Results 21 to 30 of about 1,114 (198)
Atmospheric Escape and the Evolution of Close-In Exoplanets [PDF]
Annual 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.
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Obliquity Evolution of the Potentially Habitable Exoplanet Kepler-62f [PDF]
Astrobiology, 2020 15 pages, 17 figures, 5 tables; Revised relative to Referee Reports.
Quarles, Billy +3 more
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TOI-1136 is a Young, Coplanar, Aligned Planetary System in a Pristine Resonant Chain
The 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
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Odessa 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
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The Apparent Tidal Decay of WASP-4 b Can Be Explained by the Rømer Effect
Universe, 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
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The Evolution of Atmospheric Escape of Highly Irradiated Gassy Exoplanets
Proceedings of the International Astronomical Union, 2021 AbstractAtmospheric escape has traditionally been observed using hydrogen Lyman-α transits, but more recent detections utilise the metastable helium triplet lines at 1083nm. Capable of being observed from the ground, this helium signature offers new possibilities for studying atmospheric escape.
Andrew P. Allan +2 more
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Solar System Research, 2010 After the discovery of more than 400 planets beyond our Solar System, the characterization of exoplanets as well as their host stars can be considered as one of the fastest growing fields in space science during the past decade. The characterization of exoplanets can only be carried out in a well coordinated interdisciplinary way which connects ...
Lammer, H. +38 more
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The Possible Evolution of an Exoplanet’s Atmosphere
Eos, 2021 Scientific sleuths explore data gathered trillions of kilometers away and put forth different, and often conflicting, ideas to reconstruct the gaseous envelope on a distant rocky exoplanet, GJ 1132 b.
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Angewandte Chemie, EarlyView.Under extreme pressure and temperature, superionic water acts as a strong superacid, catalyzing methane polycondensation through pentacoordinated carbonium ions (CH5+). This discovery reveals the non‐classical carbocation chemistry underlying the early stages of diamond formation in water under extreme conditions.
Thomas Thévenet +6 more
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The Atmospheric Evolution of Small, Close-In Exoplanets
, 2022 Submitted in part fulfilment of the requirements for the degree of Doctor of Philosophy at Imperial College London, July 2022.
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