Results 51 to 60 of about 15,442 (228)

Thermoelastic Contraction as a Suppressor of Atmospheric Escape in Close-in Exoplanets

The Astrophysical Journal
The survival of volatile-rich atmospheres on close-in exoplanets challenges classical escape models. We identify a fully classical, interior-driven correction: thermoelastic contraction of the planetary mantle slightly increases the gravitational binding
L. Yıldız, D. Kaykı, E. Güdekli
doaj   +1 more source

Soot Planets Instead of Water Worlds

The Astrophysical Journal Letters
Some low-density exoplanets are thought to be water-rich worlds that formed beyond the snow line of their protoplanetary disk, possibly accreting coequal portions of rock and water.
Jie Li, Edwin A. Bergin, Marc M. Hirschmann, Geoffrey A. Blake, Fred J. Ciesla, Eliza M.-R. Kempton   +5 more
doaj   +1 more source

Ohmic Dissipation During the Formation of Super-Earth

The Astrophysical Journal, 2023
The super-Earth population, as one of the representatives of exoplanets, plays an important role in constraining the planet formation theories. According to the prediction from core-accretion models, super-Earths should be rare because their masses are ...
Shi Jia, Wei, Zhong, Cong Yu
doaj   +1 more source

The K2 Mission: Characterization and Early results

, 2014
The K2 mission will make use of the Kepler spacecraft and its assets to expand upon Kepler's groundbreaking discoveries in the fields of exoplanets and astrophysics through new and exciting observations.
Aigrain, Suzanne, Barclay, Thomas, Bryson, Stephen T., Caldwell, Doug, Chaplin, William J., Cochran, William D., Fortney, Jonathan J., Haas, Michael, Howell, Steve B., Huber, Daniel, Marcy, Geoffrey W., Miglio, Andrea, Mullally, Fergal, Najita, Joan R., Smith, Marcie, Sobeck, Charlie, Still, Martin, Troeltzsch, John, Twicken, J. D.   +18 more
core   +1 more source

The Not-so Dramatic Effect of Advective Flows on Gas Accretion

The Astrophysical Journal
Super-Earths and mini-Neptunes are the most common types of exoplanets discovered, yet the physics of their formation are still debated. Standard core accretion models in gas-rich environments find that typical mini-Neptune mass planets would blow up ...
Vincent Savignac, Eve J. Lee
doaj   +1 more source

A Stellar Mass Dependence of Structured Disks: A Possible Link with Exoplanet Demographics [PDF]

, 2021
Nienke van der Marel, Gijs D. Mulders
openalex   +1 more source

Magnetic Scaling Laws for the Atmospheres of Hot Giant Exoplanets

, 2011
We present scaling laws for advection, radiation, magnetic drag and ohmic dissipation in the atmospheres of hot giant exoplanets. In the limit of weak thermal ionization, ohmic dissipation increases with the planetary equilibrium temperature (T_eq ...
Agol, Baraffe, Batygin, Batygin, Burrows, Burrows, Charbonneau, Cowan, Crossfield, Dobbs-Dixon, Fortney, Goody, Hansen, Knutson, Knutson, Kristen Menou, Laughlin, Lewis, Liu, Miller, Miller, Perna, Perna, Rauscher, Rauscher, Showman, Showman, Showman, Showman, Winn   +29 more
core   +1 more source

Radial Velocities as an Exoplanet Discovery Method

, 2017
The precise radial velocity technique is a cornerstone of exoplanetary astronomy. Astronomers measure Doppler shifts in the star's spectral features, which track the line-of/sight gravitational accelerations of a star caused by the planets orbiting it ...
B Campbell, C Chubak, D Queloz, D Queloz, DA Fischer, DW Latham, FA Pepe, GW Marcy, H Kjeldsen, I Boisse, JF Kasting, JL Bean, JT Wright, M Mayor, RP Butler, RP Butler, WJ Borucki, X Dumusque   +17 more
core   +1 more source

State‐Dependence of Polar Amplification in an Idealized GCM

Geophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract Polar amplification (PA) is a robust feature of contemporary climate change, but its state‐dependence across different climate conditions is poorly understood despite potential relevance to paleoclimate records and future projections. Here we examine the state‐dependence of PA across a wide range of climate states in an idealized moist general
Andrew I. L. Williams, Timothy M. Merlis
wiley   +1 more source

The Habitable Zone Gallery [PDF]

, 2012
The Habitable Zone Gallery (www.hzgallery.org) is a new service to the exoplanet community which provides Habitable Zone (HZ) information for each of the exoplanetary systems with known planetary orbital parameters.
Dawn M. Gelino, Smalley B., Stephen R. Kane   +2 more
core   +3 more sources