基本信息
浏览量:6
职业迁徙
个人简介
My group uses samples returned to Earth by spacecraft (cometary and interstellar dust; the solar wind) and by nature (meteorites and interplanetary dust particles) to study the earliest history of the solar system as well as the nucleosynthesis of most of the chemical elements in stars. Some twenty-five years ago, a remarkable discovery was made at the University of Chicago: primitive meteorites contain genuine stardust. These tiny (<10 µm in diameter) grains of silicon carbide, graphite and other refractory minerals condensed around dying stars (mostly red giant stars and supernovae), survived potentially destructive processes in the interstellar medium and during solar system formation, and can now be found in meteorites. These grains preserve an isotopic record of the nucleosynthesis in individual stars. We are also interested in chronology and conditions of formation of the first objects to form in our solar system, so-called “CAIs” (Ca-, Al-rich inclusions), 0.001 to 1 cm diameter rocks made of refractory minerals that are found in primitive meteorites. We have recently built a unique new instrument at the University of Chicago, CHILI (CHicago Instrument for Laser Ionization), which will allow isotopic and chemical analysis with much higher sensitivity, lateral resolution, and freedom from isobaric interferences than the previous state-of-the-art. With CHILI, we have begun analyzing stardust and CAIs, and will soon analyze cometary and interstellar dust returned to Earth by the Stardust spacecraft and solar wind sampled by the Genesis spacecraft and returned to Earth by the Genesis spacecraft. We are also interested in broader applications of CHILI in the earth and planetary sciences, where its strengths are in any problem requiring measurement of isotope or element ratios with high sensitivity and fine lateral resolution.
研究兴趣
论文共 708 篇作者统计合作学者相似作者
按年份排序按引用量排序主题筛选期刊级别筛选合作者筛选合作机构筛选
时间
引用量
主题
期刊级别
合作者
合作机构
ICARUS (2024): 115884
JAMAno. 13 (2024): 1145-1146
Yuji Doi,Andreas Pflaumer,Ivan Macciocca,Vanessa Connell, Kimberley Claro,Sebastian Lunke,Zornitza Stark,Andrew M. Davis
Heart Rhythmno. 5 (2024): S505-S506
Rachel Austin,Jaye S. Brown, Sarah Casauria,Evanthia O. Madelli,Tessa Mattiske,Tiffany Boughtwood, Alejandro Metke,Andrew Davis,Ari E. Horton,David Winlaw, Debjani Das, Magdalena Soka,
Genetics in Medicine Openpp.101842, (2024)
Rachel Austin,Jaye S. Brown, Sarah Casauria,Evanthia O. Madelli,Tessa Mattiske,Tiffany Boughtwood, Alejandro Metke,Andrew Davis,Ari E. Horton,David Winlaw, Debjani Das, Magdalena Soka,
Genetics in Medicine Open (2024): 101842
引用0浏览0引用
0
0
METEORITICS & PLANETARY SCIENCE (2024)
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIESno. 2 (2024): 27
J. Aleon,S. Mostefaoui, H. Bureau, D. Vangu,H. Khodja, K. Nagashima,N. Kawasaki,Y. Abe,C. M. O'D. Alexander,S. Amari,Y. Amelin,K. Bajo,
METEORITICS & PLANETARY SCIENCE (2024)
JAMAno. 4 (2024): 352-353
Circulationno. 25 (2023): 2029-2037
加载更多
作者统计
合作学者
合作机构
D-Core
- 合作者
- 学生
- 导师
数据免责声明
页面数据均来自互联网公开来源、合作出版商和通过AI技术自动分析结果,我们不对页面数据的有效性、准确性、正确性、可靠性、完整性和及时性做出任何承诺和保证。若有疑问,可以通过电子邮件方式联系我们:report@aminer.cn