Results 41 to 50 of about 181,154 (273)

deep PACO: Combining statistical models with deep learning for exoplanet detection and characterization in direct imaging at high contrast [PDF]

Monthly notices of the Royal Astronomical Society, 2023
Direct imaging is an active research topic in astronomy for the detection and the characterization of young sub-stellar objects. The very high contrast between the host star and its companions makes the observations particularly challenging.
O. Flasseur, T. Bodrito, J. Mairal, J. Ponce, M. Langlois, A. Lagrange   +5 more
semanticscholar   +1 more source

Using graphical and pictorial representations to teach introductory astronomy students about the detection of extrasolar planets via gravitational microlensing [PDF]

, 2016
The detection and study of extrasolar planets is an exciting and thriving field in modern astrophysics, and an increasingly popular topic in introductory astronomy courses.
Bransford J. D., Colin S. Wallace, Committe on Undergraduate Physics Education Research and Implementation, Edward E. Prather, Einstein A., Gina Brissenden, Hartle J. B., Linder C., McDermott L. C., Prather E. E., Singer S. R., Timothy G. Chambers   +11 more
core   +3 more sources

Degenerate Interpretations of O3 Spectral Features in Exoplanet Atmosphere Observations Due to Stellar UV Uncertainties: A 3D Case Study with TRAPPIST-1 e [PDF]

Astrophysical Journal, 2023
TRAPPIST-1 e is a potentially habitable terrestrial exoplanet orbiting an ultracool M dwarf star and is a key target for observations with the James Webb Space Telescope.
G. Cooke, Dan Marsh, Catherine Walsh, A. Youngblood, S. O. Physics, Astronomy, U. Leeds, Uk, I. O. Astronomy, U. Cambridge, Nasa Goddard Space Flight Center, Solar System Exploration Division, Usa   +12 more
semanticscholar   +1 more source

TOI-2525 b and c: A Pair of Massive Warm Giant Planets with Strong Transit Timing Variations Revealed by TESS

The Astronomical Journal, 2023
The K-type star TOI-2525 has an estimated mass of M = ${0.849}_{-0.033}^{+0.024}$ M _⊙ and radius of R = ${0.785}_{-0.007}^{+0.007}$ R _⊙ observed by the TESS mission in 22 sectors (within sectors 1 and 39).
Trifon Trifonov, Rafael Brahm, Andrés Jordán, Christian Hartogh, Thomas Henning, Melissa J. Hobson, Martin Schlecker, Saburo Howard, Finja Reichardt, Nestor Espinoza, Man Hoi Lee, David Nesvorny, Felipe I. Rojas, Khalid Barkaoui, Diana Kossakowski, Gavin Boyle, Stefan Dreizler, Martin Kürster, René Heller, Tristan Guillot, Amaury H. M. J. Triaud, Lyu Abe, Abdelkrim Agabi, Philippe Bendjoya, Nicolas Crouzet, Georgina Dransfield, Thomas Gasparetto, Maximilian N. Günther, Wenceslas Marie-Sainte, Djamel Mékarnia, Olga Suarez, Johanna Teske, R. Paul Butler, Jeffrey D. Crane, Stephen Shectman, George R. Ricker, Avi Shporer, Roland Vanderspek, Jon M. Jenkins, Bill Wohler, Karen A. Collins, Kevin I. Collins, David R. Ciardi, Thomas Barclay, Ismael Mireles, Sara Seager, Joshua N. Winn   +46 more
doaj   +1 more source

Validating AU Microscopii d with Transit Timing Variations

The Astronomical Journal, 2023
AU Mic is a young (22 Myr), nearby exoplanetary system that exhibits excess transit timing variations (TTVs) that cannot be accounted for by the two known transiting planets nor stellar activity.
Justin M. Wittrock, Peter P. Plavchan, Bryson L. Cale, Thomas Barclay, Mathis R. Ludwig, Richard P. Schwarz, Djamel Mékarnia, Amaury H. M. J. Triaud, Lyu Abe, Olga Suarez, Tristan Guillot, Dennis M. Conti, Karen A. Collins, Ian A. Waite, John F. Kielkopf, Kevin I. Collins, Stefan Dreizler, Mohammed El Mufti, Dax L. Feliz, Eric Gaidos, Claire S. Geneser, Keith D. Horne, Stephen R. Kane, Patrick J. Lowrance, Eder Martioli, Don J. Radford, Michael A. Reefe, Veronica Roccatagliata, Avi Shporer, Keivan G. Stassun, Christopher Stockdale, Thiam-Guan Tan, Angelle M. Tanner, Laura D. Vega   +33 more
doaj   +1 more source

A Recommendation to Retire VESPA for Exoplanet Validation

Research Notes of the AAS, 2023
VESPA, the first open-source python package built to probabilistically validate exoplanet transit signals, has contributed to the validation of over a thousand exoplanets.
T. Morton, S. Giacalone, S. Bryson
semanticscholar   +1 more source

Diurnal variations in the stratosphere of the ultrahot giant exoplanet WASP-121b [PDF]

Nature Astronomy, 2022
The temperature profile of a planetary atmosphere is a key diagnostic of radiative and dynamical processes governing the absorption, redistribution and emission of energy.
T. Mikal-Evans, D. Sing, J. Barstow, T. Kataria, J. Goyal, N. Lewis, Jake Taylor, N. Mayne, T. Daylan, H. Wakeford, M. Marley, J. Spake   +11 more
semanticscholar   +1 more source

First results of the Kourovka Planet Search: discovery of transiting exoplanet candidates in the first three target fields [PDF]

, 2016
We present the first results of our search for transiting exoplanet candidates as part of the Kourovka Planet Search (KPS) project. The primary objective of the project is to search for new hot Jupiters which transit their host stars, mainly in the ...
Balega, Yuri Yu., Baştürk, Özgür, Benni, Paul, Bretton, Marc, Burdanov, Artem Y., Dyachenko, Vladimir V., Ivanov, Kirill I., Krushinsky, Vadim V., Lyashenko, Artem Yu., Marchini, Alessandro, Moiseev, Alexei V., Naves, Ramon, Popov, Alexander A., Puchalski, Damian, Rastegaev, Denis A., Rusov, Sergei A., Shadick, Stan, Sokov, Evgenii N., Sokova, Iraida A., Özavcı, Ibrahim   +19 more
core   +1 more source

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

Exoplanet Statistics and Theoretical Implications [PDF]

Annual Review of Astronomy and Astrophysics, 2021
In the past few years, significant advances have been made in understanding the distributions of exoplanet populations and the architecture of planetary systems.
Wei Zhu, S. Dong
semanticscholar   +1 more source