Results 81 to 90 of about 50,289 (239)

Exoplanets Torqued by the Combined Tides of a Moon and Parent Star [PDF]

open access: yes, 2018
In recent years, there has been interest in Earth-like exoplanets in the habitable zones of low mass stars ($\sim0.1-0.6\,M_\odot$). Furthermore, it has been argued that a large moon may be important for stabilizing conditions on a planet for life. If these two features are combined, then an exoplanet can feel a similar tidal influence from both its ...
arxiv   +1 more source

The MUSCLES Extension for Atmospheric Transmission Spectroscopy: UV and X-Ray Host-star Observations for JWST ERS & GTO Targets

open access: yesThe Astronomical Journal, 2023
X-ray through infrared spectral energy distributions (SEDs) are essential for understanding a star’s effect on exoplanet atmospheric composition and evolution. We present a catalog of panchromatic SEDs, hosted on the Barbara A. Mikulski Archive for Space
Patrick R. Behr   +10 more
doaj   +1 more source

Kepler Observations of the Three Pre-Launch Exoplanet Candidates: Discover of Two Eclipsing Binaries and a New Exoplanet [PDF]

open access: yes, 2010
Three transiting exoplanet candidate stars were discovered in a ground-based photometric survey prior to the launch of NASA's Kepler mission. Kepler observations of them were obtained during Quarter 1 of the Kepler mission.
Bryson, Stephen T.   +8 more
core  

The Exoplanet Population Observation Simulator. II -- Population Synthesis in the Era of Kepler [PDF]

open access: yes, 2019
The collection of planetary system properties derived from large surveys such as Kepler provides critical constraints on planet formation and evolution.
Apai, Daniel   +5 more
core   +3 more sources

Tidal Evolution of Exoplanets

open access: yes, 2010
Tidal effects arise from differential and inelastic deformation of a planet by a perturbing body. The continuous action of tides modify the rotation of the planet together with its orbit until an equilibrium situation is reached. It is often believed that synchronous motion is the most probable outcome of the tidal evolution process, since synchronous ...
Correia, Alexandre C. M.   +1 more
openaire   +7 more sources

A fresh look into the interaction of exoplanets magnetosphere with stellar winds using MHD simulations

open access: yesFrontiers in Astronomy and Space Sciences
Numerous numerical studies have been carried out in recent years that simulate different aspects of exoplanets’ magnetosphere and stellar winds. These studies have focused primarily on hot Jupiters with sun-like stars. This study addresses the challenges
Fatemeh Bagheri   +3 more
doaj   +1 more source

Effects of rotation and magnetic fields on the lithium abundance and asteroseismic properties of exoplanet-host stars

open access: yes, 2010
Aims: The effects of rotation and magnetic fields on the surface abundances of solar-type stars are studied in order to investigate whether the reported difference in lithium content of exoplanet-host stars can be related to their rotational history ...
A. Maeder   +30 more
core   +1 more source

A chemical survey of exoplanets with ARIEL [PDF]

open access: yesExperimental Astronomy, 2018
Thousands of exoplanets have now been discovered with a huge range of masses, sizes and orbits: from rocky Earth-like planets to large gas giants grazing the surface of their host star. However, the essential nature of these exoplanets remains largely mysterious: there is no known, discernible pattern linking the presence, size, or orbital parameters ...
Tinetti, Giovanna   +224 more
openaire   +16 more sources

Chemical modeling of exoplanet atmospheres [PDF]

open access: yes, 2014
The past twenty years have revealed the diversity of planets that exist in the Universe. It turned out that most of exoplanets are different from the planets of our Solar System and thus, everything about them needs to be explored. Thanks to current observational technologies, we are able to determine some information about the atmospheric composition,
arxiv   +1 more source

Coreless Terrestrial Exoplanets [PDF]

open access: yesThe Astrophysical Journal, 2008
Differentiation in terrestrial planets is expected to include the formation of a metallic iron core. We predict the existence of terrestrial planets that have differentiated but have no metallic core--planets that are effectively a giant silicate mantle.
Linda T. Elkins-Tanton, Sara Seager
openaire   +3 more sources

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