Results 101 to 110 of about 1,870,265 (176)

Interpolation and Synthesis of Sparse Samples in Exoplanet Atmospheric Modeling [PDF]

This paper highlights methods from geostatistics that are relevant to the interpretation, intercomparison, and synthesis of atmospheric model data, with a specific application to exoplanet atmospheric modeling.
Eric T. Wolf, Thomas J. Fauchez, Fauchez, Thomas J., Ravi K. Kopparapu, Wolf, Eric T., Kopparapu, Ravi K., Jacob Haqq-Misra, Haqq-Misra, Jacob   +7 more
core   +1 more source

A Spitzer Space Telescope Exploration Science Program to Search for Y-dwarf Variability

The Astronomical Journal
We present the results of a Spitzer Space Telescope Exploration Science Program to search for and characterize variability in Y dwarfs. We observed 14 Y dwarfs over a 24 hr period at [3.6] and [4.5] and then repeated the observations a few months later ...
Michael C. Cushing, Jesica L. Trucks, Kevin K. Hardegree-Ullman, Adam J. Burgasser, Sean J. Carey, Jonathan J. Fortney, Christopher R. Gelino, John E. Gizis, J. Davy Kirkpatrick, Sandy Leggett, Gregory N. Mace, Mark S. Marley, Caroline V. Morley   +12 more
doaj   +1 more source

Atmospheric Waves Driving Variability and Cloud Modulation on a Planetary-mass Object

The Astrophysical Journal
Planetary-mass objects and brown dwarfs at the transition ( T _eff ∼ 1300 K) from relatively red L dwarfs to bluer mid-T dwarfs show enhanced spectrophotometric variability.
Michael K. Plummer, Ji Wang, Étienne Artigau, René Doyon, Genaro Suárez   +4 more
doaj   +1 more source

Prioritizing High-Precision Photometric Monitoring of Exoplanet and Brown Dwarf Companions with JWST -- Strategic Exoplanet Initiatives with HST and JWST White Paper [PDF]

We advocate for the prioritization of high-precision photometric monitoring of exoplanet and brown dwarf companions to detect brightness variability arising from features in their atmospheres.
Chen, Xueqing, Adams, Arthur D., Bubb, Emma E., Vos, Johanna M., Martinez, Raquel A., Zhang, Zhoujian, Rickman, Emily L., Suárez, Genaro, Factor, Samuel M., Metchev, Stanimir A., Zhou, Yifan, Sutlieff, Ben J., Girard, Julien H., Manjavacas, Elena, Liu, Pengyu, Dupuy, Trent J., Bowler, Brendan P., Kim, Bokyoung   +17 more
core  

The Polar Vortex Hypothesis: Evolving, Spectrally Distinct Polar Regions Explain Short- and Long-term Light-curve Evolution and Color–Inclination Trends in Brown Dwarfs and Giant Exoplanets

The Astrophysical Journal Letters
Recent studies revealed viewing-angle-dependent color and spectral trends in brown dwarfs, as well as long-term photometric variability (∼100 hr). The origins of these trends are yet unexplained.
Nguyen Fuda, Dániel Apai
doaj   +1 more source

AstroSkyFlow: An Astronomical Sky Image Flow Simulator for Time Domain Survey Validation and Machine Learning

The Astronomical Journal
Modern 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, Yicheng Rui, Fabo Feng, Shuyue Zheng, Anton Pomazan, Yiyang Guo, Jie Zheng, Lin-Qiao Jiang   +7 more
doaj   +1 more source

Planetary Habitability Under the Light of a Rapidly Changing Star

The Astronomical Journal
Planetary 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, Sadie G. Welter, Colby M. Ostberg, Stephen R. Kane, Rory Barnes, Emilie R. Simpson   +5 more
doaj   +1 more source

Fully fluorinated non-carbon compounds NF₃ and SF₆ as ideal technosignature gases. [PDF]

Sci Rep, 2023
Seager S, Petkowski JJ, Huang J, Zhan Z, Ravela S, Bains W.   +5 more
europepmc   +1 more source

Analogous response of temperate terrestrial exoplanets and Earth's climate dynamics to greenhouse gas supplement. [PDF]

Sci Rep, 2023
Hochman A, Komacek TD, De Luca P.
europepmc   +1 more source

GARLIC - the Generic Atmospheric Radiation Line-by-line IR Code for exoplanet atmospheric spectroscopy

, 2019
The Generic Atmospheric Radiation Line-by-line Infrared Code or GARLIC has originally been developed for Earth atmospheric remote sensing and, more recently, has been used extensively for exoplanet studies.
Schreier, Franz
core