Results 21 to 30 of about 2,361 (128)
Tides and the Evolution of Planetary Habitability
, 2008 Tides raised on a planet by its host star's gravity can reduce a planet's orbital semi-major axis and eccentricity. This effect is only relevant for planets orbiting very close to their host stars.
Brian Jackson +7 more
core +1 more source
Atmospheric Circulation and Tides of "51Peg b-like" Planets [PDF]
, 2002 We examine the properties of the atmospheres of extrasolar giant planets at orbital distances smaller than 0.1 AU from their stars. We show that these ``51Peg b-like'' planets are rapidly synchronized by tidal interactions, but that small departures from
A. P. Showman +35 more
core +2 more sources
Journal of Geophysical Research: Planets, Volume 130, Issue 7, July 2025.Abstract We investigate the melt production of planetary impacts as a function of planet size (R/REarth $R/{R}_{\text{Earth}}$ = 0.1–1.5), impactor size (L $L$ = 1–1,000 km), and core size ratio (Rcore/R ${R}_{\text{core}}/R$ = 0.2–0.8) using a combination of parameterized convection models and fully dynamical 2D impact simulations.
Lukas Manske +6 more
wiley +1 more source
The Astronomical JournalThe highest priority recommendation of the Astro2020 Decadal Survey for space-based astronomy was the construction of an observatory capable of characterizing habitable worlds.
Mary Anne Limbach +5 more
doaj +1 more source
Searching for Exosatellites Orbiting L and T Dwarfs: Connecting Planet Formation to Moon Formation and Finding New Temperate Worlds [PDF]
, 2019 L-type and T-type dwarfs span the boundaries between main-sequence stars, brown dwarfs, and planetary-mass objects. For these reasons, L and T dwarfs are the perfect laboratories for exploring the relationship between planet formation and moon formation,
Burgasser, Adam +9 more
core +2 more sources
Planetary Migration and Extrasolar Planets in the 2/1 Mean-Motion Resonance
, 2004 We analyze the possible relationship between the current orbital elements fits of known exoplanets in the 2/1 mean-motion resonance and the expected orbital configuration due to migration.
Beaugé +58 more
core +2 more sources
Journal of Geophysical Research: Space Physics, Volume 130, Issue 4, April 2025.Abstract We report Magnetospheric Multiscale observations of oxygen ions (O+) during a coronal mass ejection (CME) in April 2023 when the solar wind was sub‐Alfvénic and Alfvén wings formed. For the first time, O+ characteristics are studied at the contact region between the unshocked solar wind and the magnetosphere.
Haoming Liang +9 more
wiley +1 more source
Exomoons and Exorings with the Habitable Worlds Observatory. II. Finding “Endor” with Lunar Eclipses
The Astronomical JournalGiant planets in the habitable zone may host exomoons with conditions conducive to life. In this paper, we describe a method by which the Habitable Worlds Observatory (HWO) could detect such moons: broadband reflected-light lunar eclipses (e.g., the moon
Mary Anne Limbach +8 more
doaj +1 more source
The Interiors of Giant Planets: Models and Outstanding Questions
, 2005 We know that giant planets played a crucial role in the making of our Solar System. The discovery of giant planets orbiting other stars is a formidable opportunity to learn more about these objects, what is their composition, how various processes ...
Bolton SJ +11 more
core +3 more sources
Journal of Geophysical Research: Planets, Volume 130, Issue 3, March 2025.Abstract Widespread OH/H2 ${\mathrm{H}}_{2}$O has been detected across the lunar surface, but its origin remains a matter of active investigation. We present laboratory measurements of Apollo‐17 samples LS 78421 and LS 73131 that demonstrate, in situ, the formation of OH/H2 ${\mathrm{H}}_{2}$O during irradiation by energetic hydrogen ions similar to ...
Li Hsia Yeo +4 more
wiley +1 more source