Results 71 to 80 of about 2,811,519 (263)

NIMBUS: The Near-Infrared Multi-Band Ultraprecise Spectroimager for SOFIA [PDF]

, 2012
We present a new and innovative near-infrared multi-band ultraprecise spectroimager (NIMBUS) for SOFIA. This design is capable of characterizing a large sample of extrasolar planet atmospheres by measuring elemental and molecular abundances during ...
Amatucci, Edward, Blake, Cullen, Budinoff, Jason, Burgasser, Adam, Burrows, Adam, Clampin, Mark, Conroy, Charlie, Deming, L. Drake, Dunham, Edward, Foltz, Roger, Gong, Qian, Knutson, Heather, Madhusudhan, Nikku, Mandell, Avi, McElwain, Michael W., Muench, Theodore, Murray-Clay, Ruth, Peabody, Hume, Rauscher, Bernard, Rinehart, Stephen A., Spiegel, David S., Villanueva, Geronimo, Woodgate, Bruce   +22 more
core   +3 more sources

Vertical structure of an exoplanet's atmospheric jet stream. [PDF]

Nature
Ultra-hot Jupiters, an extreme class of planets not found in our solar system, provide a unique window into atmospheric processes. The extreme temperature contrasts between their day- and night-sides pose a fundamental climate puzzle: how is energy ...
J. Seidel, B. Prinoth, Lorenzo Pino, Leonardo A. dos Santos, Hritam Chakraborty, V. Parmentier, E. Sedaghati, J. Wardenier, C. F. Jentink, Maria Rosa, Zapatero Osorio, R. Allart, D. Ehrenreich, M. Lendl, Giulia Roccetti, Yuri Damasceno, V. Bourrier, J. Lillo-Box, H. J. Hoeijmakers, Enric Pall´e, Nuno Santos, Alejandro Su´arez Mascare˜no, Sérgio G. Sousa, Hugo Tabernero, F. A. Pepe   +24 more
semanticscholar   +1 more source

Photochemistry in Hot H2-dominated Exoplanet Atmospheres [PDF]

Astrophysical Journal, 2019
Photochemistry has the potential to substantially impact the atmospheric composition of exoplanets with consequences on the radiative transfer, thermal structure, and dynamics of the atmospheres, particularly in UV-rich stellar environments.
B. Fleury, M. Gudipati, B. Henderson, M. Swain   +3 more
semanticscholar   +1 more source

VIBES: Visual Binary Exoplanet survey with SPHERE [PDF]

, 2020
Recent surveys indicate that planets in binary systems are more abundant than previously thought, which is in agreement with theoretical work on disc dynamics and planet formation in binaries.
J. Hagelberg, N. Engler, C. Fontanive, S. Daemgen, S. Quanz, J. Kuhn, M. Reggiani, M. Meyer, R. Jayawardhana, V. B. I. F. T. Physics, Astrophysics, E. Zurich, Switzerland., G. Observatory, U. Geneva, Center for Space, Habitability, U. Bern, Bern, Institute of Theoretical Astrophysics, K. Leuven, Celestijnlaan 200D, Leuven, Belgium, U. Michigan, A. Department, Usa, D. Astronomy, Cornell University, Ithaca, Ny, NasaGsfc   +31 more
semanticscholar   +1 more source

Know the Star, Know the Planet. III. Discovery of Late-Type Companions to Two Exoplanet Host Stars [PDF]

, 2015
We discuss two multiple star systems that host known exoplanets: HD 2638 and 30 Ari B. Adaptive optics imagery revealed an additional stellar companion to both stars.
Baranec, Christoph, Hartkopf, William I., Law, Nicholas M., Mason, Brian D., Riddle, Reed L., Roberts, Jr., Lewis C., Tokovinin, Andrei   +6 more
core   +3 more sources

Eccentric debris belts reveal the dynamical history of the companion exoplanet

Monthly Notices of the Royal Astronomical Society, 2022
ABSTRACT In recent years, a number of eccentric debris belts have been observed in extrasolar systems. The most common explanation for their shape is the presence of a nearby eccentric planetary companion. The gravitational perturbation from such a companion would induce periodic eccentricity variations on the planetesimals in the belt ...
Laetitia Rodet, Dong Lai
openaire   +2 more sources

