Results 51 to 60 of about 68,799 (245)
Angewandte Chemie, EarlyView.Under extreme pressure and temperature, superionic water acts as a strong superacid, catalyzing methane polycondensation through pentacoordinated carbonium ions (CH5+). This discovery reveals the non‐classical carbocation chemistry underlying the early stages of diamond formation in water under extreme conditions.
Thomas Thévenet +6 more
wiley +2 more sources
HD 199719’un Çizgi Ortay Analizi
Süleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2020 Bu çalışmada, TÜBİTAK Ulusal Gözlemevinde (TUG) devam etmekte olan ötegezegen araştırmasının bir parçası olarak HD 199719’un tayfsal çizgi ortaylarının (bisektör) değişimleri incelendi.
Didem Dilan İZCİ, Mesut YILMAZ
doaj +1 more source
SPHERE: the exoplanet imager for the Very Large Telescope [PDF]
Astronomy & 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
Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS) [PDF]
Astronomy & Astrophysics, 2020 Ultra-hot Jupiters offer interesting prospects for expanding our theories on dynamical evolution and the properties of extremely irradiated atmospheres.
V. Bourrier +23 more
semanticscholar +1 more source
ExoGemS Detection of a Metal Hydride in an Exoplanet Atmosphere at High Spectral Resolution
The 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
The Interior and Atmosphere of the Habitable-zone Exoplanet K2-18b [PDF]
Astrophysical Journal, 2020 Exoplanets orbiting M-dwarfs present a valuable opportunity for their detection and atmospheric characterization. This is evident from recent inferences of H2O in such atmospheres, including that of the habitable-zone exoplanet K2-18b.
N. Madhusudhan +4 more
semanticscholar +1 more source
Simultaneous characterization of the atmospheres, surfaces, and exomoons of nearby rocky exoplanets
Earth 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
Atmospheric circulation of exoplanets
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
Theoretical Spectra of Terrestrial Exoplanet Surfaces [PDF]
, 2012 We investigate spectra of airless rocky exoplanets with a theoretical framework that self-consistently treats reflection and thermal emission. We find that a silicate surface on an exoplanet is spectroscopically detectable via prominent Si-O features in ...
Batalha +28 more
core +2 more sources
Variability of Known Exoplanet Host Stars Observed by TESS
The Astronomical Journal, 2023 Both direct and indirect methods of exoplanet detection rely upon detailed knowledge of the potential host stars. Such stellar characterization allows for accurate extraction of planetary properties, as well as contributing to our overall understanding ...
Emilie R. Simpson +5 more
doaj +1 more source