WASP-107b’s Density Is Even Lower: A Case Study for the Physics of Planetary Gas Envelope Accretion and Orbital Migration [PDF]
Astronomical Journal, 2020 With a mass in the Neptune regime and a radius of Jupiter, WASP-107b presents a challenge to planet formation theories. Meanwhile, the planet’s low surface gravity and the star’s brightness also make it one of the most favorable targets for atmospheric ...
C. Piaulet +23 more
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Quantifying the Impact of the Dust Torque on the Migration of Low-mass Planets
The Astrophysical Journal, 2023 Disk solids are critical in many planet formation processes; however, their effect on planet migration remains largely unexplored. Here we assess this important issue for the first time by building on the systematic measurements of dust torques on an ...
Octavio M. Guilera +3 more
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A Role of Proto-Accretion Disk Heating Proto-Planets to Evaporation [PDF]
Journal of Astronomy and Space Sciences, 2002 We study a role of the proto-accretion disk during the formation of the planetary system, which is motivated with recent X-ray observations. There is an observational correlation of the mass of extrasolar planets with their orbital period, which also ...
Heon-Young Chang, Chul-Sung Choi
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Influence of migration models and thermal torque on planetary growth in the pebble accretion scenario [PDF]
Astronomy & Astrophysics, 2020 Low-mass planets that are in the process of growing larger within protoplanetary disks exchange torques with the disk and change their semi-major axis accordingly.
T. Baumann, B. Bitsch
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Toward predictive scenarios of planetary migration
, 2008 La détection récente des exoplanètes a fourni un formidable laboratoire d'expérimentation des théories de formation et d'évolution planétaire. Un résultat troublant est la proportion de planètes géantes situées plus près de leur étoile que ne l'est Mercure de notre Soleil! Si, comme il est admis, ces planètes se sont formées à plus grande distance de l'
Clément Baruteau
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Antropologia Portuguesa, 2023 This article focuses on the critical importance of knowledge, a key trait of human culture, in multi-species environmental coadaptation and niche co-construction in human evolutionary history.
Shaozeng Zhang, Zhuo Chen
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On Wave Interference in Planet Migration: Dead Zone Torques Modified by Active Zone Forcing
The Astrophysical Journal, 2023 We investigate planetary migration in the dead zone of a protoplanetary disk where there is a set of spiral waves propagating inward due to the turbulence in the active zone and the Rossby wave instability, which occurs at the transition between the dead
Raúl O. Chametla +3 more
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Improved torque formula for low and intermediate mass planetary migration [PDF]
, 2017 The migration of planets on nearly circular, non-inclined orbits in protoplanetary discs is entirely described by the disc's torque. This torque is a complex function of the disc parameters, and essentially amounts to the sum of two components: the ...
M. Jim'enez, F. Masset
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Problem of planetary systems existence. II. Expected properties and the first results of the search
Вісник Астрономічної школи, 2004 Specialities of planets composition, their physical properties and classification are discussed. For planetary systems of different ages analysis of coming configurations is carried out. It is shown, that there are two principal vicinities on the diagram
V. A. Zakhozhay
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Planetary migration and the origin of the 2:1 and 3:2 (near)-resonant population of close-in exoplanets [PDF]
, 2017 We present an analytical and numerical study of the orbital migration and resonance capture of fictitious two-planet systems with masses in the super-Earth range undergoing Type-I migration. We find that, depending on the flare index and proximity to the
X. S. Ramos +5 more
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