Results 31 to 40 of about 464 (180)
Are extrasolar oceans common throughout the Galaxy?
, 2007 International audienceLight and cold extrasolar planets such as OGLE 2005-BLG-390Lb, a 5.5 Earth masses planet detected via microlensing, could be frequent in the Galaxy according to some preliminary results from microlensing experiments.
Ehrenreich, David +3 more
core +1 more source
Disentangling the Hemispheres of Teegarden’s Star b with LIFE
The Astrophysical Journal LettersTeegarden’s Star is one of the most promising targets for the first observations of LIFE as a nontransiting rocky planet with similar bulk properties to the Earth and a relatively quiescent M dwarf host star.
Ryan Boukrouche, Markus Janson
doaj +1 more source
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
, 2014 ChH highlights financial support of the European Community under the FP7 by an ERC starting grant. SLC acknowledges financial support of University of LeicesterBrown Dwarfs are the coolest class of stellar objects known to date. Our present perception is
Casewell, Sarah, Helling, Christiane
core +1 more source
Devolatilization of extrasolar planetesimals by 60Fe and 26Al heating [PDF]
Whilst the formation of Solar system planets is constrained by meteoritic evidence, the geophysical history of low-mass exoplanets is much less clear.
Eatson, Joseph W. +3 more
core +4 more sources
The Astronomical JournalPlanets and the stars they orbit are born from the same cloud of gas and dust, and the primordial compositions of rocky exoplanets have been assumed to have iron and refractory abundance ratios consistent with their host star. To test this assumption, we
Casey L. Brinkman +5 more
doaj +1 more source
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
The Astronomical Journal, 2023 In the upcoming decades, one of the primary objectives in exoplanet science is to search for habitable planets and signs of extraterrestrial life in the Universe.
Huihao Zhang +2 more
doaj +1 more source
Astronomische Nachrichten, Volume 346, Issue 2, February 2025.ABSTRACT In our search for life beyond the Solar System, certain planetary bodies may be more conducive to life than Earth. However, the observability of these “superhabitable” (SH) planets in the habitable zones around K dwarf stars has not been fully modeled. This study addresses this gap by modeling the atmospheres of SH exoplanets.
Iva Vilović +3 more
wiley +1 more source
From planetesimals to planets: volatile molecules
, 2014 Context. Solar and extrasolar planets are the subject of numerous studies aiming to determine their chemical composition and internal structure. In the case of extrasolar planets, the composition is important as it partly governs their potential ...
Amaury Thiabaud +14 more
core +1 more source