Results 31 to 40 of about 16,942 (225)

Theoretical models of planetary system formation. II. Post-formation evolution [PDF]

, 2015
We extend the results of planetary formation synthesis by computing the long-term evolution of synthetic systems from the clearing of the gas disk into the dynamical evolution phase.
Alibert, Y., Benz, W., Pfyffer, S., Swoboda, D.   +3 more
core   +3 more sources

Two Suns in The Sky: Stellar Multiplicity in Exoplanet Systems [PDF]

, 2006
We present results of a reconnaissance for stellar companions to all 131 radial-velocity-detected candidate extrasolar planetary systems known as of July 1, 2005.
Beaulieu, Thom D., Hambly, Nigel C., Henry, Todd J., Jao, Wei-Chun, Mason, Brian D., Raghavan, Deepak, Subasavage, John P.   +6 more
core   +2 more sources

Exoplanet albedo spectra and colors as a function of planet phase, separation, and metallicity [PDF]

, 2010
First generation optical coronagraphic telescopes will obtain images of cool gas and ice giant exoplanets around nearby stars. The albedo spectra of exoplanets at planet-star separations larger than about 1 AU are dominated by reflected light to beyond 1
Ackerman, Alibert, Beichman, Boss, Brown, Burrows, Burrows, Burrows, Chapman, Chapman, Conrath, Dlugach, Dodson-Robinson, Dyudina, Fortney, Fortney, Fortney, Fortney, Fortney, Fortney, Freedman, Gautier, Gautier, Guillot, Guillot, Guyon, Ida, Jonathan J. Fortney, Kasdin, Kerri L. Cahoy, Kratter, Kuchner, Lafreniere, Liou, Lodders, Lodders, Lodders, Mark S. Marley, Marley, Marley, Marley, Marley, Marois, Mawet, Mihilas, Rauscher, Saumon, Saumon, Seager, Sobolev, Spiegel, Stephens, Sudarsky, Sudarsky, Sudarsky, Traub, Veras, West, Zahnle   +58 more
core   +2 more sources

The Giant Accreting Protoplanet Survey (GAPlanetS)—Results from a 6 yr Campaign to Image Accreting Protoplanets

The Astronomical Journal, 2023
Accreting protoplanets are windows into planet formation processes, and high-contrast differential imaging is an effective way to identify them. We report results from the Giant Accreting Protoplanet Survey (GAPlanetS), which collected H α differential ...
Katherine B. Follette, Laird M. Close, Jared R. Males, Kimberly Ward-Duong, William O. Balmer, Jéa Adams Redai, Julio Morales, Catherine Sarosi, Beck Dacus, Robert J. De Rosa, Fernando Garcia Toro, Clare Leonard, Bruce Macintosh, Katie M. Morzinski, Wyatt Mullen, Joseph Palmo, Raymond Nzaba Saitoti, Elijah Spiro, Helena Treiber, Kevin Wagner, Jason Wang, David Wang, Alex Watson, Alycia J. Weinberger   +23 more
doaj   +1 more source

From Methane to Nanodiamond Precursors in Water: Superacid‐like Condensation Pathways Under Extreme Conditions

Angewandte Chemie, Volume 138, Issue 3, 16 January 2026.
Under extreme pressure and temperature, superionic water acts as a strong superacid, catalyzing methane polycondensation through pentacoordinated carbonium ions (CH5+). This discovery reveals the non‐classical carbocation chemistry underlying the early stages of diamond formation in water under extreme conditions.
Thomas Thévenet, Axel Dian, Matteo Cioni, Alexis Markovits, Sandro Scandolo, Arthur France‐Lanord, Flavio Siro Brigiano   +6 more
wiley   +2 more sources

Observational Constraints on the Formation and Evolution of Neptune-Class Exoplanets [PDF]

Space Science Reviews, 2020
21 pages, 6 ...
Deleuil, Magali, Pollacco, Don, Baruteau, Clément, Rauer, Heike, Blanc, Michel   +4 more
openaire   +4 more sources

