Results 51 to 60 of about 59,298 (206)

Observing Isotopologue Bands in Terrestrial Exoplanet Atmospheres with the James Webb Space Telescope: Implications for Identifying Past Atmospheric and Ocean Loss [PDF]

Astronomical Journal, 2019
Terrestrial planets orbiting M dwarfs may soon be observed with the James Webb Space Telescope (JWST) to characterize their atmospheric composition and search for signs of habitability or life.
A. Lincowski, J. Lustig-Yaeger, V. Meadows   +2 more
semanticscholar   +1 more source

Emergent Exoplanet Flux: Review of the Spitzer Results [PDF]

, 2008
Observations using the Spitzer Space Telescope provided the first detections of photons from extrasolar planets. Spitzer observations are allowing us to infer the temperature structure, composition, and dynamics of exoplanet atmospheres.
Bouchy, Charbonneau, Demory, Drake Deming, Gillon, Morales-Calderon, Showman   +6 more
core   +1 more source

Simultaneous characterization of the atmospheres, surfaces, and exomoons of nearby rocky exoplanets

Earth and Planetary Physics, 2018
Atmospheric composition is an important indicator of habitability and life. The presence or absence of a large exomoon around an Earth-size exoplanet could have important consequences for planet climate stability.
WenLiang Cui, JinSu Zhang, Frederic Schmidt, Duo Cui, XiaoMeng Huang, Tong Li, Feng Tian   +6 more
doaj   +1 more source

Clear and Cloudy Exoplanet Forecasts for JWST: Maps, Retrieved Composition, and Constraints on Formation with MIRI and NIRCam [PDF]

Astronomical Journal, 2018
The James Webb Space Telescope (JWST) will measure exoplanet transmission and eclipse spectroscopy at unprecedented precisions to better understand planet structure, dynamics, chemistry, and formation.
E. Schlawin, T. Greene, M. Line, J. Fortney, M. Rieke   +4 more
semanticscholar   +1 more source

Bayesian analysis of interiors of HD 219134b, Kepler-10b, Kepler-93b, CoRoT-7b, 55 Cnc e, and HD 97658b using stellar abundance proxies [PDF]

, 2016
Using a generalized Bayesian inference method, we aim to explore the possible interior structures of six selected exoplanets for which planetary mass and radius measurements are available in addition to stellar host abundances: HD~219134b, Kepler-10b ...
Dorn, C., Hinkel, N. R., Venturini, J.
core   +2 more sources

2.5D retrieval of atmospheric properties from exoplanet phase curves: application to WASP-43b observations [PDF]

Monthly notices of the Royal Astronomical Society, 2019
We present a novel retrieval technique that attempts to model phase curve observations of exoplanets more realistically and reliably, which we call the 2.5-dimensional (2.5D) approach.
Patrick G J Irwin, V. Parmentier, Jake Taylor, J. Barstow, S. Aigrain, Elspeth K. H. Lee, Ryan Garland   +6 more
semanticscholar   +1 more source

Atmospheric Seasonality as an Exoplanet Biosignature [PDF]

, 2018
Current investigations of exoplanet biosignatures have focused on static evidence of life, such as the presence of biogenic gases like O2 or CH4.
S. Olson, E. Schwieterman, C. Reinhard, A. Ridgwell, S. Kane, V. Meadows, T. Lyons   +6 more
semanticscholar   +1 more source

Transiting Exoplanets with JWST

, 2008
The era of exoplanet characterization is upon us. For a subset of exoplanets -- the transiting planets -- physical properties can be measured, including mass, radius, and atmosphere characteristics.
A. Burrows, A. Burrows, A. Vidal-Madjar, A. Wolszczan, A.P. Showman, B.S. Gaudi, D. Charbonneau, D. Charbonneau, D. Deming, D. Deming, D. Ehrenreich, D. Ehrenreich, D. Valencia, D.J. Des Marais, G. Basri, G. Chauvin, G. Chauvin, G. Tinetti, G.G. Fazio, G.H. Rieke, H.A. Knutson, H.A. Knutson, I. Hubeny, J. Harrington, J. Harrington, J. Lederberg, J.A. Valenti, J.E. Lovelock, J.P. Gardner, J.R. Houck, L. Zeng, L.J. Richardson, M. Gillon, M. Gillon, M. Morales-Calderòn, M.R. Swain, N.B. Cowan, P. Nutzman, P.H. Hauschildt, P.R. Christensen, R. Neuhäuser, R. Silvotti, R.L. Kurucz, R.P. Butler, R.P. Butler, S. Redfield, S. Seager, S. Seager, T.M. Brown, T.M. Brown   +49 more
core   +1 more source

Observations of Exoplanet Atmospheres

, 2015
Detailed characterization of an extrasolar planet's atmosphere provides the best hope for distinguishing the makeup of its outer layers, and the only hope for understanding the interplay between initial composition, chemistry, dynamics & circulation, and
Crossfield, Ian J. M.
core   +1 more source

Atmospheric C/O Ratios of Sub-Neptunes with Magma Oceans: Homemade rather than Inherited

The Astrophysical Journal Letters
Recently, the James Webb Space Telescope has enabled detailed spectroscopic characterization of sub-Neptune atmospheres. With detections of carbon- and oxygen-bearing species such as CO, CO _2 , CH _4 , and H _2 O, a central question is whether the ...
Aaron Werlen, Caroline Dorn, Hilke E. Schlichting, Simon L. Grimm, Edward D. Young   +4 more
doaj   +1 more source