Results 11 to 20 of about 2,690,574 (274)
Mapping out the time-evolution of exoplanet processes [PDF]
arXiv, 2019 There are many competing theories and models describing the formation, migration and evolution of exoplanet systems. As both the precision with which we can characterize exoplanets and their host stars, and the number of systems for which we can make ...
Beichman, Charles +4 more
core +4 more sources
The timescale for giant planet formation : constraints from the rotational evolution of exoplanet host stars [PDF]
arXiv, 2008 The timescale over which planets may form in the circumstellar disks of young stars is one of the main issues of current planetary formation models. We present here new constraints on planet formation timescales derived from the rotational evolution of ...
J. Bouvier
core +6 more sources
The Orbital Geometries and Stellar Obliquities of Exoplanet-hosting Multistar Systems [PDF]
The Astronomical JournalThe current orbital geometries of exoplanet systems offer a fossilized record of the systems’ dynamical histories. A particularly rich set of dynamical mechanisms is available to exoplanets residing in multistar systems, which may have their evolution ...
Malena Rice +2 more
doaj +3 more sources
Exoplanet atmosphere evolution: emulation with neural networks [PDF]
Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACT Atmospheric mass-loss is known to play a leading role in sculpting the demographics of small, close-in exoplanets. Knowledge of how such planets evolve allows one to ‘rewind the clock’ to infer the conditions in which they formed.
James G Rogers +3 more
openaire +5 more sources
Haze evolution in temperate exoplanet atmospheres through surface energy measurements [PDF]
Nature Astronomy, 2021 6 figures, 2 tables, 23 ...
Xinting Yu +15 more
openaire +9 more sources
Transiting Exoplanet Atmospheres in the Era of JWST [PDF]
arXivThe field of exoplanet atmospheric characterization has recently made considerable advances with the advent of high-resolution spectroscopy from large ground-based telescopes and the commissioning of the James Webb Space Telescope (JWST). We have entered
E. Kempton, H. Knutson
semanticscholar +2 more sources
Variability of Known Exoplanet Host Stars Observed by TESS [PDF]
The Astronomical Journal, 2023 Both direct and indirect methods of exoplanet detection rely upon detailed knowledge of the potential host stars. Such stellar characterization allows for accurate extraction of planetary properties, as well as contributing to our overall understanding ...
Emilie R. Simpson +5 more
doaj +2 more sources
The transiting exoplanet CoRoT-11b and its peculiar tidal evolution [PDF]
EPJ Web of Conferences, 2011 CoRoT-11b is a fairly massive hot-Jupiter (Mp = 2.33 ± 0.34 MJup ) in a 3 days orbit around a F6 V star with an age of 2 ± 1 Gyr. The relatively high projected rotational velocity of the star (v sin i⋆ = 40 ± 5 km/s) places CoRoT-11 among the most rapidly rotating planet hosting stars discovered so far.
D. Gandolfi, A. F. Lanza, C. Damiani
openalex +4 more sources
Early evolution of purple retinal pigments on Earth and implications for exoplanet biosignatures [PDF]
International Journal of Astrobiology, 2018 AbstractWe propose that retinal-based phototrophy arose early in the evolution of life on Earth, profoundly impacting the development of photosynthesis and creating implications for the search for life beyond our planet. While the early evolutionary history of phototrophy is largely in the realm of the unknown, the onset of oxygenic photosynthesis in ...
DasSarma, Shiladitya +1 more
openaire +9 more sources
Tidal Evolution of Exoplanets [PDF]
, 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 ...
A. C. M. Correia, J. Laskar
openalex +5 more sources