Results 111 to 120 of about 21,297 (217)
The Astrophysical JournalExoplanet mass and radius inferences fundamentally rely on host star mass and radius inferences. Despite the importance of host star mass, radius, and elemental abundance inferences for the derivation of exoplanet internal structure constraints ...
Alejandra Ross +4 more
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CNO Isotope Ratios Across Exoplanet Systems: Isotope Analysis in Cool Dwarf Exoplanet Hosts
, 2023 To date, there are still only a handful of dwarf star isotopic abundances in the literature and even fewer of those are from exoplanet host stars. Past isotopic searches have been hindered by limited sensitivity and resolution, strong telluric absorption, and the opacity due to millions of other molecular absorption lines that dominate the observed ...
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The Astronomical JournalIt has been suggested that β Pic b has a supersolar metallicity and subsolar C/O ratio. Assuming solar carbon and oxygen abundances for the star β Pic and therefore the planet’s parent protoplanetary disk, β Pic b’s C/O ratio suggests that it formed via ...
Henrique Reggiani +7 more
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The Case for Edge-on Binaries: An Avenue Toward Comparative Exoplanet Demographics
The Astrophysical Journal LettersMost Sun-like and higher-mass stars reside in systems that include one or more gravitationally bound stellar companions. These systems offer an important probe of planet formation in the most common stellar systems, while also providing key insights into
Joseph E. Hand +2 more
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White dwarf systems: Exoplanets and debris disks
Although there is abundant and diverse observational evidence in support of white dwarf stars hosting planets or debris disks which form in the catastrophic destruction of various planetary bodies, the key processes that explain these observations are still being intensely investigated.
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Disrupted Exoplanet Systems in the SuperWASP Archive [PDF]
, 2020 The aim of this research project has been to search for disrupted or disintegrating exoplanets; this search has been carried out using archival data from the Super-WASP (Wide Angle Search for Planets) transit photometry detection programme. The main aim of the archival search was to look for objects similar to Kepler-1520b (Rappaport et al., 2012) and ...
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White dwarf systems: The composition of exoplanets
Preprint of a chapter for the 'Encyclopedia of Astrophysics' (Editor-in-Chief Ilya Mandel, Section Editor Dimitri Veras) to be published by Elsevier as a Reference ...
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Unexpected Near-Resonant and Metastable States of Young Multiplanet Systems
The Astrophysical JournalRecent observations suggest that the incidence of near-resonant planets declines as planetary systems age, making young planetary systems key signposts of early dynamical evolution.
Zhecheng Hu +6 more
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Hic Sunt Dracones: Uncovering Dynamical Perturbers within the Habitable Zone
The Astronomical JournalThe continuing exploration of neighboring planetary systems is providing deeper insights into the relative prevalence of various system architectures, particularly with respect to the solar system.
Stephen R. Kane, Jennifer A. Burt
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No Strong Associations between Eccentricity and Orbital Architecture in Kepler Compact Multis
The Astronomical JournalThe dynamical history of a planetary system is recorded in the present day architecture of its constituent planets’ sizes, orbital periods, and eccentricities.
Gregory J. Gilbert +2 more
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