Results 61 to 70 of about 4,693,249 (249)

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

Emergent Exoplanet Flux: Review of the Spitzer Results [PDF]

, 2008
Observations using the Spitzer Space Telescope provided the first detections of photons from extrasolar planets. Spitzer observations are allowing us to infer the temperature structure, composition, and dynamics of exoplanet atmospheres.
Bouchy, Charbonneau, Demory, Drake Deming, Gillon, Morales-Calderon, Showman   +6 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

Speckle noise reduction techniques for high-dynamic range imaging [PDF]

, 2007
High-dynamic range imaging from space in the visible, aiming in particular at the detection of terrestrial exoplanets, necessitates not only the use of a coronagraph, but also of adaptive optics to correct optical defects in real time.
Belikov, Belikov, Bordé, Bordé, Bordé, Codona, Dohlen, Give'on, Guyon, Guyon, Guyon, Kasdin, Kuchner, Lyot, Malbet, Pascal Bordé, Putnam, Roddier, Rouan, Shaklan, Traub, Trauger, Trauger, Wesley Traub   +23 more
core   +3 more sources

Worlds Beyond: A Strategy for the Detection and Characterization of Exoplanets Executive Summary of a Report of the ExoPlanet Task Force Astronomy and Astrophysics Advisory Committee Washington, DC June 23, 2008 [PDF]

, 2008
[No ...
Fischer, Debra, Hammel, H. B., Henning, Thomas, Hillenbrand, Lynne, Kasting, James, Laughlin, Greg, Lunine, Jonathan I., Macintosh, Bruce, Marley, Mark, Melnick, Gary, Monet, David, Noecker, Charley, Peale, Stan, Quirrenbach, Andreas, Seager, Sara, Winn, Joshua N.   +15 more
core   +1 more source

Hot Jupiters Have Giant Companions: Evidence for Coplanar High-eccentricity Migration

The Astrophysical Journal Letters, 2023
This study considers the characteristics of planetary systems with giant planets based on a population-level analysis of the California Legacy Survey planet catalog. We identified three characteristics common to hot Jupiters (HJs).
Jon K. Zink, Andrew W. Howard
doaj   +1 more source

THE INFLUENCE OF MAGNETIC FIELD GEOMETRY ON THE FORMATION OF CLOSE-IN EXOPLANETS [PDF]

The Astrophysical Journal Letters, 2016
ABSTRACT Approximately half of Sun-like stars harbor exoplanets packed within a radius of ∼0.3 au, but the formation of these planets and why they form in only half of known systems are still not well understood. We employ a one-dimensional steady-state model to gain physical insight into the origin of these close-in exoplanets.
openaire   +2 more sources

Exoplanets - search methods, discoveries, and prospects for astrobiology [PDF]

, 2008
Whereas the Solar System has Mars and Europa as the best candidates for finding fossil/extant life as we know it - based on complex carbon compounds and liquid water - the 263 (non-pulsar) planetary systems around other stars as known at 15 September ...
Jones, Barrie W
core   +2 more sources

Orbital Migration of Protoplanets in a Marginally Gravitationally Unstable Disk. II. Migration, Merging, and Ejection

The Astrophysical Journal, 2023
Protoplanets formed in a marginally gravitationally unstable (MGU) disk by either core accretion or disk instability will be subject to dynamical interactions with massive spiral arms, possibly resulting in inward or outward orbital migration, mergers ...
Alan P. Boss
doaj   +1 more source

Pursuing the planet-debris disk connection: Analysis of upper limits from the Anglo-Australian Planet Search [PDF]

, 2015
Solid material in protoplanetary discs will suffer one of two fates after the epoch of planet formation; either being bound up into planetary bodies, or remaining in smaller planetesimals to be ground into dust.
Marshall, Jonathan P., Wittenmyer, Robert A.   +1 more
core   +2 more sources