Results 41 to 50 of about 14,314 (230)

CHARACTERIZING TRANSITING EXOPLANET ATMOSPHERES WITH JWST [PDF]

The Astrophysical Journal, 2016
ABSTRACT We explore how well spectra from the James Webb Space Telescope (JWST) will likely constrain bulk atmospheric properties of transiting exoplanets. We start by modeling the atmospheres of archetypal hot Jupiter, warm Neptune, warm sub-Neptune, and cool super-Earth planets with atmospheres that are clear, cloudy, or of high mean ...
Greene, Thomas P, Line, Michael R, Montero, Cezar, Fortney, Jonathan J, Lustig-Yaeger, Jacob, Luther, Kyle   +5 more
openaire   +4 more sources

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

Exoplanet Characterization by Multi-Observatory Transit Photometry with TESS and CHEOPS [PDF]

, 2017
Space-based photometric surveys have discovered large numbers of planets transiting other stars, but these observe in a single band-pass and yield only the planet radius, orbital period, and transit duration.
Gaidos, E., Heng, K., Kitzmann, D.
core   +2 more sources

A Catalog of Exoplanet Atmospheric Retrieval Codes

Research Notes of the AAS, 2023
Abstract Exoplanet atmospheric retrieval is a computational technique widely used to infer properties of planetary atmospheres from remote spectroscopic observations. Retrieval codes typically employ Bayesian sampling algorithms or machine learning approaches to explore the range of atmospheric properties (e.g., chemical composition ...
MacDonald, Ryan, Batalha, Natasha
openaire   +3 more sources

Transiting Exoplanet Studies and Community Targets for JWST's Early Release Science Program [PDF]

, 2016
The James Webb Space Telescope will revolutionize transiting exoplanet atmospheric science due to its capability for continuous, long-duration observations and its larger collecting area, spectral coverage, and spectral resolution compared to existing ...
Agol, Eric, Angerhausen, Daniel, Barstow, Joanna K., Bean, Jacob L., Beichman, Charles, Birkmann, Stephan M., Burrows, Adam, Charbonneau, David, Cowan, Nicolas B., Crouzet, Nicolas, Cubillos, Patricio E., Curry, S. M., Dalba, Paul A., de Wit, Julien, Deming, Drake, Desert, Jean-Michel, Doyon, Rene, Dragomir, Diana, Ehrenreich, David, Fortney, Jonathan J., Fraine, Jonathan, Gibson, Neale P., Gizis, John E., Greene, Thomas P., Harrington, Joseph, Heng, Kevin, Kataria, Tiffany, Kempton, Eliza M. -R., Kilpatrick, Brian M., Knutson, Heather, Kreidberg, Laura, Krick, J. E., Lafreniere, David, Lagage, Pierre-Olivier, Lewis, Nikole K., Line, Michael R., Lopez-Morales, Mercedes, Lothringer, Joshua D., Madhusudhan, Nikku, Mandell, Avi M., Morley, Caroline V., Munoz, Antonio Garcia, Rocchetto, Marco, Schlawin, Everett, Shkolnik, Evgenya L., Shporer, Avi, Sing, David K., Stevenson, Kevin B., Todorov, Kamen O., Tucker, Gregory S., Valenti, Jeff A., Wakeford, Hannah R.   +51 more
core   +2 more sources

The Radiation Environment of Exoplanet Atmospheres

Challenges, 2014
Exoplanets are born and evolve in the radiation and particle environment created by their host star. The host star’s optical and infrared radiation heats the exoplanet’s lower atmosphere and surface, while the ultraviolet, extreme ultraviolet and X ...
Jeffrey L. Linsky
doaj   +1 more source

Magnetic Scaling Laws for the Atmospheres of Hot Giant Exoplanets

, 2011
We present scaling laws for advection, radiation, magnetic drag and ohmic dissipation in the atmospheres of hot giant exoplanets. In the limit of weak thermal ionization, ohmic dissipation increases with the planetary equilibrium temperature (T_eq ...
Agol, Baraffe, Batygin, Batygin, Burrows, Burrows, Charbonneau, Cowan, Crossfield, Dobbs-Dixon, Fortney, Goody, Hansen, Knutson, Knutson, Kristen Menou, Laughlin, Lewis, Liu, Miller, Miller, Perna, Perna, Rauscher, Rauscher, Showman, Showman, Showman, Showman, Winn   +29 more
core   +1 more source

Commissioning an Inexpensive Off‐The‐Shelf Spectrograph for Radial‐Velocity Studies

Astronomische Nachrichten, EarlyView.
ABSTRACT We present a way to set up an inexpensive out of the shelf spectrograph at a local observatory. Stability and resolution of the spectrograph are high enough for radial velocity determination of binary stars or determination of stellar characteristics. Even some exoplanets might be detectable via the radial velocity method.
Lukas Stock, Andreas Schrimpf
wiley   +1 more source

Characterizing the Atmospheric Dynamics of HD 209458b-like Hot Jupiters Using AI-driven Image Recognition/Categorization

The Astrophysical Journal, 2023
In order to understand the results of recent observations of exoplanets, models have become increasingly complex. Unfortunately, this increases both the computational cost and output size of said models.
F. Sainsbury-Martinez, P. Tremblin, M. Mancip, S. Donfack, E. Honore, M. Bourenane   +5 more
doaj   +1 more source

Out There No One Has a Right to Die

Bioethics, EarlyView.
ABSTRACT The eventual goal of space exploration is to colonize exoplanets and their moons outside our solar system. This is a dangerous and immoral endeavour. The extraterrestrial life forms encountered would be hostile, vulnerable or both, and the descendants of the original pioneers would be involuntarily exposed to hazardous conditions and ...
Matti Häyry
wiley   +1 more source