How Internal Structure Shapes the Metallicity of Giant Exoplanets [PDF]
Submitted to A& ...
Lorenzo Peerani +2 more
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The Coronal Structure of the Sun-Like Exoplanet-Host GJ 3021 [PDF]
Proceedings of the International Astronomical Union, 2014 AbstractWe present the results of a numerical simulation of the corona and wind structure of the Sun-like exoplanet-host GJ 3021 using a global magnetohydrodynamic (MHD) model. The simulation is driven by the radial component of the surface magnetic field recovered with the Zeeman Doppler Imaging (ZDI) technique.
Julián D. Alvarado‐Gómez +5 more
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Horizontal and vertical exoplanet thermal structure from a JWST spectroscopic eclipse map [PDF]
Nat AstronRyan C. Challener +35 more
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Exoplanet Technosignature Detection of Space-Based Terraforming Mirror Structures
The search for technosignatures no longer rests solely on radio signals. Modern wide-field surveys now make it possible to detect engineered structures at interstellar distances. Among the most promising of these are space based mirrors, as large reflective constructs designed to manipulate planetary climates by increasing or reducing incoming sunlight.
Abrahamson, John Topham
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Retrieval of atmospheric structure and composition of exoplanets from transit spectroscopy
, 2012 Recent spectroscopic observations of transiting exoplanets have permitted the derivation of the thermal structure and molecular abundances of H2O, CO, CO2, CH4, metallic oxides and alkali metals in these extreme atmospheres. Here, for the first time, a fully-fledged retrieval algorithm has been applied to exoplanet spectra to determine the thermal ...
Jae Min Lee
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Linking the interior structure of terrestrial exoplanets to their (tidal) observables
Tidal effects probe the interior of celestial bodies and are an important source of information on their thermal state and the prevailing deformation mechanisms. In the case of exoplanets, estimation of quantities related to tides might add important constraints on the interior structure of those worlds that would complement the existing measurements ...
Michaela Walterová, Marie Běhounková
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Proceedings of the National Academy of Sciences, 2013 Significance Planets around other stars, or exoplanets, are now known to be common in our galaxy. Exoplanets span a much wider range of physical conditions than the planets in our solar system, and include extremely puffy gas giants to compact rocky planets that can have densities as high as that of iron. The diversity of exoplanets allows us
Spiegel, David S +2 more
openaire +4 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
Tidal Dissipation Regimes among the Short-period Exoplanets
The Astrophysical Journal Letters, 2023 The efficiency of tidal dissipation provides a zeroth-order link to a planet’s physical properties. For super-Earth and sub-Neptune planets in the range R _⊕ ≲ R _p ≲ 4 R _⊕ , particularly efficient dissipation (i.e., low tidal quality factors) may ...
Emma M. Louden +2 more
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exoMMR: A New Python Package to Confirm and Characterize Mean Motion Resonances
The Astronomical Journal, 2023 The study of orbital resonances allows for the constraint of planetary properties of compact systems. We can predict a system’s resonances by observing the orbital periods of the planets, as planets in or near mean motion resonance (MMR) have period ...
Mariah G. MacDonald +4 more
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