Results 71 to 80 of about 182,451 (170)

Accelerating Giant-impact Simulations with Machine Learning

The Astrophysical Journal
Constraining planet-formation models based on the observed exoplanet population requires generating large samples of synthetic planetary systems, which can be computationally prohibitive.
Caleb Lammers, Miles Cranmer, Sam Hadden, Shirley Ho, Norman Murray, Daniel Tamayo   +5 more
doaj   +1 more source

The Persistent Thermal Anomalies in Rocky Worlds

The Astrophysical Journal
Observing the dayside thermal emissions of rocky exoplanets provides essential insights into their compositions and the presence of atmospheres. Even though no conclusive evidence has been found for atmospheres on small rocky exoplanets orbiting M dwarfs,
Zifan Lin, Tansu Daylan
doaj   +1 more source

Darwin---an experimental astronomy mission to search for extrasolar planets [PDF]

, 2009
peer reviewedAs a response to ESA call for mission concepts for its Cosmic Vision 2015--2025 plan, we propose a mission called Darwin. Its primary goal is the study of terrestrial extrasolar planets and the search for life on them.
Herbst, Tom, White, G., Santos, N., Chazelas, B., Rouan D, Ollivier, Marc, Cockell CS, Lay, Oliver P., Brack, A., Defrére, D., Eiroa, C., Eiroa C, Martin, Stefan R., Westall F, Launhardt, Ralf, Cockell, C.S., Cockell, Charles S, Coudé du Foresto V, Moutou C, Bordé P, Moutou, C., Santos, Nuno, White, Glenn, Henning, T., Absil, Olivier, Danchi, William, Fridlund, Malcolm, Selsis, F., Defrère D, Mugnier, Laurent, Johnston K, Paresce, Francesco, Eiroa, Carlos, Liseau, René, Herbst, T., Moutou, Claire, Chazelas, Bruno, Kaltenegger L, Lawson, P., Chelli, Alain, White G, Herder J, Benz, Willy, Chelli, A., Kaltenegger, L., Lammer H, Santos N, Cottin H, Mawet D, Rottgering, Huub J A, Lammer, Helmut, Serabyn, Eugene, Martin SR, Paresce F, Santos, Nuno,, Rottgering HJA, Selsis F, Labadie L, Launhardt R, Beichman C, Serabyn E, L\ue9ger, A., Danchi W, Chazelas B, Martin, S.R., Rabbia, Y., Santos, Nuno, C., Benz, W., Coudé Du Foresto, Vincent, Quirrenbach, A., Mourard, D., Rabbia, Yves, Rottgering, Huub J. A., Léger, A., Cottin, H., Benz W, Ollivier, M., Rottgering, Huub J.A., Westall, F., Lay, Oliver P, den Herder, J-W., Coud\ue9 Du Foresto, V., Rabbia Y, Bordé, Pascale, Liseau, Ren\ue9, Coudé Du Foresto, V., Brack A, Liseau, Rene', Léger, Alain, Serabyn, E., Absil, O., Paresce, Franesco, Lawson, Peter, Selsis, Franck, Rottgering, H.J.A., Mourard, Denis, Lay, O.P., Defr\ue9re, D., Westall, Frances, Beichman, C., Henning T, Mawet, D., Herbst T, Lawson P, Danchi, W., Paresce, F., Johnston, Kenneth, Coudé du Forest, Vincent, Léger A, Quirrenbach A, Martin, Stefan R, Mourard D, Chelli A, Labadie, L., Launhardt, R., Henning, Thomas, Fridlund, C.W.M., Kaltenegger, Lisa, Lay OP, Ollivier M, Absil O, Rouan, Daniel, Liseau R, Mugnier, L., Quirrenbach, Andreas, Bord\ue9, P., Johnston, K, Bordé, P., Defrere, Denis, Cockell, Charles S., Lammer, H., Mawet, Dimitri, Fridlund M, Brack, Andre, Cottin, Hervé, Labadie, Lucas, den Herder, Jan-Willem, Mugnier L, Beichman, Charles   +138 more
core   +2 more sources

