Results 31 to 40 of about 5,562 (188)

Outward Migration of a Gas Accreting Planet: A Semianalytical Formula

The Astrophysical Journal
Type II orbital migration is a key process to regulate the mass and semimajor axis distribution of exoplanetary giant planets. The conventional formula of Type II migration generally predicts too rapid inward migration to reconcile with the observed ...
Shigeru Ida, Ya-Ping Li, Jun-Peng Pan, Yi-Xian Chen, Douglas N. C. Lin   +4 more
doaj   +1 more source

Mapping out the time-evolution of exoplanet processes [PDF]

, 2019
There are many competing theories and models describing the formation, migration and evolution of exoplanet systems. As both the precision with which we can characterize exoplanets and their host stars, and the number of systems for which we can make ...
Beichman, Charles, Christiansen, Jessie L., Ciardi, David R., Huber, Daniel, Marley, Mark S.   +4 more
core   +1 more source

The Rossiter-McLaughlin effect in Exoplanet Research

, 2017
The Rossiter-McLaughlin effect occurs during a planet's transit. It provides the main means of measuring the sky-projected spin-orbit angle between a planet's orbital plane, and its host star's equatorial plane.
A Collier Cameron, A Collier Cameron, A Collier Cameron, A Giménez, A Giménez, A Hale, A Shporer, A Triaud, A. Brucalassi, A. H. M. J. Triaud, A. H. M. J. Triaud, A. Reiners, A. Santerne, A. Wyttenbach, AHMJ Triaud, AHMJ Triaud, AHMJ Triaud, AHMJ Triaud, AHMJ Triaud, AHMJ Triaud, AJ Barker, BC Addison, BS Gaudi, BS Gaudi, C Baruteau, C Brinch, C Hellier, C Huang, C Moutou, C Petrovich, C Petrovich, C Terquem, C Terquem, CA Watson, D Cébron, D Fabrycky, D Gandolfi, D Huber, D Lai, D Lai, D Malmberg, D Queloz, D Queloz, DB McLaughlin, DC Fabrycky, DJA Brown, DJA Brown, DJA Brown, DJA Brown, DNC Lin, DR Anderson, DR Anderson, DV Martin, E Gloria Di, EB Ford, EB Ford, EE Mamajek, EI Chiang, ELN Jensen, F Bouchy, F Dai, F Pont, F Rodler, F Schlesinger, F Yan, FA Rasio, G Boué, G Hébrard, G Hébrard, G Zhou, G Zhou, G Zhou, G. Hébrard, G. Hébrard, GM Kennedy, Gy. M. Szabó, H Rauer, H. M. Cegla, HM Cegla, IAG Snellen, IAG Snellen, IAG Snellen, IJM Crossfield, J Guillochon, J Sahlmann, J Sahlmann, J Schneider, J Southworth, J Wit de, JA Johnson, Jason W. Barnes, JB Bouquin Le, JC Becker, JF Donati, JF Donati, JN Winn, JN Winn, JN Winn, JN Winn, JN Winn, JN Winn, JP Zahn, JS Greaves, JW Barnes, K Batygin, K Masuda, KC Schlaufman, KI Öberg, Konstantin Batygin, KR Anderson, L Gizon, L Mancini, L. Y. Temple, LD Deming, LR Doyle, M Brogi, M Brogi, M Gillon, M Gillon, M Lendl, M López-Morales, M Mayor, M Nagasawa, M Neveu-VanMalle, M Oshagh, M Oshagh, M Perryman, M. Esposito, M. Esposito, MC Johnson, MC Johnson, MT Richards, MT Richards, N Madhusudhan, N Madhusudhan, N Narita, N Nikolov, O Benomar, P Bodenheimer, P Goldreich, P Molaro, PA Nutzman, PL Wood, PW Sullivan, Q Zhuang, R Alonso, R Cloutier, R Sanchis-Ojeda, R Sanchis-Ojeda, R Sanchis-Ojeda, RA Rossiter, RA Wittenmyer, RI Dawson, RM Petrie, RR Rafikov, S Albrecht, S Albrecht, S Albrecht, S Albrecht, S Albrecht, S Chatterjee, S Doolin, S Naoz, S Naoz, S Seager, Simon Albrecht, Subo Dong, T Hirano, T Hirano, T Louden, T Mazeh, T Močnik, TL Campante, TM Rogers, TR Marsh, V Bourrier, V Bourrier, V Eylen Van, VB Kostov, WJ Chaplin, WJ Chaplin, WR Ward, Y Hosokawa, Y Ohta, Y Wu, Y Wu, Z Kopal, Z Kopal, Zdeněk Kopal   +188 more
core   +1 more source

