NASA’s Pandora SmallSat Mission: Simulated Modeling and Retrieval of Near-infrared Exoplanet Transmission Spectra [PDF]
The Astronomical JournalPandora is a SmallSat mission dedicated to understanding exoplanets and their host stars by disentangling the impact of stellar heterogeneity on exoplanet transmission spectra.
Yoav Rotman +24 more
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Detecting Atmospheric CO2 Trends as Population-level Signatures for Long-term Stable Water Oceans and Biotic Activity on Temperate Terrestrial Exoplanets [PDF]
The Astrophysical JournalIdentifying key observables is essential for enhancing our knowledge of exoplanet habitability and biospheres, as well as improving future mission capabilities.
Janina Hansen +8 more
doaj +2 more sources
Observing spatial and temporal variations in the atmospheric chemistry of rocky exoplanets: Prospects for mid-infrared spectroscopy [PDF]
Astronomy & AstrophysicsContext. Future telescopes such as the Large Interferometer For Exoplanets (LIFE) will enable the unprecedented characterisation of the atmospheres of nearby rocky exoplanets, probing mid-infrared signatures of key molecules (e.g. CO2, H2O, O3, and CH4).
Braam M., Angerhausen D.
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Influence of stellar variability on the determination of the radius during a transit of an exoplanet
EPJ Web of Conferences, 2011 Stellar variability can affect the estimate of an exoplanet radius measured during a transit. We developed a transit light curve model which includes stellar spots.
Désert J.-M. +3 more
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A qualitative assessment of limits of active flight in low density atmospheres [PDF]
Scientific ReportsExoplanet atmospheres are expected to vary significantly in thickness and chemical composition, leading to a continuum of differences in surface pressure and atmospheric density.
Mihkel Pajusalu +3 more
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AstroSkyFlow: An Astronomical Sky Image Flow Simulator for Time Domain Survey Validation and Machine Learning [PDF]
The Astronomical JournalModern time-domain optical surveys produce massive data volumes that require robust, high-fidelity simulated datasets for developing and validating automated pipelines and machine learning (ML) models.
Kexin Li +7 more
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Planetary Habitability Under the Light of a Rapidly Changing Star [PDF]
The Astronomical JournalPlanetary atmospheric energy budgets primarily depend on stellar incident flux. However, stellar variability can have major consequences for the evolution of planetary climates. In this work, we evaluate how stellar variability influences the equilibrium
Tara Fetherolf +5 more
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Variable Irradiation on 1D Cloudless Eccentric Exoplanet Atmospheres [PDF]
The Astrophysical Journal, 2021 Abstract Exoplanets on eccentric orbits experience an incident stellar flux that can be markedly larger at periastron versus apoastron. This variation in instellation can lead to dramatic changes in atmospheric structure in regions of the atmosphere where the radiative and advective heating/cooling timescales are shorter than the orbital
L. C. Mayorga +4 more
openaire +2 more sources
Extreme weather variability on hot rocky exoplanet 55 Cancri e explained by magma temperature–cloud feedback [PDF]
Proceedings of the National Academy of Sciences of the United States of AmericaEdwin Kite, Kaitlyn Loftus, Bowen Fan
exaly +2 more sources