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Topics in Extrasolar Planet Characte...

Howe, Alex Ryan.

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Topics in Extrasolar Planet Characterization.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Topics in Extrasolar Planet Characterization./
Author:	Howe, Alex Ryan.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2016,
Description:	251 p.
Notes:	Source: Dissertation Abstracts International, Volume: 78-02(E), Section: B.
Contained By:	Dissertation Abstracts International78-02B(E).
Subject:	Astrophysics. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10167564
ISBN:	9781369219128

Topics in Extrasolar Planet Characterization.
Howe, Alex Ryan.

Topics in Extrasolar Planet Characterization. - Ann Arbor : ProQuest Dissertations & Theses, 2016 - 251 p.

Source: Dissertation Abstracts International, Volume: 78-02(E), Section: B.

Thesis (Ph.D.)--Princeton University, 2016.

I present four papers exploring different topics in the area of characterizing the atmospheric and bulk properties of extrasolar planets. In these papers, I present two new codes, in various forms, for modeling these objects. A code to generate theoretical models of transit spectra of exoplanets is featured in the first paper and is refined and expanded into the APOLLO code for spectral modeling and parameter retrieval in the fourth paper. Another code to model the internal structure and evolution of planets is featured in the second and third papers. The first paper presents transit spectra models of GJ 1214b and other super-Earth and mini-Neptune type planets---planets with a "solid", terrestrial composition and relatively small planets with a thick hydrogen-helium atmosphere, respectively---and fit them to observational data to estimate the atmospheric compositions and cloud properties of these planets. The second paper presents structural models of super-Earth and mini-Neptune type planets and estimates their bulk compositions from mass and radius estimates. The third paper refines these models with evolutionary calculations of thermal contraction and ultraviolet-driven mass loss. Here, we estimate the boundaries of the parameter space in which planets lose their initial hydrogen-helium atmospheres completely, and we also present formation and evolution scenarios for the planets in the Kepler-11 system. The fourth paper uses more refined transit spectra models, this time for hot jupiter type planets, to explore the methods to design optimal observing programs for the James Webb Space Telescope to quantitatively measure the atmospheric compositions and other properties of these planets.

ISBN: 9781369219128Subjects--Topical Terms:

535904
Astrophysics.

Topics in Extrasolar Planet Characterization.
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245 1 0 $a Topics in Extrasolar Planet Characterization.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2016
300 $a 251 p.
500 $a Source: Dissertation Abstracts International, Volume: 78-02(E), Section: B.
500 $a Adviser: Adam S. Burrows.
502 $a Thesis (Ph.D.)--Princeton University, 2016.
520 $a I present four papers exploring different topics in the area of characterizing the atmospheric and bulk properties of extrasolar planets. In these papers, I present two new codes, in various forms, for modeling these objects. A code to generate theoretical models of transit spectra of exoplanets is featured in the first paper and is refined and expanded into the APOLLO code for spectral modeling and parameter retrieval in the fourth paper. Another code to model the internal structure and evolution of planets is featured in the second and third papers. The first paper presents transit spectra models of GJ 1214b and other super-Earth and mini-Neptune type planets---planets with a "solid", terrestrial composition and relatively small planets with a thick hydrogen-helium atmosphere, respectively---and fit them to observational data to estimate the atmospheric compositions and cloud properties of these planets. The second paper presents structural models of super-Earth and mini-Neptune type planets and estimates their bulk compositions from mass and radius estimates. The third paper refines these models with evolutionary calculations of thermal contraction and ultraviolet-driven mass loss. Here, we estimate the boundaries of the parameter space in which planets lose their initial hydrogen-helium atmospheres completely, and we also present formation and evolution scenarios for the planets in the Kepler-11 system. The fourth paper uses more refined transit spectra models, this time for hot jupiter type planets, to explore the methods to design optimal observing programs for the James Webb Space Telescope to quantitatively measure the atmospheric compositions and other properties of these planets.
590 $a School code: 0181.
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