Results 11 to 20 of about 17,269 (209)

Atmospheric Escape and the Evolution of Close-In Exoplanets [PDF]

open access: yesAnnual Review of Earth and Planetary Sciences, 2019
Exoplanets with substantial hydrogen/helium atmospheres have been discovered in abundance, many residing extremely close to their parent stars. The extreme irradiation levels that these atmospheres experience cause them to undergo hydrodynamic atmospheric escape.
James E Owen
openaire   +6 more sources

Dynamical Evolution of Closely Packed Multiple Planetary Systems Subject to Atmospheric Mass Loss

open access: yesThe Astronomical Journal, 2023
A gap in exoplanets’ radius distribution has been widely attributed to the photoevaporation threshold of their progenitors’ gaseous envelope. Giant impacts can also lead to substantial mass loss.
Su Wang, D. N. C. Lin
doaj   +1 more source

Obliquity Evolution of the Potentially Habitable Exoplanet Kepler-62f [PDF]

open access: yesAstrobiology, 2020
15 pages, 17 figures, 5 tables; Revised relative to Referee Reports.
Quarles, Billy   +3 more
openaire   +3 more sources

Two Suns in The Sky: Stellar Multiplicity in Exoplanet Systems [PDF]

open access: yes, 2006
We present results of a reconnaissance for stellar companions to all 131 radial-velocity-detected candidate extrasolar planetary systems known as of July 1, 2005.
Beaulieu, Thom D.   +6 more
core   +2 more sources

Tidal evolution of close-in exoplanets and host stars

open access: yesMonthly Notices of the Royal Astronomical Society, 2023
ABSTRACT The evolution of exoplanetary systems with a close-in planet is ruled by the tides mutually raised on the two bodies and by the magnetic braking of the host star. This paper deals with consequences of this evolution and some features that can be observed in the distribution of the systems' two main periods: the orbital period ...
Ferraz Mello, S, Beauge, Cristian
openaire   +3 more sources

TOI-1136 is a Young, Coplanar, Aligned Planetary System in a Pristine Resonant Chain

open access: yesThe Astronomical Journal, 2023
Convergent disk migration has long been suspected to be responsible for forming planetary systems with a chain of mean-motion resonances (MMRs). Dynamical evolution over time could disrupt the delicate resonant configuration. We present TOI-1136, a 700 ±
Fei Dai   +62 more
doaj   +1 more source

The Apparent Tidal Decay of WASP-4 b Can Be Explained by the Rømer Effect

open access: yesUniverse, 2023
Tidal orbital decay plays a vital role in the evolution of hot Jupiter systems. As of now, this has only been observationally confirmed for the WASP-12 system.
Jan-Vincent Harre, Alexis M. S. Smith
doaj   +1 more source

Analysis of the orbital evolution of exoplanets [PDF]

open access: yesComputational and Applied Mathematics, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Carvalho, J. P.S.   +4 more
openaire   +2 more sources

DYNAMIC EVOLUTION EXOPLANET SYSTEMS, MOVING IN ORBITAL RESONANCES WITH THE ACCOUNT OF SECULAR PERTURBATION FROM N BODIES

open access: yesOdessa Astronomical Publications, 2017
Equations of exoplanet's motion connected with orbital Lindblad resonances with the account of secular terms caused by gravitational non-resonant perturbation are derived. Qualitative researches of orbital evolution modeling exoplanet systems are carried
B. R. Mushailov, A. K. Chuyas
doaj   +1 more source

Theoretical Spectra of Terrestrial Exoplanet Surfaces [PDF]

open access: yes, 2012
We investigate spectra of airless rocky exoplanets with a theoretical framework that self-consistently treats reflection and thermal emission. We find that a silicate surface on an exoplanet is spectroscopically detectable via prominent Si-O features in ...
Batalha   +28 more
core   +2 more sources

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