The Gemini Planet Imager Exoplanet Survey: Dynamical Mass of the Exoplanet β Pictoris b from Combined Direct Imaging and Astrometry [PDF]

The Astronomical Journal, 2020
Abstract We present new observations of the planet β Pictoris b from 2018 with the Gemini Planet Imager (GPI), the first GPI observations following conjunction. Based on these new measurements, we perform a joint orbit fit to the available relative astrometry from ground-based imaging, the Hipparcos Intermediate Astrometric Data (IAD ...
Stephen J. Goodsell, Maxwell A. Millar-Blanchaer, Anand Sivaramakrishnan, Schuyler Wolff, Sloane Wiktorowicz, Li Wei Hung, J. Bulger, J. Bulger, Eric L. Nielsen, Jennifer Patience, Pascale Hibon, Marshall D. Perrin, Dmitry Savransky, Thomas M. Esposito, S. Mark Ammons, Jean-Baptiste Ruffio, Christian Marois, Christian Marois, Travis Barman, Tara Cotten, James R. Graham, Fredrik T. Rantakyrö, Patrick Ingraham, Meiji M. Nguyen, Sandrine Thomas, Jérôme Maire, K. Ward-Duong, David Palmer, Vanessa P. Bailey, Jason J. Wang, Bruce Macintosh, Inseok Song, Benjamin L. Gerard, Benjamin L. Gerard, Alexandra Z. Greenbaum, Katherine B. Follette, Franck Marchis, Gaspard Duchene, Gaspard Duchene, Lisa Poyneer, Didier Saumon, Johannes Sahlmann, René Doyon, Laurent Pueyo, Robert J. De Rosa, J. Kent Wallace, Abhijith Rajan, Adam C. Schneider, Rémi Soummer, Michael P. Fitzgerald, Rebecca Oppenheimer, Quinn Konopacky, Julien Rameau, Julien Rameau, James E. Larkin, Jeffrey Chilcote, Stanimir Metchev, Stanimir Metchev, Paul Kalas, Paul Kalas, Paul Kalas, Mark S. Marley   +61 more
openaire   +9 more sources

High Resolution Transmission Spectroscopy as a Diagnostic for Jovian Exoplanet Atmospheres: Constraints from Theoretical Models

, 2014
We present high resolution transmission spectra of giant planet atmospheres from a coupled 3-D atmospheric dynamics and transmission spectrum model that includes Doppler shifts which arise from winds and planetary motion. We model jovian planets covering
Heng, Kevin, Kempton, Eliza M. -R., Perna, Rosalba   +2 more
core   +1 more source

The Influence of a Stellar Flare on the Dynamical State of the Atmosphere of the Exoplanet HD 209458b [PDF]

Astronomy Reports, 2018
7 pages, 5 figures, accepted by Astronomy Reports (2018, v. 62, No. 10)
Luca Fossati, V. I. Shematovich, Dmitry Bisikalo, Christian Möstl, A. A. Cherenkov   +4 more
openaire   +3 more sources

Gliese 581g as a scaled-up version of Earth: atmospheric circulation simulations

, 2011
We use three-dimensional simulations to study the atmospheric circulation on the first Earth-sized exoplanet discovered in the habitable zone of an M star.
Anderson, Charbonneau, Cho, Cho, Cooper, Cooper, Cowan, Dvorak, Edwards, Edwards, Fraser, Gold, Gordon, Held, Heng, Joshi, Joshi, Kevin Heng, Kraucunas, Lammer, Mayor, Menou, Merlis, Mitchell, Peixóto, Pierrehumbert, Roeckner, Saravanan, Scalo, Selsis, Shapiro, Shell, Showman, Showman, Smagorinsky, Smagorinsky, Snellen, Stauffer, Stephenson, Steven S. Vogt, Suarez, Tarter, Thrastarson, Vallis, Vogt, Washington, Watkins, Wordsworth, Wordsworth   +48 more
core   +1 more source