Effects of Hydrogen on Fe‐S Alloys and Their Implications for the Martian Core

Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract Meteorites suggest the Martian core comprises iron (Fe) or iron‐nickel (Fe‐Ni) alloy with sulfur (S) identified as the primary light element. The InSight data revealed a larger, less dense Martian core than previously estimated, indicating additional light elements.
Xuehui Wei, Stella Chariton, Vitali B. Prakapenka, Yingwei Fei, Sang‐Heon Shim   +4 more
wiley   +1 more source

Exploring Warm Jupiter Migration Pathways with Eccentricities. I. Catalog of Uniform Keplerian Fits to Radial Velocities of 200 Warm Jupiters

The Astrophysical Journal Supplement Series
Giant planets are expected to predominantly form beyond the water-ice line and occasionally undergo inward migration. Unlike hot Jupiters, which can result from high-eccentricity tidal migration, warm Jupiters between 0.1 and 1 au (≈10–365 days) are in ...
Marvin Morgan, Brendan P. Bowler, Quang H. Tran, Robert A. Wittenmyer, Duncan J. Wright, George Zhou, Tyler R. Fairnington   +6 more
doaj   +1 more source

A Population of Very-Hot Super-Earths in Multiple-Planet Systems Should be Uncovered by Kepler

, 2010
We simulate a Kepler-like observation of a theoretical exoplanet population and we show that the observed orbital period distribution of the Kepler giant planet candidates is best matched by an average stellar specific dissipation function Q_* in the ...
Batalha, Batalha, Borucki, Bryson, Caldwell, Dobbs-Dixon, Ford, Fortney, Gu, Haas, Ibgui, Ida, Ida, Ida, Jackson, Jackson, Jackson, Jenkins, Jenkins, Koch, Levrard, Mardling, Masset, Miller, Ogihara, Ogilvie, Ogilvie, Reid, Rocha-Pinto, Rocha-Pinto, Sandquist, Schlaufman, Schlaufman, Seager, Winn   +34 more
core   +1 more source

Magnetic Evolution of Super‐Earth Exoplanets With a Basal Magma Ocean

Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract Habitability of super‐Earths likely requires self‐sustained magnetic fields to shield their atmospheres from stellar forcing. Extreme pressures and temperatures probably produce a long‐lived basal magma ocean (BMO), a potential source for these fields.
Victor Lherm, Miki Nakajima, Eric G. Blackman   +2 more
wiley   +1 more source

Tidal Migration of Exoplanets around M Dwarfs: Frequency-dependent Tidal Dissipation

The Astrophysical Journal
Abstract The orbital architectures of short-period exoplanet systems are shaped by tidal dissipation in their host stars. For low-mass M dwarfs whose dynamical tidal response comprises a dense spectrum of inertial modes at low frequencies, resolving the frequency dependence of tidal dissipation is crucial to capturing the effect of tides
Samantha C. Wu, Janosz W. Dewberry, Jim Fuller   +2 more
openaire   +4 more sources

Formation of Asteroid (16) Psyche by a Giant Impact

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract Asteroid (16) Psyche is the largest likely metal‐rich asteroid in the Solar System and the target of the NASA Psyche mission. The mission aims to determine whether the asteroid is the core of a differentiated planetesimal that lost its mantle via a giant impact.
Saverio Cambioni, Benjamin P. Weiss, Namya Baijal, Robert Melikyan, Erik Asphaug, John B. Biersteker, Richard P. Binzel, William F. Bottke, Samuel W. Courville, Linda T. Elkins‐Tanton, David J. Lawrence, José M. G. Merayo, Carol A. Raymond, Mark A. Wieczorek, Maria T. Zuber   +14 more
wiley   +1 more source

Orbital Migration Through Atmospheric Mass Loss

The Astronomical Journal
Atmospheric mass loss is thought to have strongly shaped the sample of close-in exoplanets. These atmospheres should be lost isotropically, leading to no net migration on the planetary orbit.
Benjamin Hanf, William Kincaid, Hilke Schlichting, Livan Cappiello, Daniel Tamayo   +4 more
doaj   +1 more source