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Planet Formation in Binaries [PDF]

open access: yes, 2015
Spurred by the discovery of numerous exoplanets in multiple systems, binaries have become in recent years one of the main topics in planet formation research. Numerous studies have investigated to what extent the presence of a stellar companion can affect the planet formation process.
Nader Haghighipour, Ph. Thebault
openaire   +4 more sources

Revisiting Collisional Dust Growth in Class 0/I Protostellar Disks: Sweep-up Can Convert a Few 10 M ⊕ of Dust into Kilogram Pebbles in 0.1 Myr

open access: yesThe Astrophysical Journal, 2023
Recent observations suggest that the first stages of planet formation likely take place in the Class 0/I phase of young stellar object evolution, when the star and the disk are still embedded in an infalling envelope.
Wenrui Xu, Philip J. Armitage
doaj   +1 more source

Pebble-driven planet formation for TRAPPIST-1 and other compact systems [PDF]

open access: yesAstronomy & Astrophysics, 2019
Recently, seven Earth-sized planets were discovered around the M-dwarf star TRAPPIST-1. Thanks to transit-timing variations, the masses and therefore the bulk densities of the planets have been constrained, suggesting that all TRAPPIST-1 planets are ...
D. Schoonenberg   +3 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

Evidence for the start of planet formation in a young circumstellar disk [PDF]

open access: yesNature Astronomy, 2018
The growth of dust grains in protoplanetary disks is a necessary first step towards planet formation1. This growth has been inferred from observations of thermal dust emission2 towards mature protoplanetary systems (age >2 million years) with masses that
D. Harsono   +6 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

Connecting planet formation and astrochemistry [PDF]

open access: yesAstronomy & Astrophysics, 2019
To understand the role that planet formation history has on the observable atmospheric carbon-to-oxygen ratio (C/O) we have produced a population of astrochemically evolving protoplanetary disks.
A. Cridland   +3 more
semanticscholar   +1 more source

The Delivery of Water During Terrestrial Planet Formation [PDF]

open access: yesSpace Science Reviews, 2018
The planetary building blocks that formed in the terrestrial planet region were likely very dry, yet water is comparatively abundant on Earth. Here we review the various mechanisms proposed for the origin of water on the terrestrial planets.
D. O'Brien   +4 more
semanticscholar   +1 more source

Evidence of an Upper Bound on the Masses of Planets and Its Implications for Giant Planet Formation [PDF]

open access: yes, 2018
Celestial bodies with a mass of have been found orbiting nearby stars. It is unknown whether these objects formed like gas-giant planets through core accretion or like stars through gravitational instability.
K. Schlaufman
semanticscholar   +1 more source

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