Results 1 to 10 of about 279 (68)
Terrestrial planetary plants: Essential preparations for interstellar migration
Current Plant BiologyInterstellar migration offers great potential for expanding human habitable space. As a powerful entropy-reducing system, plants convert simple, disordered chemical elements into complex, ordered organic macromolecules.
Jiasui Zhan, Maozhi Ren, Xiumei Luo
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Planetary formation and early phases
Comptes Rendus. Physique, 2023 Planets form in proto-planetary disks. In this review, we describe the structure and properties of such disks, and the various phenomenons that lead to the final product: a planetary system. First, micrometre dust settles and coagulates.
Crida, Aurélien
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Dissipative Capture of Planets into First-order Mean-motion Resonances
The Astrophysical Journal Letters, 2023 The emergence of orbital resonances among planets is a natural consequence of the early dynamical evolution of planetary systems. While it is well established that convergent migration is necessary for mean-motion commensurabilities to emerge, recent ...
Konstantin Batygin, Antoine C. Petit
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Evidence for Hidden Nearby Companions to Hot Jupiters
The Astronomical Journal, 2023 The first discovered extrasolar worlds—giant, “hot Jupiter” planets on short-period orbits—came as a surprise to solar system–centric models of planet formation, prompting the development of new theories for planetary system evolution.
Dong-Hong Wu, Malena Rice, Songhu Wang
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Unconditional hospitality: art and commons under planetary migration
Journal of Aesthetics & Culture, 2022 In both European and non-European cities, public spaces are formed by racist and segregative politics that influence everyday life. Planetary migration flows and recently implemented border politics tend to leave the most vulnerable in precarious ...
Pelin Tan
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TOI-1136 is a Young, Coplanar, Aligned Planetary System in a Pristine Resonant Chain
The Astronomical Journal, 2023 Convergent disk migration has long been suspected to be responsible for forming planetary systems with a chain of mean-motion resonances (MMRs). Dynamical evolution over time could disrupt the delicate resonant configuration. We present TOI-1136, a 700 ±
Fei Dai +62 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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Good Combination of the Rossiter-McLaughlin Measurements and Direct Imaging Observations
EPJ Web of Conferences, 2011 We introduce a novel methodology to distinguish planetary migration mechanisms by a combination of Rossiter-McLaughlin measurements and direct imaging observations.
Narita N.
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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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