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Browsing Astronomy by Title

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  • Schmidt, Sarah Jane (2013-02-25)
    The ages of cool and ultracool dwarfs are particularly important. For cool M dwarfs, accurate ages combined with their ubiquity in the stellar disk could lead to a new level of precision in age dating the Galaxy. A better ...
  • Desai, Vandana, 1975- (2004)
    Clusters of galaxies are the largest bound structures in the universe. As such, they represent an important tool for testing models of structure formation. In addition, because galaxies in clusters span a range of local ...
  • Agüeros, Marcel A (2006)
    Although extra-solar X-ray sources were first observed almost fifty years ago, the first all-sky imaging X-ray survey was only recently completed. The ROSAT All-Sky Survey (RASS) Bright and Faint Source Catalogs include ...
  • Hammergren, Mark (1998)
    I present reflectance spectra of 34 near-Earth objects (NEOs), 6 main-belt asteroids, and four non-NEO cometary candidates, all obtained with the Apache Point Observatory 3.5m telescope + Double Imaging Spectrograph. The ...
  • Stilp, Adrienne (2013-07-23)
    The cause of HI velocity dispersions in the interstellar medium (ISM) of galaxies is often attributed to star formation, but recent evidence has shown these two quantities are not connected in regions of low star formation. ...
  • Shields, Aomawa Lalahie
    The goal of the work presented here is to explore the unique interactions between a host star, an orbiting planet, and additional planets in a stellar system, and to develop and test methods that include both radiative and ...
  • Misra, Amit
    Transit transmission spectroscopy may provide the first glimpse at the atmosphere of an Earth-like exoplanet, and therefore the first chance to detect habitability markers and biosignatures, or signs of life. Within the ...
  • Olsen, Knut A. G (1998)
    We have obtained deep Hubble Space Telescope color-magnitude diagrams of fields centered on the six old LMC globular clusters NGC 1754, NGC 1835, WGC 1898, NGC 1916, NGC 2005, and NGC 2019. The data have been carefully ...
  • Kundurthy, Praveen (2013-02-25)
    The following dissertation presents work done as part of a ground-based transit follow-up program designed to look for transit timing variations in well-known transiting systems called, the Apache Point Survey of Transit ...
  • West, Andrew Alan, 1977- (2005)
    We present the results from a study of HI selected galaxies that fall within both the HI Parkes All Sky Survey (HIPASS) and the Sloan Digital Sky Survey (SDSS). By comparing the optical properties derived from the SDSS ...
  • Buchman, Luisa T (2003)
    An in-depth numerical study using 3 + 1 formulations of the Einstein equations for 1D colliding plane waves reveals factors which increase accuracy and stability: using "mixed" variables, hyperbolicity, satisfying the ...
  • VanderPlas, Jacob T. (2013-02-25)
    In the past decade, weak gravitational lensing has become an important tool in the study of the universe at the largest scale, giving insights into the distribution of dark matter, the expansion of the universe, and the ...
  • Loebman, Sarah Rose (2013-11-14)
    In this thesis, I present a comparison between recent Sloan Digital Sky Survey (SDSS) Galactic studies and N-body simulations to aid in the interpretation of observed structural features. I investigate the origin of the ...
  • Rosenfield, Philip Arthur (2014-02-24)
    Resolved stellar populations in galaxies are excellent laboratories for testing our understanding of galaxy formation, integrated colors and luminosities, supernova progenitor masses, and energy input from stellar feedback. ...
  • Deutsch, Eric W (1998)
    Ten percent of our Galaxy's luminous (LX≳1036 ergs-1 ) X-ray point sources are located in globular clusters (GCs), but globular clusters contribute a much smaller fraction of normal stars to the Galaxy. X-ray bursts ...
  • MacLeod, Chelsea Louise (2012-09-13)
    I provide a quantitative analysis of the database of 3.5 million photometric measurements for 80,000 spectroscopically confirmed quasars recently assembled by the Sloan Digital Sky Survey (SDSS). This database is an excellent ...
  • Skillman, Evan David (1984)
    Giant Extragalactic H II Regions (GEHRs) in nearby galaxies have been observed at both radio and optical wavelengths. Narrow band optical imaging, large and small aperture optical spectrophotometry, radio continuum imaging ...
  • Robinson, Tyler David (2013-02-25)
    The goal of this work is to develop and validate a comprehensive model of Earth's disk-integrated spectrum. Earth is our only example of a habitable planet, or a planet capable of maintaining liquid water on its surface. ...
  • Munshi, Ferah (2014-02-24)
    The primary focus of my thesis work is to study star formation using a series of high resolution cosmological N-body Simulations. Specifically, I have studied the total stellar-to-halo mass ratio as a function of halo mass ...
  • Kowalski, Adam Francis (2013-02-25)
    We present a homogeneous survey of near-ultraviolet (NUV) /optical line and continuum emission during twenty M dwarf flares with simultaneous, high cadence photometry and spectra. These data were obtained to study the ...

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