Results 21 to 30 of about 398,118 (263)

Global Hydromagnetic Simulations of Protoplanetary Disks with Stellar Irradiation and Simplified Thermochemistry [PDF]

open access: yesAstrophysical Journal, 2020
Outflows driven by large-scale magnetic fields likely play an important role in the evolution and dispersal of protoplanetary disks and in setting the conditions for planet formation.
O. Gressel   +5 more
semanticscholar   +1 more source

An Unbiased ALMA Spectral Survey of the LkCa 15 and MWC 480 Protoplanetary Disks [PDF]

open access: yesAstrophysical Journal, 2020
The volatile contents of protoplanetary disks both set the potential for planetary chemistry and provide valuable probes of defining disk system characteristics such as stellar mass, gas mass, ionization, and temperature structure. Current disk molecular
R. Loomis   +15 more
semanticscholar   +1 more source

An Evolutionary Study of Volatile Chemistry in Protoplanetary Disks [PDF]

open access: yesAstrophysical Journal, 2020
The volatile composition of a planet is determined by the inventory of gas and ice in the parent disk. The volatile chemistry in the disk is expected to evolve over time, though this evolution is poorly constrained observationally.
J. Bergner   +13 more
semanticscholar   +1 more source

Demographics of Protoplanetary Disks: A Simulated Population of Edge-on Systems

open access: yesThe Astrophysical Journal, 2023
The structure of protoplanetary disks plays an essential role in planet formation. A disk that is highly inclined, or “edge-on,” is of particular interest since its geometry provides a unique opportunity to study the disk’s vertical structure and radial ...
Isabel Angelo   +11 more
doaj   +1 more source

A numerical approach to model chemistry of complex organic molecules in a protoplanetary disk

open access: yesOpen Astronomy, 2022
Multiphase astrochemical modeling presents a numerical challenge especially for the simulation of objects with the wide range of physical parameters such as protoplanetary disks.
Kiskin Mikhail Yu.   +2 more
doaj   +1 more source

Kinematic Evidence of an Embedded Protoplanet in HD 142666 Identified by Machine Learning

open access: yesThe Astrophysical Journal, 2023
Observations of protoplanetary disks have shown that forming exoplanets leave characteristic imprints on the gas and dust of the disk. In the gas, these forming exoplanets cause deviations from Keplerian motion, which can be detected through molecular ...
J. P. Terry   +3 more
doaj   +1 more source

Volatiles in protoplanetary disks [PDF]

open access: yes, 2014
Volatiles are compounds with low sublimation temperatures, and they make up most of the condensible mass in typical planet-forming environments. They consist of relatively small, often hydrogenated, molecules based on the abundant elements carbon ...
Bergin, Edwin A.   +6 more
core   +2 more sources

Contacts of Water Ice in Protoplanetary Disks—Laboratory Experiments [PDF]

open access: yesAstrophysical Journal, 2019
Water ice is abundant in protoplanetary disks. Its sticking properties are therefore important during phases of collisional growth. In this work, we study the sticking and rolling of 1.1 mm ice grains at different temperatures.
G. Musiolik, G. Wurm
semanticscholar   +1 more source

On the Evolution of Dust Mineralogy, From Protoplanetary Disks to Planetary Systems [PDF]

open access: yes, 2011
Mineralogical studies of silicate features emitted by dust grains in protoplanetary disks and Solar System bodies can shed light on the progress of planet formation.
Beckwith   +55 more
core   +3 more sources

Gas line observations of disks*

open access: yesEPJ Web of Conferences, 2015
Gas represents the bulk of the mass content in protoplanetary disks. It is therefore observations of gas that can provide important information of physical structure and chemical evolution of disks.
Dionatos Odysseas
doaj   +1 more source

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