Results 1 to 10 of about 2,941,415 (239)
Exoplanet atmosphere evolution: emulation with neural networks [PDF]
Monthly Notices of the Royal Astronomical Society, 2021 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
semanticscholar +4 more sources
Obliquity Evolution of the Potentially Habitable Exoplanet Kepler-62f [PDF]
Astrobiology, 2017 Variations in the axial tilt, or obliquity, of terrestrial planets can affect their climates and therefore their habitability. Kepler-62f is a 1.4 R⊕ planet orbiting within the habitable zone of its K2 dwarf host star.
B. Quarles +3 more
semanticscholar +5 more sources
The Origin and Evolution of Saturn, with Exoplanet Perspective [PDF]
Saturn in the 21st Century, 2016 Saturn formed beyond the snow line in the primordial solar nebula that made it possible for it to accrete a large mass. Disk instability and core accretion models have been proposed for Saturn's formation, but core accretion is favored on the basis of ...
S. Atreya +5 more
semanticscholar +4 more sources
Investigating Exoplanet Orbital Evolution Around Binary Star Systems with Mass Loss [PDF]
Journal of Astronomy and Space Sciences, 2016 A planet revolving around binary star system is a familiar system. Studies of these systems are important because they provide precise knowledge of planet formation and orbit evolution. In this study, a method to determine the evolution of an exoplanet
Walid A. Rahoma
doaj +3 more sources
Stellar magnetic activity – Star-Planet Interactions
EPJ Web of Conferences, 2015 Stellar magnetic activity is an important factor in the formation and evolution of exoplanets. Magnetic phenomena like stellar flares, coronal mass ejections, and high-energy emission affect the exoplanetary atmosphere and its mass loss over time.
Poppenhaeger, K.
doaj +3 more sources
Mapping out the time-evolution of exoplanet processes [PDF]
, 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 +3 more sources
The Astronomical JournalExoplanet 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
APPLE: An Evolution Code for Modeling Giant Planets
The Astrophysical JournalWe introduce APPLE , a novel planetary evolution code designed specifically for the study of giant exoplanet and Jovian planet evolution in the era of Galileo, Juno, and Cassini. With APPLE , state-of-the-art equations of state for hydrogen, helium, ice,
Ankan Sur +4 more
doaj +2 more sources
A Red Giant Branch Common-envelope Evolution Scenario for the Exoplanet WD 1856 b [PDF]
Astrophysical Journal Letters, 2021 We propose a common-envelope evolution scenario where a red giant branch (RGB) star engulfs a planet during its core helium flash to explain the puzzling system WD 1856+534, where a planet orbits a white dwarf (WD) of mass M WD ≃ 0.52 M ⊙ with an orbital
Ariel Merlov, Ealeal Bear, N. Soker
semanticscholar +1 more source
Evolution of the Exoplanet Size Distribution: Forming Large Super-Earths Over Billions of Years [PDF]
Astronomical Journal, 2020 The radius valley, a bifurcation in the size distribution of small, close-in exoplanets, is hypothesized to be a signature of planetary atmospheric loss. Such an evolutionary phenomenon should depend on the age of the star–planet system. In this work, we
T. David +10 more
semanticscholar +1 more source