Search
Now showing items 1-10 of 59
Alien Maps of an Ocean-Bearing World
(Institute of Physics, 2009)
When Earth-mass extrasolar planets first become detectable, one challenge will be to determine which of these worlds harbor liquid water, a widely used criterion for habitability. Some of the first observations of these ...
A Super-Earth Transiting a Nearby Low-Mass Star
(Nature Publishing Group, 2009)
A decade ago, the detection of the first transiting extrasolar planet provided a direct constraint on its composition and opened the door to spectroscopic investigations of extrasolar planetary atmospheres. Because such ...
Absolute Properties of the Low-Mass Eclipsing Binary CM Draconis
(Institute of Physics, 2009)
Spectroscopic and eclipsing binary systems offer the best means for determining accurate physical properties of stars, including their masses and radii. The data available for low-mass stars have yielded firm evidence that ...
The Rise of the Vulcans
(Cambridge University Press, 2008)
In this introductory review, I summarize the path from the initial 1995 radial-velocity discovery of hot Jupiters to the current rich panoply of investigations that are afforded when such objects are observed to transit ...
Mass and Radius Determinations for Five Transiting M-Dwarf Stars
(Institute of Physics, 2009)
We have derived masses and radii for both components in five short-period single-lined eclipsing binary stars discovered by the TrES wide-angle photometric survey for transiting planets. All these systems consist of a ...
A New Spectroscopic and Photometric Analysis of the Transiting Planet Systems TrES-3 and TrES-4
(Institute of Physics, 2009)
We report new spectroscopic and photometric observations of the parent stars of the recently discovered transiting planets TrES-3 and TrES-4. A detailed abundance analysis based on high-resolution spectra yields [Fe/H] = ...
Transit Infrared Spectroscopy of the Hot Neptune Around GJ 436 with the Hubble Space Telescope
(John Wiley & Sons, 2008)
The nearby transiting system GJ 436b offers a unique opportunity to probe the structure and atmosphere of an extrasolar ‘hot Neptune’. In this Letter, we present the main results of observations covering two transit events ...
Characterization of the HD 17156 Planetary System
(EDP Sciences, 2009)
Aims. We present data to improve the known parameters of the HD 17156 system (peculiar due to the eccentricity and long orbital period of its transiting planet) and constrain the presence of stellar companions.
Methods. ...
HARPS-N Observes the Sun as a Star
(IOP Publishing, 2015)
Radial velocity (RV) perturbations induced by stellar surface inhomogeneities including spots, plages and granules currently limit the detection of Earth-twins using Doppler spectroscopy. Such stellar noise is poorly ...
The False Positive Rate of Kepler and the Occurrence of Planets
(IOP Publishing, 2013)
The Kepler mission is uniquely suited to study the frequencies of extrasolar planets. This goal requires knowledge of the incidence of false positives such as eclipsing binaries in the background of the targets, or physically ...