Results 11 to 20 of about 22,639,627 (262)

Testing exoplanet evaporation with multitransiting systems [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2019
The photoevaporation model is one of the leading explanations for the evolution of small, close-in planets and the origin of the radius-valley. However, without planet mass measurements, it is challenging to test the photoevaporation scenario.
J. Owen, B. C. Estrada
semanticscholar   +7 more sources

Alkaline exospheres of exoplanet systems: evaporative transmission spectra [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2020
Hydrostatic equilibrium is an excellent approximation for the dense layers of planetary atmospheres where it has been canonically used to interpret transmission spectra of exoplanets.
A. Gebek, A. Oza
semanticscholar   +5 more sources

Stability analysis of three exoplanet systems [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2020
The orbital solutions of published multiplanet systems are not necessarily dynamically stable on time-scales comparable to the lifetime of the system as a whole. For this reason, dynamical tests of the architectures of proposed exoplanetary systems are a
J. Marshall   +4 more
semanticscholar   +5 more sources

DEBRIS DISKS IN KEPLER EXOPLANET SYSTEMS [PDF]

open access: yesThe Astrophysical Journal, 2011
The Kepler mission recently identified 997 systems hosting candidate extrasolar planets, many of which are super-Earths. Realizing these planetary systems are candidates to host extrasolar asteroid belts, we use mid-infrared data from the Wide-field ...
S. Lawler, B. Gladman
semanticscholar   +4 more sources

MEAN MOTION RESONANCES IN EXOPLANET SYSTEMS: AN INVESTIGATION INTO NODDING BEHAVIOR [PDF]

open access: bronze, 2012
Motivated by the large number of extrasolar planetary systems that are near mean motion resonances, this paper explores a related type of dynamical behavior known as “nodding.” Here, the resonance angle of a planetary system executes libration ...
Jacob A. Ketchum   +2 more
openalex   +3 more sources

Resonant and Ultra-short-period Planet Systems Are at Opposite Ends of the Exoplanet Age Distribution

open access: yesThe Astronomical Journal
Exoplanet systems are thought to evolve on secular timescales over billions of years. This evolution is impossible to directly observe on human timescales in most individual systems.
Stephen P. Schmidt   +2 more
doaj   +2 more sources

Pulsating stars harbouring planets

open access: yesEPJ Web of Conferences, 2013
Why bother with asteroseismology while studying exoplanets? There are several answers to this question. Asteroseismology and exoplanetary sciences have much in common and the synergy between the two opens up new aspects in both fields.
Moya A.
doaj   +3 more sources

Application of Bayesian model inadequacy criterion for multiple data sets to radial velocity models of exoplanet systems [PDF]

open access: bronze, 2011
We present a simple mathematical criterion for determining whether a given statistical model does not describe several independent sets of measurements, or data modes, adequately.
Mikko Tuomi   +2 more
openalex   +3 more sources

White Dwarf Systems: the Composition of Exoplanets [PDF]

open access: green
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 ...
Amy Bonsor
openalex   +3 more sources

Multibeam Blind Search of Targeted SETI Observations toward 33 Exoplanet Systems with FAST [PDF]

open access: yesAstronomical Journal, 2023
The search for extraterrestrial intelligence (SETI) is to search for technosignatures associated with extraterrestrial life, such as engineered radio signals.
Xiaolu Luan   +10 more
semanticscholar   +1 more source

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