Results 11 to 20 of about 16,676 (207)
Protoplanetary Disks and Their Evolution
Annual Review of Astronomy and Astrophysics, 2011 Flattened, rotating disks of cool dust and gas extending for tens to hundreds of AU are found around almost all low mass stars shortly after their birth.
Cieza, Lucas A., Williams, Jonathan P.
core +3 more sources
A numerical approach to model chemistry of complex organic molecules in a protoplanetary disk
Open 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
HNC IN PROTOPLANETARY DISKS [PDF]
The Astrophysical Journal, 2015 The distributions and abundances of small organics in protoplanetary disks are potentially powerful probes of disk physics and chemistry. HNC is a common probe of dense interstellar regions and the target of this study. We use the Submillimeter Array (SMA) to observe HNC 3--2 towards the protoplanetary disks around the T Tauri star TW Hya and the ...
Dawn Graninger +3 more
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Demographics of Protoplanetary Disks: A Simulated Population of Edge-on Systems
The 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
Kinematic Evidence of an Embedded Protoplanet in HD 142666 Identified by Machine Learning
The 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
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Massive Protostellar Disks as a Hot Laboratory of Silicate Grain Evolution
The Astrophysical Journal, 2023 Typical accretion disks around massive protostars are hot enough for water ice to sublimate. We here propose to utilize the massive protostellar disks for investigating the collisional evolution of silicate grains with no ice mantle, which is an ...
Ryota Yamamuro +2 more
doaj +1 more source
On the Evolution of Dust Mineralogy, From Protoplanetary Disks to Planetary Systems [PDF]
, 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 +4 more sources
Gas line observations of disks*
EPJ 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
VORTEX MIGRATION IN PROTOPLANETARY DISKS [PDF]
The Astrophysical Journal, 2010 13 pages, 13 figures, accepted for publication in ...
Paardekooper, Sijme-Jan +2 more
openaire +6 more sources
MAGNETO-THERMAL DISK WINDS FROM PROTOPLANETARY DISKS [PDF]
The Astrophysical Journal, 2016 ABSTRACT The global evolution and dispersal of protoplanetary disks (PPDs) are governed by disk angular-momentum transport and mass-loss processes. Recent numerical studies suggest that angular-momentum transport in the inner region of PPDs is largely driven by magnetized disk wind, yet the wind mass-loss rate remains unconstrained.
Xue-Ning Bai +3 more
openaire +2 more sources