Exoplanet atmosphere evolution: emulation with random forests. [PDF]
CoRR, 2021 ABSTRACT Atmospheric mass-loss is known to play a leading role in sculpting the demographics of small, close-in exoplanets. Knowledge of how such planets evolve allows one to ‘rewind the clock’ to infer the conditions in which they formed.
James G. Rogers +3 more
core +5 more sources
Haze evolution in temperate exoplanet atmospheres through surface energy measurements [PDF]
Nature Astronomy, 2021 6 figures, 2 tables, 23 ...
Xinting Yu +15 more
openaire +6 more sources
Haze Evolution in Temperate Exoplanet Atmospheres: the Laboratory Perspective
, 2022 With thousands of confirmed detections of exoplanets, recent efforts are focusing on characterizing their atmospheres through transmission spectroscopy. However, opacity sources such as condensation clouds and photochemical hazes have been found to be common in exoplanet atmospheres, muting spectroscopic features of atmospheric species.
Yu, Xinting +16 more
core +3 more sources
A Catalog of Exoplanet Atmospheric Retrieval Codes [PDF]
, 2023 Exoplanet atmospheric retrieval is a computational technique widely used to infer properties of planetary atmospheres from remote spectroscopic observations.
Ryan J. MacDonald +3 more
core +2 more sources
A Geologic Si‐O‐C Pathway to Incorporate Carbon in Silicates
Geophysical Monograph Series, Page 47-54., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Alexandra Navrotsky +2 more
wiley +2 more sources
The Evolution of Atmospheric Escape of Highly Irradiated Gassy Exoplanets
Proceedings of the International Astronomical Union, 2021 AbstractAtmospheric escape has traditionally been observed using hydrogen Lyman-α transits, but more recent detections utilise the metastable helium triplet lines at 1083nm. Capable of being observed from the ground, this helium signature offers new possibilities for studying atmospheric escape.
Andrew P. Allan +2 more
openaire +2 more sources
Conclusive Evidence for a Population of Water Worlds around M Dwarfs Remains Elusive
The Astrophysical Journal Letters, 2023 The population of small, close-in exoplanets is bifurcated into super-Earths and sub-Neptunes. We calculate physically motivated mass–radius relations for sub-Neptunes, with rocky cores and H/He-dominated atmospheres, accounting for their thermal ...
James G. Rogers +2 more
doaj +1 more source
Stellar rotation and its connection to the evolution of hydrogen‐dominated atmospheres of exoplanets [PDF]
Astronomische Nachrichten, 2021 AbstractThe population of known low‐ to intermediate‐mass exoplanets shows a large spread in densities, which is believed to be due to the diversity of planetary atmospheres and thus controlled by planetary atmospheric mass loss. One of the main drivers of long‐term atmospheric escape is the absorption of high‐energy X‐ray + extreme ultraviolet (XUV ...
openaire +2 more sources
True Polar Wander of Lava Worlds
The Astrophysical Journal Letters, 2023 As one of the most detectable types of terrestrial planets, lava worlds are highly prioritized targets for exoplanet atmosphere characterization since their atmospheres may reveal what they are made of and how.
Wanying Kang, Francis Nimmo, Feng Ding
doaj +1 more source
exoplanet: Gradient-based probabilistic inference for exoplanet data & other astronomical time series [PDF]
, 2021 What's Changed Adding test and fixing deprecated unit parameters by @dfm in https://github.com/exoplanet-dev/exoplanet/pull/211 Removing old ValueError in Keplerian orbit that should never be hit by @dfm in https://github.com/exoplanet-dev/exoplanet ...
Savel, Arjun +41 more
core +1 more source