자료유형 | 학위논문 |
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서명/저자사항 | Element Diffusion and Other Mixing in White Dwarf Stars. |
개인저자 | Bauer, Evan B. |
단체저자명 | University of California, Santa Barbara. Physics. |
발행사항 | [S.l.]: University of California, Santa Barbara., 2019. |
발행사항 | Ann Arbor: ProQuest Dissertations & Theses, 2019. |
형태사항 | 186 p. |
기본자료 저록 | Dissertations Abstracts International 81-04B. Dissertation Abstract International |
ISBN | 9781088311288 |
학위논문주기 | Thesis (Ph.D.)--University of California, Santa Barbara, 2019. |
일반주기 |
Source: Dissertations Abstracts International, Volume: 81-04, Section: B.
Advisor: Bildsten, Lars. |
이용제한사항 | This item must not be sold to any third party vendors. |
요약 | White dwarf stars reveal signatures of material accreted from their surroundings. Making quantitative inferences about the processes that supply this material requires theoretical models of white dwarf surface structure. In this dissertation, I examine methods for building evolutionary white dwarf models that include element diffusion, convection, and thermohaline instability. Each of these mixing processes that occur at white dwarf surfaces has important implications for observable signatures of accreted material. Models that account for all types of surface mixing allow for inferences about accretion rates and composition of bodies that supply the material. The picture that emerges from models presented in this work is one of planetary systems supplying rocky debris at higher rates and from larger mass reservoirs than previously thought. |
일반주제명 | Astrophysics. Theoretical physics. Computational physics. |
언어 | 영어 |
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