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Development and application of tools...

Beky, Bence.

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Development and application of tools to characterize transiting astrophysical systems.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Development and application of tools to characterize transiting astrophysical systems./
作者:	Beky, Bence.
面頁冊數:	234 p.
附註:	Source: Dissertation Abstracts International, Volume: 75-10(E), Section: B.
Contained By:	Dissertation Abstracts International75-10B(E).
標題:	Astrophysics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3626413
ISBN:	9781321013641

Development and application of tools to characterize transiting astrophysical systems.
Beky, Bence.

Development and application of tools to characterize transiting astrophysical systems. - 234 p.

Source: Dissertation Abstracts International, Volume: 75-10(E), Section: B.

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

This item must not be sold to any third party vendors.

Since the discovery of the first exoplanets (planets outside our Solar System) more than 20 years ago, there has been an increasing need for photometric and spectroscopic models to characterize these systems. While imaging has been used extensively for Solar System bodies and extended objects like galaxies, the small angular extent of typical planetary systems makes it difficult or impossible to resolve them. Spatially integrated observations like measuring the total brightness or spectrum, however, can be conducted at a resonable cost. This thesis focuses on photometric models in the context of transiting systems, which exhibit a number of phenomena that can be exploited for characterization.

ISBN: 9781321013641Subjects--Topical Terms:

535904
Astrophysics.

Development and application of tools to characterize transiting astrophysical systems.
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245 1 0 $a Development and application of tools to characterize transiting astrophysical systems.
300 $a 234 p.
500 $a Source: Dissertation Abstracts International, Volume: 75-10(E), Section: B.
500 $a Adviser: Matthew Holman.
502 $a Thesis (Ph.D.)--Harvard University, 2014.
506 $a This item must not be sold to any third party vendors.
520 $a Since the discovery of the first exoplanets (planets outside our Solar System) more than 20 years ago, there has been an increasing need for photometric and spectroscopic models to characterize these systems. While imaging has been used extensively for Solar System bodies and extended objects like galaxies, the small angular extent of typical planetary systems makes it difficult or impossible to resolve them. Spatially integrated observations like measuring the total brightness or spectrum, however, can be conducted at a resonable cost. This thesis focuses on photometric models in the context of transiting systems, which exhibit a number of phenomena that can be exploited for characterization.
520 $a First, we showcase the popular methods of transiting exoplanet discovery and characterization by ground based observations on the hot Jupiter HAT-P-27b. We demonstrate how transits allow us to constrain planetary mass, radius, and orbital inclination, which would not be possible based only on, for example, radial velocity measurements.
520 $a Next, we perform reflection spectroscopy on HAT-P-1b, another hot Jupiter, using the binary companion of the host star as a reference to remove systematic errors from the signal. Here the transiting nature of the system allows us to look for the very faint light reflected by the planet.
520 $a We also apply the idea of planetary transits to investigate the feasibility of transit observations in astrophysical systems of very different scale: stars in galactic nuclei potentially transiting the accretion disk of the supermassive black hole in the galactic center.
520 $a Finally, we focus on mapping spots on the stellar surface using transits. This method has been used for a decade, and helped constrain stellar rotation or orbital geometry in a number systems. We study starspots on HAT-P-11 not only to learn more about stellar rotation, but also to investigate the size and contrast of the spots themselves.
590 $a School code: 0084.
650 4 $a Astrophysics. $3 535904
650 4 $a Astronomy. $3 517668
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710 2 $a Harvard University. $b Astronomy. $3 3173874
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791 $a Ph.D.
792 $a 2014
793 $a English
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