Results 31 to 40 of about 6,459 (144)

Theoretical Spectra of Terrestrial Exoplanet Surfaces [PDF]

, 2012
We investigate spectra of airless rocky exoplanets with a theoretical framework that self-consistently treats reflection and thermal emission. We find that a silicate surface on an exoplanet is spectroscopically detectable via prominent Si-O features in ...
Batalha, Best, Bethany L. Ehlmann, Borucki, Borucki, Cheek, Clark, Clark, Cochran, Cowan, de Pater, Drilling, Farmer, Gautier, Koch, Miller-Ricci, Muirhead, Pieters, Pieters, RELAB Spectral Database, Renyu Hu, Rogers, Salisbury, Sara Seager, Seager, Seager, Sobolev, Sprague, Winn   +28 more
core   +2 more sources

Colorado Ultraviolet Transit Experiment Data Simulator [PDF]

, 2019
The Colorado Ultraviolet Transit Experiment (CUTE) is a 6U NASA CubeSat carrying on-board a low-resolution (R~2000--3000), near-ultraviolet (2500--3300 {\AA}) spectrograph. It has a rectangular primary Cassegrain telescope to maximize the collecting area.
Egan, Arika, Fleming, Brian T., Fossati, Luca, France, Kevin, Koskinen, Tommi, Rüdisser, Hannah T., Sreejith, Aickara Gopinathan, Steller, Manfred   +7 more
core   +2 more sources

A giant comet-like cloud of hydrogen escaping the warm Neptune-mass exoplanet GJ 436b [PDF]

, 2015
Exoplanets orbiting close to their parent stars could lose some fraction of their atmospheres because of the extreme irradiation. Atmospheric mass loss primarily affects low-mass exoplanets, leading to suggest that hot rocky planets might have begun as ...
A Ekenbäck, A Lanotte, A Lecavelier des Etangs, A Lecavelier des Etangs, A Lecavelier des Etangs, A Léger, A Vidal-Madjar, Alain Lecavelier des Etangs, Alfred Vidal-Madjar, B Jackson, B-O Demory, D Ehrenreich, D Ehrenreich, D Ehrenreich, David Ehrenreich, David K. Sing, ED Lopez, F Pepe, F Pont, Guillaume Hébrard, HA Knutson, HA Knutson, I Ribas, J Sanz-Forcada, Jean-Michel Désert, JL Linsky, JL Linsky, JM Chadney, JR Kulow, K France, K Poppenhaeger, L Fossati, M Holmström, NM Batalha, Peter J. Wheatley, Stéphane Udry, TA Davis, TT Koskinen, V Bourrier, V Bourrier, V Bourrier, Vincent Bourrier, WB Hubbard, Xavier Bonfils, Xavier Delfosse   +44 more
core   +4 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, Kenneth Arnold, Emily Rauscher, Isaac R. Edelman, Marcia J. Rieke   +18 more
doaj   +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

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 Temperature and Abundance Retrieval Method for Exoplanet Atmospheres

, 2009
We present a new method to retrieve molecular abundances and temperature profiles from exoplanet atmosphere photometry and spectroscopy. We run millions of 1D atmosphere models in order to cover the large range of allowed parameter space, and present ...
Madhusudhan, N., Seager, S.
core   +1 more source

A Cross‐Correlation Method to Evaluate Wind Retrieval Accuracy on Mars Using Simulated Microwave Limb Sounder Observations

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract While aspects such as the temperature and composition of the Martian atmosphere are relatively well known thanks to observations from numerous space missions, Martian atmospheric dynamics remain poorly constrained due to the scarcity of direct wind measurements. The use of microwave limb sounders to retrieve winds has been proposed in the past,
S. Jurado‐Fortuna, F. González‐Galindo, D. Shulyak, L. M. Lara   +3 more
wiley   +1 more source

Seasonal Changes in the Atmosphere of HD 80606 b Observed with JWST’s NIRSpec/G395H

The Astronomical Journal
High-eccentricity gas giant planets serve as unique laboratories for studying the thermal and chemical properties of H/He-dominated atmospheres. One of the most extreme cases is HD 80606 b—a hot Jupiter orbiting a Sun-like star with an eccentricity of 0 ...
James T. Sikora, Jason F. Rowe, Jared Splinter, Saugata Barat, Lisa Dang, Nicolas B. Cowan, Thomas Barclay, Knicole D. Colón, Jean-Michel Désert, Stephen R. Kane, Joe Llama, Hinna Shivkumar, Keivan G. Stassun, Elisa V. Quintana   +13 more
doaj   +1 more source

Transmission Spectroscopy of the Lowest-density Gas Giant: Metals and a Potential Extended Outflow in HAT-P-67b

The Astronomical Journal, 2023
Extremely low-density exoplanets are tantalizing targets for atmospheric characterization because of their promisingly large signals in transmission spectroscopy.
Aaron Bello-Arufe, Heather A. Knutson, João M. Mendonça, Michael M. Zhang, Samuel H. C. Cabot, Alexander D. Rathcke, Ana Ulla, Shreyas Vissapragada, Lars A. Buchhave   +8 more
doaj   +1 more source