Results 101 to 110 of about 2,941,415 (239)

Tidal evolution of close-in exoplanets in co-orbital configurations [PDF]

Celestial Mechanics and Dynamical Astronomy, 2013
In this paper, we study the behavior of a pair of co-orbital planets, both orbiting a central star on the same plane and undergoing tidal interactions. Our goal is to investigate final orbital configurations of the planets, initially involved in the 1/1 mean-motion resonance (MMR), after long-lasting tidal evolution.
Rodríguez, Adrian, Giuppone, Cristian Andrés, Michtchenko, Tatiana A.   +2 more
openaire   +3 more sources

Conclusive Evidence for a Population of Water Worlds around M Dwarfs Remains Elusive

The Astrophysical Journal Letters, 2023
The population of small, close-in exoplanets is bifurcated into super-Earths and sub-Neptunes. We calculate physically motivated mass–radius relations for sub-Neptunes, with rocky cores and H/He-dominated atmospheres, accounting for their thermal ...
James G. Rogers, Hilke E. Schlichting, James E. Owen   +2 more
doaj   +1 more source

Astrobiology and astrophilosophy: subsuming or bifurcating diciplines? [PDF]

, 2019
Initially, astrobiology subsumed into philosophy. However, philosophy has increasingly subsumed into astrobiology concurrent with it steadily becoming an observational and experimental activity that mainly focuses on the link between life and the cosmos,
von Hegner, Ian
core  

The Effects of Irradiation on Hot Jovian Atmospheres: Heat Redistribution and Energy Dissipation

, 2012
Hot Jupiters, due to the proximity to their parent stars, are subjected to a strong irradiating flux which governs their radiative and dynamical properties.
Batygin, Bodenheimer, Burkert, Burrows, Burrows, Burrows, Burrows, Burrows, Cowan, Cowan, Crossfield, Demory, Dobbs-Dixon, Fortney, Fortney, Fortney, Frédéric Pont, Goody, Guillot, Harrington, Heng, Hubeny, Ibgui, Jackson, Kevin Heng, Knutson, Knutson, Knutson, Kundu, Lewis, Li, Liu, Menou, Menou, Miller, Perna, Perna, Pierrehumbert, Rauscher, Rosalba Perna, Showman, Todorov, Winn, Youdin, Zel'dovich   +44 more
core   +1 more source

Deciphering the “Missing Xenon Paradox” in Celestial Bodies: A Multifaceted Perspective Toward Demystifying This Enigma

Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract Xenon (Xe) is a heavy noble gas with intriguing chemical properties, such as having several stable isotopes and the ability to form compounds under extreme conditions. Despite the predictions based on cosmochemical models that suggest xenon should be relatively abundant in planetary reservoirs, empirical data indicate a significant depletion ...
Avinash Kumar Both, Avradip Ghosh, Chin Li Cheung   +2 more
wiley   +1 more source

Friends Not Foes: Strong Correlation between Inner Super-Earths and Outer Gas Giants

The Astrophysical Journal Letters
The connection between outer gas giants and inner super-Earths reflects their formation and evolutionary histories. Past work exploring this link has suggested a tentative positive correlation between these two populations, but these studies have been ...
Marta L. Bryan, Eve J. Lee
doaj   +1 more source

Search for a circum-planetary material and orbital period variations of short-period Kepler exoplanet candidates

, 2014
A unique short-period Mercury-size Kepler exoplanet candidate KIC012557548b has been discovered recently by Rappaport et al. (2012). This object is a transiting disintegrating exoplanet with a circum-planetary material - comet-like tail.
Budaj, J., Garai, Z., Stellingwerf, R. F., Zhou, G.   +3 more
core   +1 more source

Modeling Wind‐Driven Waves on Other Planets: Applications to Mars, Titan, and Exoplanets

Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract Waves could exist on any planet with sustained winds and stable surface liquids. However, differences in atmospheres, liquids, and gravity confound efforts to extend Earth‐based empirical wave models to other planetary environments. We adapted a physics‐based numerical wave model to study how planetary conditions affect the growth of waves. We
Una G. Schneck, Charlene E. Detelich, Milan Curcic, Andrew D. Ashton, Alexander G. Hayes, J. Taylor Perron   +5 more
wiley   +1 more source

Formation, Evolution and Multiplicity of Brown Dwarfs and Giant Exoplanets [PDF]

, 2010
"Highlights of Spanish Astrophysics V", Proceedings of the VIII Scientific Meeting of the Spanish Astronomical Society (SEA) held in Santander, 7-11 July, 2008. Edited by J. Gorgas, L. J. Goicoechea, J. I. Gonzalez-Serrano, J. M. Diego.
openaire   +2 more sources

The Formation of Ultra-short-period Planets under the Influence of the Nearby Planetary Companions

The Astrophysical Journal
Ultra-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, Su Wang, Jianghui Ji, Yao Dong   +3 more
doaj   +1 more source