Results 11 to 20 of about 121,687 (300)
Orbital migration and the frequency of giant planet formation [PDF]
, 2002 We present a statistical study of the post-formation migration of giant planets in a range of initial disk conditions. For given initial conditions we model the evolution of giant planet orbits under the influence of disk, stellar, and mass loss torques.
Armitage +81 more
core +2 more sources
On the Terminal Rotation Rates of Giant Planets [PDF]
, 2018 Within the general framework of core-nucleated accretion theory of giant planet formation, the conglomeration of massive gaseous envelopes is facilitated by a transient period of rapid accumulation of nebular material.
Batygin, Konstantin
core +3 more sources
Breaking Degeneracies in Formation Histories by Measuring Refractory Content in Gas Giants
The Astrophysical Journal, 2023 Relating planet formation to atmospheric composition has been a long-standing goal of the planetary science community. So far, most modeling studies have focused on predicting the enrichment of heavy elements and the C/O ratio in giant planet atmospheres.
Yayaati Chachan +3 more
doaj +1 more source
The Role of Multiplicity in Disk Evolution and Planet Formation [PDF]
, 2011 The past decade has seen a revolution in our understanding of protoplanetary disk evolution and planet formation in single star systems. However, the majority of solar-type stars form in binary systems, so the impact of binary companions on ...
Hillenbrand, Lynne A. +3 more
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On the Radii of Close-in Giant Planets [PDF]
, 2000 The recent discovery that the close-in extrasolar giant planet, HD209458b, transits its star has provided a first-of-its-kind measurement of the planet's radius and mass.
A. Burrows +8 more
core +2 more sources
The Astrophysical Journal, 2023 Thanks to “dust-to-planet” simulations (DTPSs), which treat the collisional evolution directly from dust to giant-planet cores in a protoplanetary disk, we showed that giant-planet cores are formed in ≲10 au in several 10 ^5 yr, because porous pebbles ...
Hiroshi Kobayashi, Hidekazu Tanaka
doaj +1 more source
Takeout and Delivery: Erasing the Dusty Signature of Late-stage Terrestrial Planet Formation
The Astrophysical Journal, 2023 The formation of planets like Earth is expected to conclude with a series of late-stage giant impacts that generate warm dusty debris, the most anticipated visible signpost of terrestrial planet formation in progress.
Joan R. Najita, Scott J. Kenyon
doaj +1 more source
Giant Planet Lightning in Nonideal Gases
The Planetary Science Journal, 2023 Lightning has been directly observed or inferred on all giant planets, generally accepted to be occurring in their water clouds. However, much as Earth has both cloud–cloud and cloud–ground lightning, this does not mean all flashes occur in a narrow ...
Yury S. Aglyamov +6 more
doaj +1 more source
Exoplanets around Red Giants: Distribution and Habitability
Galaxies, 2023 As the search for exoplanets continues, more are being discovered orbiting Red Giant stars. We use current data from the NASA Exoplanet Archive to investigate planet distribution around Red Giant stars and their presence in the host’s habitable zone.
Ruixuan E. Chen +4 more
doaj +1 more source
No evidence of a hot Jupiter around HD 188753 A [PDF]
, 2007 The discovery of a short-period giant planet (a hot Jupiter) around the primary component of the triple star system HD 188753 has often been considered as an important observational evidence and as a serious challenge to planet-formation theories ...
A. Eggenberger +36 more
core +3 more sources