Results 91 to 100 of about 3,353,500 (213)
KRONOS I: The 1–2.8 μm JWST Transmission Spectrum of the 23 Myr V1298 Tau c
The Astronomical JournalWhile recent JWST observations of mature super-Earths and sub-Neptunes have frequently revealed featureless transmission spectra, their inflated progenitors offer a unique window into understanding their primordial compositions.
Matthew M. Murphy +18 more
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The Astrophysical JournalPlanet formation models suggest that the small exoplanets that migrate from beyond the snowline of the protoplanetary disk likely contain water-ice-rich cores (∼50% by mass), also known as water worlds.
Aritra Chakrabarty, Gijs D. Mulders
doaj +1 more source
The Astronomical JournalHot Jupiters are expected to be tidally locked and synchronously rotating due to their short orbital periods. These conditions create large day–night temperature contrasts and are thought to drive eastward superrotating jets.
Aurora Y. Kesseli +10 more
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The Cosmic Shoreline Revisited: A Metric for Atmospheric Retention Informed by Hydrodynamic Escape
The Astrophysical JournalThe “cosmic shoreline,” a semi-empirical relation that separates airless worlds from worlds with atmospheres as proposed by K. J. Zahnle & D. C. Catling, is now guiding large-scale JWST surveys aimed at detecting rocky exoplanet atmospheres.
Xuan Ji +3 more
doaj +1 more source
exoplanet-dev/jaxoplanet: Astronomical time series analysis with JAX
<h2>What's Changed</h2> <ul> <li>Updating and applying pre-commit by @dfm in https://github.com/exoplanet-dev/jaxoplanet/pull/16</li> <li>Adding interface for arbitrary order limb darkening by @dfm in https://github ...
Degen, David +6 more
core +1 more source
Coupled Orbital and Interior Evolution of Sub-Neptunes
The Astrophysical JournalRecent observations have yielded the first measurements of young exoplanet demographics. Close-in sub-Neptune occurrence rates appear to rise from young (10–100 Myr) to intermediate (100 Myr–1 Gyr) ages and then decline sharply in the old (≳1 Gyr) Kepler
Ritika Sethi +2 more
doaj +1 more source
Observational constraints of exoplanet clouds
, 2023 We entered a new era in extrasolar planets characterisation. We are indeed given access to constraints on their meteorology. New facilities have been designed specifically for exoplanet atmospheric characterisation.
Iro, Nicolas
core
Oxygen Left Behind: Atmospheric Enrichment Due to Fractionation in Sub-Neptunes Using BOREAS
The Astrophysical JournalThe evolution of exoplanetary atmospheres is strongly influenced by atmospheric escape, particularly for close-in planets. Fractionation during atmospheric loss can preferentially remove lighter elements such as hydrogen, while retaining heavier species ...
Marilina Valatsou +3 more
doaj +1 more source
EXODUS: A mission to explore exoplanet evolution through understanding atmospheric escape
EXODUS is a proposed mission to study the largely unexplored range of sub-Neptune to Jupiter-sized exoplanets with orbital periods longer than 100 days. The focus of the mission lies in the detection of these planets and characterisation of atmospheric escape to constrain their evolutionary pathways.
Citlali Bruce Rosete +10 more
openaire +2 more sources
Astrophysics and Space Science, 2011 The detection and investigation of EUV heated, extended and non-hydrostatic upper atmospheres around terrestrial exoplanets would provide important insights into the interaction of the host stars plasma environment as well as the evolution of Earth-type planets their atmospheres and possible magnetic environments.
Lammer, H. +13 more
openaire +2 more sources