Results 31 to 40 of about 8,792 (213)

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 ...
Nielsen, Eric L., De Rosa, Robert J., Wang, Jason J., Sahlmann, Johannes, Kalas, Paul, Duchêne, Gaspard, Rameau, Julien, Marley, Mark S., Saumon, Didier, Macintosh, Bruce, Millar-Blanchaer, Maxwell A., Nguyen, Meiji M., Ammons, S. Mark, Bailey, Vanessa P., Barman, Travis, Bulger, Joanna, Chilcote, Jeffrey, Cotten, Tara, Doyon, Rene, Esposito, Thomas M., Fitzgerald, Michael P., Follette, Katherine B., Gerard, Benjamin L., Goodsell, Stephen J., Graham, James R., Greenbaum, Alexandra Z., Hibon, Pascale, Hung, Li-Wei, Ingraham, Patrick, Konopacky, Quinn, Larkin, James E., Maire, Jérôme, Marchis, Franck, Marois, Christian, Metchev, Stanimir, Oppenheimer, Rebecca, Palmer, David, Patience, Jennifer, Perrin, Marshall, Poyneer, Lisa, Pueyo, Laurent, Rajan, Abhijith, Rantakyrö, Fredrik T., Ruffio, Jean-Baptiste, Savransky, Dmitry, Schneider, Adam C., Sivaramakrishnan, Anand, Song, Inseok, Soummer, Remi, Thomas, Sandrine, Wallace, J. Kent, Ward-Duong, Kimberly, Wiktorowicz, Sloane, Wolff, Schuyler   +53 more
openaire   +6 more sources

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

The Habitable Zone and Extreme Planetary Orbits [PDF]

, 2012
The Habitable Zone for a given star describes the range of circumstellar distances from the star within which a planet could have liquid water on its surface, which depends upon the stellar properties.
Dawn M. Gelino, Dole S.H., Stephen R. Kane   +2 more
core   +2 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

LONG-PERIOD EXOPLANETS FROM DYNAMICAL RELAXATION [PDF]

The Astrophysical Journal, 2009
Recent imaging campaigns indicate the likely existence of massive planets (~ 1-10 MJ) on ~1000 year orbits about a few percent of stars. Such objects are not easily explained in most current planet formation models. In this Letter we use ensembles of 100 N-body simulations to evaluate the potential for planet scattering during relaxation of dynamically
Scharf, Caleb, Menou, Kristen
openaire   +2 more sources

Giant Outer Transiting Exoplanet Mass (GOT ’EM) Survey. III. Recovery and Confirmation of a Temperate, Mildly Eccentric, Single-transit Jupiter Orbiting TOI-2010

The Astronomical Journal, 2023
Large-scale exoplanet surveys like the Transiting Exoplanet Survey Satellite (TESS) mission are powerful tools for discovering large numbers of exoplanet candidates.
Christopher R. Mann, Paul A. Dalba, David Lafrenière, Benjamin J. Fulton, Guillaume Hébrard, Isabelle Boisse, Shweta Dalal, Magali Deleuil, Xavier Delfosse, Olivier Demangeon, Thierry Forveille, Neda Heidari, Flavien Kiefer, Eder Martioli, Claire Moutou, Michael Endl, William D. Cochran, Phillip MacQueen, Franck Marchis, Diana Dragomir, Arvind F. Gupta, Dax L. Feliz, Belinda A. Nicholson, Carl Ziegler, Steven Villanueva Jr., Jason Rowe, Geert Jan Talens, Daniel Thorngren, Daryll LaCourse, Tom Jacobs, Andrew W. Howard, Allyson Bieryla, David W. Latham, Markus Rabus, Tara Fetherolf, Coel Hellier, Steve B. Howell, Peter Plavchan, Michael Reefe, Deven Combs, Michael Bowen, Justin Wittrock, George R. Ricker, S. Seager, Joshua N. Winn, Jon M. Jenkins, Thomas Barclay, David Watanabe, Karen A. Collins, Jason D. Eastman, Eric B. Ting   +50 more
doaj   +1 more source

Keplerian Orbits and Dynamics of Exoplanets

, 2010
8 pages, 9 figures, Chapter in "Exoplanets"; ISBN 978-0-8165-2945 ...
Murray, Carl D., Correia, Alexandre C. M.   +1 more
openaire   +2 more sources

Dynamics of Colombo’s Top: Generating Exoplanet Obliquities from Planet–Disk Interactions [PDF]

The Astrophysical Journal, 2020
Abstract Large planetary spin–orbit misalignments (obliquities) may strongly influence atmospheric circulation and tidal heating in a planet. A promising avenue to generate obliquities is via spin–orbit resonances, where the spin and orbital precession frequencies of a planet cross each other as the system evolves in time.
Yubo Su, Dong Lai
openaire   +2 more sources

The Effects of Irradiation on Hot Jovian Atmospheres: Heat Redistribution and Energy Dissipation

, 2012
Hot Jupiters, due to the proximity to their parent stars, are subjected to a strong irradiating flux which governs their radiative and dynamical properties.
Batygin, Bodenheimer, Burkert, Burrows, Burrows, Burrows, Burrows, Burrows, Cowan, Cowan, Crossfield, Demory, Dobbs-Dixon, Fortney, Fortney, Fortney, Frédéric Pont, Goody, Guillot, Harrington, Heng, Hubeny, Ibgui, Jackson, Kevin Heng, Knutson, Knutson, Knutson, Kundu, Lewis, Li, Liu, Menou, Menou, Miller, Perna, Perna, Pierrehumbert, Rauscher, Rosalba Perna, Showman, Todorov, Winn, Youdin, Zel'dovich   +44 more
core   +1 more source

Exclusion of Stellar Companions to Exoplanet Host Stars [PDF]

, 2017
Given the frequency of stellar multiplicity in the solar neighborhood, it is important to study the impacts this can have on exoplanet properties and orbital dynamics.
Ciardi, David R., Everett, Mark E., Horch, Elliott P., Howell, Steve B., Kane, Stephen R., Wittrock, Justin M.   +5 more
core   +3 more sources