Results 81 to 90 of about 94,271 (166)

The Importance of Optical Wavelength Data on Atmospheric Retrievals of Exoplanet Transmission Spectra

open access: yesThe Astronomical Journal
Exoplanet transmission spectra provide rich information about the chemical composition, clouds, and temperature structure of exoplanet atmospheres. Most exoplanet transmission spectra only span infrared wavelengths (≳1 μ m), which can preclude crucial ...
Charlotte Fairman   +2 more
doaj   +1 more source

Transiting Exoplanet Atmospheres in the Era of JWST [PDF]

open access: yesarXiv
The field of exoplanet atmospheric characterization has recently made considerable advances with the advent of high-resolution spectroscopy from large ground-based telescopes and the commissioning of the James Webb Space Telescope (JWST). We have entered an era in which atmospheric compositions, aerosol properties, thermal structures, mass loss, and ...
arxiv  

Exoplanet atmospheres: a brand-new and rapidly expanding research field [PDF]

open access: yesarXiv, 2010
The field of exoplanets is quickly expanding from just the detection of new planets and the measurement of their most basic parameters, such as mass, radius and orbital configuration, to the first measurements of their atmospheric characteristics, such as temperature, chemical composition, albedo, dynamics and structure.
arxiv  

JWST Thermal Emission of the Terrestrial Exoplanet GJ 1132b

open access: yesThe Astrophysical Journal Letters
We present thermal emission measurements of GJ 1132b spanning 5–12 μ m obtained with the Mid-Infrared Instrument Low-Resolution Spectrometer on the James Webb Space Telescope.
Qiao Xue   +11 more
doaj   +1 more source

Signature of Vertical Mixing in Hydrogen-dominated Exoplanet Atmospheres

open access: yesThe Astrophysical Journal
Vertical mixing is a crucial disequilibrium process in exoplanet atmospheres, significantly impacting chemical abundance and observed spectra. While current state-of-the-art observations have detected its signatures, the effect of vertical mixing on ...
Vikas Soni, Kinsuk Acharyya
doaj   +1 more source

JWST's eyes on an alien world. [PDF]

open access: yesInnovation (Camb), 2023
Zhang X.
europepmc   +1 more source

Controls of Atmospheric Methane on Early Earth and Inhabited Earth-like Terrestrial Exoplanets

open access: yesThe Astrophysical Journal
Methane (CH _4 ) is a primarily biogenic greenhouse gas. As such, it represents an essential biosignature to search for life on exoplanets. Atmospheric CH _4 abundance on Earth-like inhabited exoplanets is likely controlled by marine biogenic production ...
Aika Akahori   +2 more
doaj   +1 more source

Puffy Venuses: The Mass–Radius Impact of Carbon-rich Atmospheres on Lava Worlds

open access: yesThe Astrophysical Journal
The recent advancements in exoplanet observations enable the potential detection of exo-Venuses, rocky planets with carbon-rich atmospheres. How extended these atmospheres can be, given high carbon abundances, has not been studied.
Bo Peng, Diana Valencia
doaj   +1 more source

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