Results 1 to 10 of about 3,196,959 (228)
A Dynamic Scheme to Assess Habitability of Exoplanets
, 2012 In the next few years, the number of catalogued exoplanets will be counted in the thousands and with it the need will arise to prioritize them in regard to habitability and the potential presence of life. Here, we suggest a first attempt of a dynamic scheme for classification based on our current understanding of parameters that are consistent and ...
Schulze-Makuch, D. +7 more
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Evidence for Low-level Dynamical Excitation in Near-resonant Exoplanet Systems*
The Astronomical Journal, 2023 Abstract The geometries of near-resonant planetary systems offer a relatively pristine window into the initial conditions of exoplanet systems. Given that near-resonant systems have likely experienced minimal dynamical disruptions, the spin–orbit orientations of these systems inform the typical outcomes of quiescent planet formation, as ...
Malena Rice +20 more
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Statistical Distribution Function of Orbital Spacings in Planetary Systems
The Astronomical JournalThe minimum orbital separation of planets in long-stable planetary systems is often modeled as a step function, parameterized with a single value ${{\rm{\Delta }}}_{\min }$ (measured in mutual Hill radius of the two neighboring planets).
Jeremy Dietrich +2 more
doaj +1 more source
A Test of the Dedalus Software for Exoplanet Atmospheric Dynamics
Research Notes of the AASAbstract Studying exoplanet flow and variability requires solving atmospheric dynamics equations accurately. Here we use the shallow-water equations to evaluate and employ Dedalus 3 , a spectral method-based software package for solving differential equations.
Rick Bonhof +2 more
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The Formation of Ultra-short-period Planets under the Influence of the Nearby Planetary Companions
The Astrophysical JournalUltra-short-period (USP) planets, defined as those with orbital periods shorter than 1 day, provide valuable insights into planetary evolution under strong stellar tidal interactions.
Jiajun Zhu +3 more
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Classification of Planetary Motion around Super-Jupiters and Brown Dwarfs
UniverseWe investigate the orbital dynamics of an exosystem consisting of a solar-mass host star, a transiting body, and an Earth-size exoplanet within the framework of the generalized three-body problem.
Euaggelos E. Zotos +2 more
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Exoplanet Occurrence Rate with Age for FGK Stars in Kepler
The Astronomical JournalWe measure the exoplanet occurrence rate as a function of isochrone and gyrochronology ages using confirmed and candidate planets identified in Q1–17 DR25 Kepler data. We employ Kepler's pipeline detection efficiency to correct for the expected number of
Maryum Sayeed +6 more
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AstronomyWe revisit 77 relaxed (extra)solar multibody (sub)systems containing 2–9 bodies orbiting about gravitationally dominant central bodies. The listings are complete down to (sub)systems with 5 orbiting bodies and additionally contain 33 smaller systems with
Dimitris M. Christodoulou +2 more
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The Astrophysical Journal, 2023 Photochemical hazes are expected to form in hot Jupiter atmospheres and may explain the strong scattering slopes and muted spectral features observed in the transmission spectra of many hot Jupiters.
Maria E. Steinrueck +7 more
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Breaking Giant Chains: Early-stage Instabilities in Long-period Giant Planet Systems
The Astrophysical JournalOrbital evolution is a critical process that sculpts planetary systems, particularly during their early stages where planet–disk interactions are expected to lead to the formation of resonant chains.
Vighnesh Nagpal +2 more
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