) to search for young stars in a way that is not biased toward or against stars with circumstellar disks; and (2) to use the stars discovered as laboratories to study disk evolution at ages when planet formation around them should be occurring.Broader impacts. The PI involves a significant number of undergraduate student researchers in all aspects of the scientific process, including proposal writing, observations at the telescope, archival data research, data reduction and analysis, and presentation of results at meetings and in the literature. The high quality spectroscopic data obtained during this observational program will be made available to the astronomical community for other investigations of these stars' properties. Finally, understanding how planets form (and possibly discovering new planets) is of great popular interest. The PI draws on this interest and uses results from this research program to motivate his undergraduate students at all levels to learn more fundamental science and to become informed citizens. The PI also presents regular popular-level talks about this research to spread the results of NSF-supported science to a larger audience.
AST0307830Jensen,Eric L.N.最近的观测揭示了太阳近邻恒星形成的历史。其中最重要的一项是对非常年轻的恒星和附近恒星的几个关联的认识。这些观测表明,地球附近可能存在以前未被发现的前主序恒星,要么是以分散的群体形式存在,要么是以松散的组合形式存在,这些恒星不再与它们形成的分子气体相关联。如果能够找到它们,这样的恒星将在约束太阳附近的恒星形成历史和原行星盘演化模型方面非常有用。PI正在继续对附近的年轻恒星进行调查,这些恒星不是已知恒星形成区域的成员。这项研究已经发现了数十颗以前未知的年轻恒星,其中一些离地球很近。这项调查的目的是:(1)以一种不偏向或不偏向于有星盘的恒星的方式寻找年轻恒星;(2)利用作为实验室发现的恒星来研究其周围行星形成的年龄的盘状演化。在科学进程的方方面面,包括撰写建议书、用望远镜观察、档案数据研究、数据整理和分析以及在会议和文献中介绍结果,PI都有相当数量的本科生研究人员参与。在此观测计划期间获得的高质量光谱数据将提供给天文学团体,用于对这些恒星的性质进行其他研究。最后,了解行星是如何形成的(以及可能发现新的行星)是人们非常感兴趣的。PI利用这种兴趣,并利用这个研究项目的结果来激励他的各级本科生学习更多的基础科学,成为消息灵通的公民。PI还定期举行关于这项研究的大众水平的演讲,将NSF支持的科学成果传播给更多的受众。

项目成果

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Eric L. Jensen其他文献

Student financial aid and degree attainment
  • DOI:
    10.1007/bf00992039
  • 发表时间:
    1984-01-01
  • 期刊:
  • 影响因子:
    2.300
  • 作者:
    Eric L. Jensen
  • 通讯作者:
    Eric L. Jensen
Drug testing and social control: Implications for state theory
  • DOI:
    10.1007/bf00729131
  • 发表时间:
    1990-09-01
  • 期刊:
  • 影响因子:
    1.300
  • 作者:
    Jurg Gerber;Eric L. Jensen;Myron Schreck;Ginna M. Babcock
  • 通讯作者:
    Ginna M. Babcock
Politics and white collar crime: Explaining government intervention in the Savings and Loan Scandal
  • DOI:
    10.1007/bf02461114
  • 发表时间:
    1996-09-01
  • 期刊:
  • 影响因子:
    1.100
  • 作者:
    Jurg Gerber;Eric L. Jensen;Eric J. Fritsch
  • 通讯作者:
    Eric J. Fritsch

Eric L. Jensen的其他文献

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{{ truncateString('Eric L. Jensen', 18)}}的其他基金

Collaborative Research: Triangulating on the Ages of Stars: Using Open Clusters to Calibrate Stellar Chronometers from Myr to Gyr Ages
合作研究:恒星年龄的三角测量:使用疏散星团校准从密尔到吉尔年龄的恒星计时器
  • 批准号:
    1109693
  • 财政年份:
    2011
  • 资助金额:
    $ 15.31万
  • 项目类别:
    Standard Grant
A New Observatory for Undergraduate Training and Faculty Research at Swarthmore College
斯沃斯莫尔学院本科生培训和教师研究的新观察站
  • 批准号:
    0721386
  • 财政年份:
    2007
  • 资助金额:
    $ 15.31万
  • 项目类别:
    Standard Grant
LEXEN: Prospects for Life on Planets in Binary Star Systems
LEXEN:双星系统中行星上生命的前景
  • 批准号:
    9996278
  • 财政年份:
    1998
  • 资助金额:
    $ 15.31万
  • 项目类别:
    Standard Grant
LEXEN: Prospects for Life on Planets in Binary Star Systems
LEXEN:双星系统中行星上生命的前景
  • 批准号:
    9714246
  • 财政年份:
    1997
  • 资助金额:
    $ 15.31万
  • 项目类别:
    Standard Grant

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