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Quantum sensing for NASA science missions. [PDF]
EPJ Quantum TechnolMercer CR +6 more
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Frequency-comb-calibrated Laser Heterodyne Radiometry for Precision Radial Velocity Measurements. [PDF]
Astrophys J Suppl SerCole RK +8 more
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Proceedings of the National Academy of Sciences of the United States of America, 2023 Nonlinearity in photochemical systems is known to allow self-sustained oscillations, but they have received little attention in studies of planetary atmospheres. Here, we present a unique, self-oscillatory solution for ozone chemistry of an exoplanet from a numerical simulation using a fully coupled, three-dimensional (3D) atmospheric chemistry ...
Jun Yang, Yongyun Hu
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POSEIDON: A Multidimensional Atmospheric Retrieval Code for Exoplanet Spectra [PDF]
Journal of Open Source Software, 2023 Exoplanet atmospheres are a dynamic and fast-changing field at the frontier of modern astronomy. Telescope observations can reveal the chemical composition, temperature, cloud properties, and (potentially) the habitability of these remote worlds ...
Ryan J Macdonald
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A Test of the Dedalus Software for Exoplanet Atmospheric Dynamics
Research Notes of the AASAbstract Studying exoplanet flow and variability requires solving atmospheric dynamics equations accurately. Here we use the shallow-water equations to evaluate and employ Dedalus 3 , a spectral method-based software package for solving differential equations.
Quentin Changeat
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Atmospheric Seasonality as an Exoplanet Biosignature [PDF]
Astrophysical Journal Letters, 2018 Current investigations of exoplanet biosignatures have focused on static evidence of life, such as the presence of biogenic gases like O2 or CH4.
Timothy Lyons +2 more
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Coupling the Atmospheric and Dynamical Evolution of Close-in Exoplanets
The vast majority of the detected exoplanets orbit in less than a month around their star, in extreme conditions unmet in the Solar System. The demographics of these close-in planets exhibit a striking feature: the lack of Neptune-size worlds on very short orbits, also dubbed the "Neptunian desert", which challenges our understanding of planetary ...Omar Attia, Vincent Bourrier
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2021
Venus is comparable to the Earth in size and overall distance from the Sun, but is outside of a defined “habitable zone” in which water can exist in liquid form. The deep atmosphere of Venus provides a hostile environment for life. However, recent work suggests that the atmosphere at cloud altitudes, which includes regions with temperatures and ...
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Venus is comparable to the Earth in size and overall distance from the Sun, but is outside of a defined “habitable zone” in which water can exist in liquid form. The deep atmosphere of Venus provides a hostile environment for life. However, recent work suggests that the atmosphere at cloud altitudes, which includes regions with temperatures and ...
openaire +1 more source
2019
Characterization of planetary atmospheres has been always a challenge. While the next generation of facilities, such as E-ELT, JWST, and ARIEL, will help to improve the status, the number of well-characterized exoplanet atmospheres will still be limited.
Molaverdikhani, K. +2 more
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Characterization of planetary atmospheres has been always a challenge. While the next generation of facilities, such as E-ELT, JWST, and ARIEL, will help to improve the status, the number of well-characterized exoplanet atmospheres will still be limited.
Molaverdikhani, K. +2 more
openaire +1 more source
2021
The characterization of exoplanets applying high-resolution transmission spectroscopy ini- tiated a new era making it possible to trace atmospheric signature at high altitudes in exoplanet atmospheres and to determine atmospheric properties which enrich our under- standing of the formation and evolution of the solar system.
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The characterization of exoplanets applying high-resolution transmission spectroscopy ini- tiated a new era making it possible to trace atmospheric signature at high altitudes in exoplanet atmospheres and to determine atmospheric properties which enrich our under- standing of the formation and evolution of the solar system.
openaire +1 more source