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Saving Planetary Systems: Dead Zones & Planetary Migration [PDF]

open access: yesThe Astrophysical Journal, 2006
The tidal interaction between a disk and a planet leads to the planet's migration. A long-standing question regarding this mechanism is how to stop the migration before planets plunge into their central stars.
Edward W. Thommes   +3 more
core   +6 more sources

Unconditional hospitality: art and commons under planetary migration

open access: yesJournal 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
doaj   +2 more sources

Arthropod-borne disease challenges from planetary warming, urbanization, and migration [PDF]

open access: yesVirology Journal
As the world confronts simultaneous climate and health emergencies, the spread of emerging infectious diseases, particularly arboviruses, underscores the intersection of planetary health, global mobility, and disease risk. Viral pathogens like Oropouche,
Maggie L. Bartlett   +3 more
doaj   +2 more sources

Percolative sulfide core formation in oxidized planetary bodies [PDF]

open access: yesNature Communications
Models of planetary core formation traditionally involve the fractionation of Fe,Ni-metal melts from silicate mantles after extensive silicate melting.
Samuel D. Crossley   +9 more
doaj   +2 more sources

Origin of compact exoplanetary systems during disk infall [PDF]

open access: yesNature Communications
Exoplanetary systems that contain multiple planets on short-period orbits appear to be prevalent in the current observed exoplanetary population, yet the processes that give rise to such configurations remain poorly understood.
Raluca Rufu, Robin M. Canup
doaj   +2 more sources

Planetary formation and early phases

open access: yesComptes 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
doaj   +1 more source

Dissipative Capture of Planets into First-order Mean-motion Resonances

open access: yesThe 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
doaj   +1 more source

Evidence for Hidden Nearby Companions to Hot Jupiters

open access: yesThe 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
doaj   +1 more source

TOI-1136 is a Young, Coplanar, Aligned Planetary System in a Pristine Resonant Chain

open access: yesThe 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
doaj   +1 more source

Quantifying the Impact of the Dust Torque on the Migration of Low-mass Planets

open access: yesThe 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
doaj   +1 more source

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