Spectroscopy of Solar-Type Stars: Fundamental Problems in Stellar Astrophysics
太阳型恒星的光谱学:恒星天体物理学的基本问题
基本信息
- 批准号:0908342
- 负责人:
- 金额:$ 29.96万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2009
- 资助国家:美国
- 起止时间:2009-09-15 至 2013-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
AST-0908342KingThis award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).Dr. Jeremy King and his students will utilize high-resolution spectroscopy to address several longstanding or timely issues of fundamental stellar astrophysics. Firstly, they will identify short-period tidally-locked binaries in globular clusters to provide an improved estimate of the big-bang production of lithium and thereby obtain a direct estimate of lithium destruction in the old stars of the Milky Way's halo. Secondly, the group will participate in an already-initiated program to investigate the large dispersion of lithium abundances in the cool stars of the Pleiades cluster, the source of which is not currently understood. Thirdly, they will initiate a program to identify exoplanets using spectrographs on meter-class telescopes to detect chromospheric flux variations due to star-planet interactions. Fourthly, they will search for and study the properties of nearby post-T-Tauri stars, which are stars like the Sun but with ages corresponding to the epoch of terrestrial planet formation. Finally, the PI and his students will derive spectroscopic parameters and abundances of stars of varying evolutionary states in an old disk moving group to establish whether this kinematic entity exhibits chemical homogeneity.Dr. King will actively involve physics majors and summer students at South Carolina State University in all aspects of the program. This collaboration will build partnerships between research-class universities and institutions like SCSU that are successful in graduating minority students in astrophysics. The PI will continue providing undergraduate research and publication opportunities for Clemson University students. The fundamental nature of the research is expected to have a broad impact on the field of stellar astrophysics and the programs of other researchers in this field.
本奖项由《2009年美国复苏和再投资法案》(公法111-5)资助。杰里米·金和他的学生将利用高分辨率光谱学来解决几个长期存在的或及时的恒星天体物理学基础问题。首先,他们将在球状星团中识别短周期潮汐锁定双星,以提供对大爆炸产生锂的改进估计,从而获得对银河系光晕旧恒星中锂破坏的直接估计。其次,该小组将参与一项已经启动的计划,以调查昂宿星团冷恒星中锂丰度的巨大分散,目前尚不清楚其来源。第三,他们将启动一个项目,使用米级望远镜上的光谱仪来识别系外行星,以探测由于恒星-行星相互作用而产生的色球流量变化。第四,他们将寻找和研究附近的后T-Tauri恒星的性质,这些恒星类似太阳,但年龄与类地行星形成时代相对应。最后,PI和他的学生将得出一个旧的圆盘运动群中不同演化状态的恒星的光谱参数和丰度,以确定这个运动学实体是否表现出化学均质性。金将积极让南卡罗来纳州立大学物理专业的学生和暑期学生参与到该项目的各个方面。这项合作将在研究型大学和像南加州州立大学这样的机构之间建立伙伴关系,这些机构成功地让少数民族学生毕业于天体物理学。PI将继续为克莱姆森大学的学生提供本科生研究和出版的机会。这项研究的基本性质预计将对恒星天体物理学领域和该领域其他研究人员的计划产生广泛影响。
项目成果
期刊论文数量(0)
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Jeremy King其他文献
Repeat pelvic osteotomy in patients with failed closure of bladder exstrophy: applications and outcomes
- DOI:
10.1016/j.jpedsurg.2006.02.007 - 发表时间:
2006-06-01 - 期刊:
- 影响因子:
- 作者:
Caleb P. Nelson;Jeremy King;Paul D. Sponseller;John P. Gearhart - 通讯作者:
John P. Gearhart
Jeremy King的其他文献
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{{ truncateString('Jeremy King', 18)}}的其他基金
CAREER: Detailed Chemical Abundances in Galactic Star Clusters-- Fundamental Astronomy and Education Inside and Outside Closed Boxes
职业:银河星团中详细的化学丰度——封闭盒子内外的基础天文学和教育
- 批准号:
0239518 - 财政年份:2003
- 资助金额:
$ 29.96万 - 项目类别:
Standard Grant
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