Results 41 to 50 of about 58,337 (174)

MOVES – IV. Modelling the influence of stellar XUV-flux, cosmic rays, and stellar energetic particles on the atmospheric composition of the hot Jupiter HD 189733b [PDF]

, 2020
Hot Jupiters provide valuable natural laboratories for studying potential contributions of highenergy radiation to prebiotic synthesis in the atmospheres of exoplanets.
Patrick Barth, Christiane Helling, Eva E. Stueken, V. Bourrier, N. Mayne, P. Rimmer, M. Jardine, A. Vidotto, P. Wheatley, R. Fares   +9 more
semanticscholar   +1 more source

Observations of scattered light from exoplanet atmospheres [PDF]

Astronomy & Astrophysics
Optical phase curves of hot Jupiters can reveal global scattering properties. We implemented a Bayesian inference framework for optical phase curves with flux contributions from: reflected light from a potentially inhomogeneous atmosphere, thermal ...
Brett M. Morris, Kevin Heng, D. Kitzmann
semanticscholar   +1 more source

A Lack of Variability between Repeated Spitzer Phase Curves of WASP-43b

The Astronomical Journal, 2023
Though the global atmospheres of hot Jupiters have been extensively studied using phase curve observations, the level of time variability in these data is not well constrained.
Matthew M. Murphy, Thomas G. Beatty, Michael T. Roman, Isaac Malsky, Alex Wingate, Grace Ochs, L. Cinque, Hayley Beltz, Emily Rauscher, Eliza M.-R. Kempton, Kevin B. Stevenson   +10 more
doaj   +1 more source

Atmospheric Dynamics on Terrestrial Planets: The Seasonal Response to Changes in Orbital, Rotational, and Radiative Timescales [PDF]

Astrophysical Journal, 2019
Thousands of exoplanets have been detected to date, and with future planned missions this tally will increase. Understanding the climate dependence on the planetary parameters is vital for the study of terrestrial exoplanet habitability.
Ilai Guendelman, Y. Kaspi
semanticscholar   +1 more source

Transit Timing and Occultation Depth Variability of 55 Cancri e: Evidence for Volcanic and Atmospheric Activities

Theoretical and Natural Science
55 Cancri e (55 Cnc e), a super-Earth with an orbiting period of 0.73 days, is very close to its host star 55 Cancri. The surface of this planet is supposed to be covered with hot lava.
Xingdong Wang, Jerry Cheng, Jiachao Yin, Yukai Fu   +3 more
semanticscholar   +1 more source

Helium Escape in Context: Comparative Signatures of Four Close-in Exoplanets

The Astrophysical Journal
Observations of escaping atmospheres on close-in exoplanets show a wide range in the strength and morphology of He I 10830 Å and H I absorption. Scaling relations attempt to link the He I signal to X-ray and UV irradiation, mass loss, and bulk planetary ...
Anna Ruth Taylor, Tommi T. Koskinen, Chenliang Huang, Anthony Arfaux, Panayotis Lavvas   +4 more
doaj   +1 more source

Studying the variability of the He triplet to understand the detection limits of evaporating exoplanet atmospheres

Astronomy & Astrophysics
With more than a dozen significant detections, the helium triplet has emerged as a key tracer of evaporating exoplanet atmospheres. This near-infrared feature can be observed from the ground and holds great promise, especially with upcoming observations provided by new-generation instruments such as the Near Infrared Planet Searcher (NIRPS).
Mercier, Samson Jules, Dumusque, Xavier, Bourrier, Vincent, Al Moulla, Khaled Sleiman, Cretignier, Michaël, Dethier, William, Lo Curto, Gaspare, Figueira, Pedro Ricardo, Lovis, Christophe, Pepe, Francesco Alfonso, Santos, Nuno C., Udry, Stéphane, Wildi, François, Allart, Romain, Baron, Frédérique, Bouchy, François, Carmona, Andres, Cointepas, Marion, Doyon, René, Frensch, Yolanda Gerardina Cécile, Grieves, Nolan, Mignon, Lucile, Nielsen, Louise Dyregaard   +22 more
openaire   +3 more sources

A Panchromatic Characterization of the Evening and Morning Atmosphere of WASP-107 b: Composition and Cloud Variations, and Insight into the Effect of Stellar Contamination

The Astronomical Journal
Limb-resolved transmission spectroscopy has the potential to transform our understanding of exoplanetary atmospheres. By separately measuring the transmission spectra of the evening and morning limbs, these atmospheric regions can be individually ...
Matthew M. Murphy, Thomas G. Beatty, Everett Schlawin, Taylor J. Bell, Michael Radica, Thomas D. Kennedy, Nishil Mehta, Luis Welbanks, Michael R. Line, Vivien Parmentier, Thomas P. Greene, Sagnick Mukherjee, Jonathan J. Fortney, Kazumasa Ohno, Lindsey Wiser, Anastasia Triantafillides, Emily Rauscher, Isaac R. Edelman, Marcia J. Rieke   +18 more
doaj   +1 more source

Probing the geological setting of exoplanets through atmospheric analysis: Using Mars as a test case [PDF]

Icarus (New York, N.Y. 1962)
One of the frontier research fields of exoplanetary science is the study of the composition and variability of exoplanetary atmospheres. This field is now moving from the gas giant planets towards the smaller and colder telluric planets, and future ...
Monica Rainer, E. Balbi, Francesco Borsa, Paola Cianfarra, A. Harutyunyan, Silvano Tosi   +5 more
semanticscholar   +1 more source

Wind-AE: A Fast, Open-source 1D Photoevaporation Code with Metal and Multifrequency X-Ray Capabilities

The Astrophysical Journal
Throughout their lives, short-period exoplanets (
Madelyn I. Broome, Ruth Murray-Clay, John R. McCann, James E. Owen   +3 more
doaj   +1 more source