Results 81 to 90 of about 740,794 (260)
Five Key Exoplanet Questions Answered via the Analysis of 25 Hot-Jupiter Atmospheres in Eclipse [PDF]
Astrophysical Journal Supplement Series, 2022 Population studies of exoplanets are key to unlocking their statistical properties. So far, the inferred properties have been mostly limited to planetary, orbital, and stellar parameters extracted from, e.g., Kepler, radial velocity, and Gaia data.
Q. Changeat +13 more
semanticscholar +1 more source
Ranges of Atmospheric Mass and Composition of Super Earth Exoplanets [PDF]
, 2008 Terrestrial-like exoplanets may obtain atmospheres from three primary sources: Capture of nebular gases, degassing during accretion, and degassing from subsequent tectonic activity.
Burbine T. H. +5 more
core +1 more source
Water on Hot Rocky Exoplanets [PDF]
, 2021 Data suggest that most rocky exoplanets with orbital period $p$ $<$ 100 d ("hot" rocky exoplanets) formed as gas-rich sub-Neptunes that subsequently lost most of their envelopes, but whether these rocky exoplanets still have atmospheres is unknown. We identify a pathway by which 1-1.7 $R_{Earth}$ (1-10 $M_{Earth}$) rocky exoplanets with orbital periods
arxiv +1 more source
A Catalog of Exoplanet Atmospheric Retrieval Codes
Research Notes of the AAS, 2023 Abstract Exoplanet atmospheric retrieval is a computational technique widely used to infer properties of planetary atmospheres from remote spectroscopic observations. Retrieval codes typically employ Bayesian sampling algorithms or machine learning approaches to explore the range of atmospheric properties (e.g., chemical composition ...
MacDonald, Ryan, Batalha, Natasha
openaire +2 more sources
The Detectability and Characterization of the TRAPPIST-1 Exoplanet Atmospheres with JWST [PDF]
Astronomical Journal, 2019 The James Webb Space Telescope (JWST) will offer the first opportunity to characterize terrestrial exoplanets with sufficient precision to identify high mean molecular weight atmospheres, and TRAPPIST-1's seven known transiting Earth-sized planets are ...
J. Lustig-Yaeger +2 more
semanticscholar +1 more source
Laboratory studies on the viability of life in H2-dominated exoplanet atmospheres [PDF]
Nature Astronomy, 2020 Theory and observation for the search for life on exoplanets via atmospheric ‘biosignature gases’ is accelerating, motivated by the capabilities of the next generation of space- and ground-based telescopes.
S. Seager +3 more
semanticscholar +1 more source
, 2021 Recent transit spectra suggest organic aerosol formation in the atmosphere of sub-Neptunes. Sulfur gases are expected to be present in warm exoplanet atmospheres with high metallicity.
V. Vuitton +9 more
semanticscholar +1 more source
Clouds and Hazes in Exoplanet Atmospheres [PDF]
, 2013 book chapter to appear in "Comparative Climatology of Terrestrial Planets" (S. Mackwell, M. Bullock, J. Harder, eds.; University of Arizona Press, 2013)
Jeffrey N. Cuzzi +3 more
openaire +4 more sources
Observations of PAHs in the atmospheres of discs and exoplanets
Monthly Notices of the Royal Astronomical Society, 2022 ABSTRACT Polycyclic aromatic hydrocarbons (PAHs) play a key role in the chemical and hydrodynamical evolution of the atmospheres of exoplanets and planet-forming discs. If they can survive the planet formation process, PAHs are likely to be involved in pre-biotic chemical reactions eventually leading to more complex molecules such as ...
Ercolano, Barbara +7 more
openaire +4 more sources
An Updated Study of Potential Targets for Ariel [PDF]
, 2019 Ariel has been selected as ESA's M4 mission for launch in 2028 and is designed for the characterisation of a large and diverse population of exoplanetary atmospheres to provide insights into planetary formation and evolution within our Galaxy.
Edwards, Billy +4 more
core +4 more sources