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Understanding the Nature of Stellar ...

Lee, Duane Morris.

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Understanding the Nature of Stellar Chemical Abundance Distributions in Nearby Stellar Systems.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Understanding the Nature of Stellar Chemical Abundance Distributions in Nearby Stellar Systems./
作者:	Lee, Duane Morris.
面頁冊數:	178 p.
附註:	Source: Dissertation Abstracts International, Volume: 75-06(E), Section: B.
Contained By:	Dissertation Abstracts International75-06B(E).
標題:	Astronomy. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3612188
ISBN:	9781303734656

Understanding the Nature of Stellar Chemical Abundance Distributions in Nearby Stellar Systems.
Lee, Duane Morris.

Understanding the Nature of Stellar Chemical Abundance Distributions in Nearby Stellar Systems. - 178 p.

Source: Dissertation Abstracts International, Volume: 75-06(E), Section: B.

Thesis (Ph.D.)--Columbia University, 2014.

Since stars retain signatures of their galactic origins in their chemical compositions, we can exploit the chemical abundance distributions that we observe in stellar systems to put constraints on the nature of their progenitors. In this thesis, I present results from three projects aimed at understanding how high resolution spectroscopic observations of nearby stellar systems might be interpreted. The first project presents one possible explanation for the origin of peculiar abundance distributions observed in ultra-faint dwarf satellites of the Milky Way. The second project explores to what extent the distribution of chemical elements in the stellar halo can be used to trace Galactic accretion history from the birth of the Galaxy to the present day. Finally, a third project focuses on developing an input optimization algorithm for the second project to produce better estimates of halo accretion histories. In conclusion, I propose some other new ways to use statistical models and techniques along with chemical abundance distribution data to uncover galactic histories.

ISBN: 9781303734656Subjects--Topical Terms:

517668
Astronomy.

Understanding the Nature of Stellar Chemical Abundance Distributions in Nearby Stellar Systems.
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