Planet Populations as a Function of Stellar Properties

, 2018
Exoplanets around different types of stars provide a window into the diverse environments in which planets form. This chapter describes the observed relations between exoplanet populations and stellar properties and how they connect to planet formation ...
A Cumming, A Izidoro, A Mortier, A Mortier, A Silburt, A Wolfgang, A. Mortier, AC Boley, AN Youdin, AP Boss, AP Boss, AW Howard, AW Mann, B Courcol, B Rojas-Ayala, Benjamin T. Montet, BMS Hansen, BMS Hansen, C Beaugé, C Cossou, C Dressing, C Dressing, C Laws, C Mordasini, C Mordasini, C Obermeier, C Terquem, Christian Clanton, CJ Burke, Courtney D. Dressing, D Charbonneau, D Foreman-Mackey, D Huber, D Huber, DA Fischer, Daniel C. Fabrycky, DNC Lin, Dun Wang, E Chiang, E Gaidos, E Gaidos, E Gaidos, E Jehin, E Jofré, E Kokubo, E Kokubo, E Kokubo, EA Petigura, EA Petigura, EJ Lee, EW Thommes, F Fressin, F Meru, FJ Ciesla, G Gonzalez, G Gonzalez, G Gonzalez, G Kennedy, G Laughlin, G Laughlin, GAL Coleman, GD Mulders, GD Mulders, GD Mulders, GD Mulders, GW Marcy, GW Wetherill, H Rein, HE Schlichting, I Pascucci, IJM Crossfield, IN Reid, J Maldonado, J Wang, JA Johnson, JA Johnson, JA Johnson, JB Pollack, JE Chambers, JJ Lissauer, JL Christiansen, JN Winn, Jonathan J. Swift, JP Williams, K Fuhrmann, K Kornet, K Sadakane, K.-M. Dittkrist, KC Schlaufman, KC Schlaufman, KC Schlaufman, Konstantin Batygin, L Ghezzi, L Pasquini, LA Buchhave, LA Buchhave, LA Buchhave, M Endl, M Endl, M Gillon, M Ikoma, M Mayor, M Mayor, M. Ansdell, ME Everett, MI Jones, N. C. Santos, NC Santos, NC Santos, NC Santos, NC Santos, P Goldreich, P Pinilla, PW Sullivan, RC Terrien, RI Dawson, RL Gilliland, Robert A. Wittenmyer, RP Butler, S Dong, S Hekker, S Ida, S Ida, S Ida, S Mathur, S Mohanty, S Udry, S Udry, S. G. Sousa, Sabine Reffert, Scott A. Barenfeld, Sean M. Andrews, SG Sousa, SN Raymond, SN Raymond, TD Morton, TM Brown, V. Zh. Adibekyan, Vardan Adibekyan, W Zhu, WR Ward, X Bonfils, Y Hasegawa, Y Hasegawa, Y Takeda, Y. Alibert, Y. Alibert, ZK Berta   +147 more
core   +1 more source

Scaling K2. VI. Reduced Small-planet Occurrence in High-galactic-amplitude Stars

The Astronomical Journal, 2023
In this study, we performed a homogeneous analysis of the planets around FGK dwarf stars observed by the Kepler and K2 missions, providing spectroscopic parameters for 310 K2 targets —including 239 Scaling K2 hosts—observed with Keck/HIRES.
Jon K. Zink, Kevin K. Hardegree-Ullman, Jessie L. Christiansen, Erik A. Petigura, Kiersten M. Boley, Sakhee Bhure, Malena Rice, Samuel W. Yee, Howard Isaacson, Rachel B. Fernandes, Andrew W. Howard, Sarah Blunt, Jack Lubin, Ashley Chontos, Daria Pidhorodetska, Mason G. MacDougall   +15 more
doaj   +1 more source

Theoretical Spectra of Terrestrial Exoplanet Surfaces [PDF]

, 2012
We investigate spectra of airless rocky exoplanets with a theoretical framework that self-consistently treats reflection and thermal emission. We find that a silicate surface on an exoplanet is spectroscopically detectable via prominent Si-O features in ...
Batalha, Best, Bethany L. Ehlmann, Borucki, Borucki, Cheek, Clark, Clark, Cochran, Cowan, de Pater, Drilling, Farmer, Gautier, Koch, Miller-Ricci, Muirhead, Pieters, Pieters, RELAB Spectral Database, Renyu Hu, Rogers, Salisbury, Sara Seager, Seager, Seager, Sobolev, Sprague, Winn   +28 more
core   +2 more sources

Radial velocity eclipse mapping of exoplanets [PDF]

, 2015
Planetary rotation rates and obliquities provide information regarding the history of planet formation, but have not yet been measured for evolved extrasolar planets.
Barnes J. W., Correia A. C. M., Cowan N. B., Cox A. N., de Pater I., Faure G., Felix Sainsbury-Martinez, Fujii Y., Guillot T., Heller R., Hirano T., Hui L., Kataria T., Kawahara H., Kawahara H., Mandel K., Markwardt C. B., Murray C. D, Nikolay Nikolov, Ohta Y., Pallé E., Paz-Chinchón F., Seager S., Winn J. N.   +23 more
core   +2 more sources