Results 51 to 60 of about 5,169,486 (343)

Planet Formation Imager (PFI): Introduction and Technical Considerations [PDF]

open access: yes, 2014
Complex non-linear and dynamic processes lie at the heart of the planet formation process. Through numerical simulation and basic observational constraints, the basics of planet formation are now coming into focus.
Berger, J.-P.   +19 more
core   +2 more sources

External photoevaporation of circumstellar discs constrains the time-scale for planet formation [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2019
Planet-forming circumstellar discs are a fundamental part of the star formation process. Since stars form in a hierarchical fashion in groups of up to hundreds or thousands, the UV radiation environment that these discs are exposed to can vary in ...
Francisca Concha-Ram'irez   +3 more
semanticscholar   +1 more source

Composition and Sticking of Hot Chondritic Dust in a Protoplanetary Hydrogen Atmosphere

open access: yesThe Planetary Science Journal, 2023
The sticking properties of dust in early phases of planet formation depend on the thermal history and ambient atmosphere. Therefore, dust will change its ability to build larger aggregates in collisions, depending on its location in protoplanetary disks.
Cynthia Pillich   +5 more
doaj   +1 more source

Magnetically induced termination of giant planet formation [PDF]

open access: yes, 2018
Here a physical model for terminating giant planet formation is outlined and compared to other methods of late-stage giant planet formation. As has been pointed out before, gas accreting into a gap and onto the planet will encounter the planetary dynamo ...
Cridland, A. J.
core   +3 more sources

How much does turbulence change the pebble isolation mass for planet formation? [PDF]

open access: yesAstronomy & Astrophysics, 2018
Context. When a planet becomes massive enough, it gradually carves a partial gap around its orbit in the protoplanetary disk. A pressure maximum can be formed outside the gap where solids that are loosely coupled to the gas, typically in the pebble size ...
S. Ataiee   +3 more
semanticscholar   +1 more source

Diverse outcomes of planet formation and composition around low-mass stars and brown dwarfs [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2019
The detection of Earth-size exoplanets around low-mass stars –in stars such as Proxima Centauri and TRAPPIST-1– provide an exceptional chance to improve our understanding of the formation of planets around M stars and brown dwarfs.
Yamila Miguel   +4 more
semanticscholar   +1 more source

Multiple Rings and Asymmetric Structures in the Disk of SR 21

open access: yesThe Astrophysical Journal, 2023
Crescent-like asymmetric dust structures discovered in protoplanetary disks indicate dust aggregations. Thus, researching these structures helps us understand the planet formation process. Here we analyze ALMA data of the protoplanetary disk around the T-
Yi Yang   +11 more
doaj   +1 more source

The Role of Multiplicity in Disk Evolution and Planet Formation [PDF]

open access: yes, 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
core   +3 more sources

The Presolar Heritage of 50Ti and 26Al Heterogeneity in the Protoplanetary Disk

open access: yesThe Astrophysical Journal
Nucleosynthetic isotope anomalies have been documented within the solar protoplanetary disk for several isotopes, including ^48 Ca, ^50 Ti, ^54 Cr, ^94 Mo, and ^96 Zr.
Kirsten K. Larsen   +5 more
doaj   +1 more source

Migration and giant planet formation

open access: yes, 2004
We extend the core-accretion model of giant gaseous planets by Pollack et al. (\cite{P96}) to include migration, disc evolution and gap formation. Starting with a core of a fraction of an Earth's mass located at 8 AU, we end our simulation with the onset
Alibert, Y., Benz, W., Mordasini, C.
core   +1 more source

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