JWST TRAPPIST-1 e/b Program: Motivation and First Observations

The Astronomical Journal
One of the forefront goals in the field of exoplanets is the detection of an atmosphere on a temperate terrestrial exoplanet, and among the best suited systems to do so is TRAPPIST-1.
Natalie H. Allen, Néstor Espinoza, V. A. Boehm, Caleb I. Cañas, Kevin B. Stevenson, Nikole K. Lewis, Ryan J. MacDonald, Brett M. Morris, Eric Agol, Knicole Colón, Hannah Diamond-Lowe, Ana Glidden, Amélie Gressier, Jingcheng Huang, Zifan Lin, Douglas Long, Dana R. Louie, Meredith A. MacGregor, Laurent Pueyo, Benjamin V. Rackham, Sukrit Ranjan, Sara Seager, Guadalupe Tovar Mendoza, Jeff A. Valenti, Daniel Valentine, Roeland P. van der Marel, Hannah R. Wakeford   +26 more
doaj   +1 more source

JWST COMPASS: A NIRSpec G395H Transmission Spectrum of the Super-Earth GJ 357 b

The Astronomical Journal
We present JWST NIRSpec/G395H transmission spectroscopy observations of GJ 357 b, a warm ( T _eq  ≈ 525 K) super-Earth (1.2 R _⊕ , 1.84 M _⊕ ) orbiting a nearby M3-type star, with a median precision of 18 ppm and 27 ppm in NRS1 and NRS2, respectively ...
Jea Adams Redai, Nicholas Wogan, Nicole L. Wallack, Munazza K. Alam, Artyom Aguichine, Angie Wolfgang, Hannah R. Wakeford, Johanna Teske, Nicholas Scarsdale, Sarah E. Moran, Mercedes López-Morales, Annabella Meech, Peter Gao, Anna Gagnebin, Natasha E. Batalha, Natalie M. Batalha, Lili Alderson   +16 more
doaj   +1 more source

Hot Rocks Survey. V. Secondary Eclipse Photometry of GJ 3473 b with JWST/MIRI

The Astronomical Journal
JWST is transforming our ability to characterize small exoplanets, from sub-Neptunes to rocky worlds. A key open question is whether highly irradiated rocky planets can retain atmospheres or are stripped bare by stellar irradiation—a boundary that ...
Måns Holmberg, Hannah Diamond-Lowe, João M. Mendonça, Daniel Kitzmann, Néstor Espinoza, Natalie H. Allen, Prune C. August, Mark Fortune, Amélie Gressier, Jegug Ih, Erik Meier Valdés, Merlin Zgraggen, Lars A. Buchhave, Brice-Olivier Demory, Chloe Fisher, Neale P. Gibson, Kevin Heng, Bibiana Prinoth, Adam J. Burgasser   +18 more
doaj   +1 more source

No Thick Atmosphere on the Terrestrial Exoplanet Gl 486b

The Astrophysical Journal Letters
A primary science goal for JWST is to detect and characterize the atmospheres of terrestrial planets orbiting M dwarfs (M-Earths). The existence of atmospheres on M-Earths is highly uncertain because their host stars’ extended history of high X-ray and ...
Megan Weiner Mansfield, Qiao Xue, Michael Zhang, Alexandra S. Mahajan, Jegug Ih, Daniel Koll, Jacob L. Bean, Brandon Park Coy, Jason D. Eastman, Eliza M.-R. Kempton, Edwin S. Kite   +10 more
doaj   +1 more source

Unraveling the complex inventory of biorelevant organics in the plumes of icy moons. [PDF]

Proc Natl Acad Sci U S A, 2023
Kaiser RI.
europepmc   +1 more source

86th Annual Meeting of the Meteoritical Society (2024)

Meteoritics &Planetary Science, Volume 59, Issue S1, Page A1-A468, August 2024.
wiley   +1 more source

Naming the extrasolar planets [PDF]

, 2009
Extrasolar planets are not named and are referred to only by their assigned scientific designation. The reason given by the IAU to not name the planets is that it is considered impractical as planets are expected to be common.
Lyra, Wladimir
core