Results 71 to 80 of about 46,669 (261)

Simultaneous characterization of the atmospheres, surfaces, and exomoons of nearby rocky exoplanets

open access: yesEarth and Planetary Physics, 2018
Atmospheric composition is an important indicator of habitability and life. The presence or absence of a large exomoon around an Earth-size exoplanet could have important consequences for planet climate stability.
WenLiang Cui   +6 more
doaj   +1 more source

SPHERE: the exoplanet imager for the Very Large Telescope [PDF]

open access: yesAstronomy & Astrophysics, 2019
Observations of circumstellar environments that look for the direct signal of exoplanets and the scattered light from disks have significant instrumental implications.
J. Beuzit   +20 more
semanticscholar   +1 more source

Plausible Constraints on the Range of Bulk Terrestrial Exoplanet Compositions in the Solar Neighborhood [PDF]

open access: yesAstrophysical Journal, 2022
Rocky planet compositions regulate planetary evolution by affecting core sizes, mantle properties, and melting behaviors. Yet, quantitative treatments of this aspect of exoplanet studies remain generally underexplored.
R. Spaargaren   +4 more
semanticscholar   +1 more source

ExoGemS Detection of a Metal Hydride in an Exoplanet Atmosphere at High Spectral Resolution

open access: yesThe Astrophysical Journal Letters, 2023
Exoplanet atmosphere studies are often enriched by synergies with brown dwarf analogs. However, many key molecules commonly seen in brown dwarfs have yet to be confirmed in exoplanet atmospheres.
Laura Flagg   +9 more
doaj   +1 more source

Optimization applied to selected exoplanets [PDF]

open access: yesJournal of Astrophysics and Astronomy, 2021
Transit and radial velocity models were applied to archival data in order to examine exoplanet properties, in particular for the recently discovered super-Earth GJ 357b. There is however considerable variation in estimated model parameters across the literature, and especially their uncertainty estimates.
Shi Yuan Ng   +5 more
openaire   +4 more sources

Abiotic ozone and oxygen in atmospheres similar to prebiotic earth [PDF]

open access: yes, 2014
The search for life on planets outside our solar system will use spectroscopic identification of atmospheric biosignatures. The most robust remotely detectable potential biosignature is considered to be the detection of oxygen (O2) or ozone (O3 ...
Domagal-Goldman, Shawn D.   +10 more
core   +1 more source

Photosynthesis in Hydrogen-Dominated Atmospheres

open access: yesLife, 2014
The diversity of extrasolar planets discovered in the last decade shows that we should not be constrained to look for life in environments similar to early or present-day Earth.
William Bains, Sara Seager, Andras Zsom
doaj   +1 more source

dfm/exoplanet: exoplanet v0.1.0

open access: yes, 2018
<p>The first public release of exoplanet.</p ...
Dan Foreman-Mackey, Geert Barentsen
core   +1 more source

Is there an exoplanet in the Solar system? [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society: Letters, 2016
Abstract We investigate the prospects for the capture of the proposed Planet 9 from other stars in the Sun's birth cluster. Any capture scenario must satisfy three conditions: the encounter must be more distant than ∼150 au to avoid perturbing the Kuiper belt; the other star must have a wide-orbit planet (a ≳ 100 au); the planet must be ...
Mustill, Alexander J.,   +2 more
openaire   +3 more sources

Atmospheric circulation of exoplanets

open access: yes地球与行星物理论评, 2023
To date, more than 5000 exoplanets and more than 2000 brown dwarfs have been confirmed, which shows rich diversities in many aspects. With the rapid growth of the planet family, both observational and theoretical research on exoplanet atmosphere is ...
Yuchen Lian, Yongyun Hu
doaj   +1 more source

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