Results 61 to 70 of about 394,629 (288)
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
, 2003 We critically examine the best lines of evidence for grain growth in protoplanetary disks, based on modelling of observed spectral energy distributions and images of T Tauri and Herbig Ae stars. The data are consistent with millimeter-sized grains near disk midplanes, and micron-sized grains near disk surfaces.
Eugene Chiang
openalex +4 more sources
ALMA Observations of Polarization from Dust Scattering in the IM Lup Protoplanetary Disk [PDF]
Astrophysical Journal, 2018 We present 870 μm ALMA observations of polarized dust emission toward the Class II protoplanetary disk IM Lup. We find that the orientation of the polarized emission is along the minor axis of the disk, and that the value of the polarization fraction ...
Charles L. H. Hull +11 more
semanticscholar +1 more source
Odessa Astronomical Publications, 2017 The mechanism of protoplanetary system formation as a result of a merge of binary star consisting of the low mass (0.5-1M⊙) pre-MS stars is considered. During the merging the more massive component is destroyed. The substance of the destroyed component
F. V. Sirotkin, V. G. Karetnikov
doaj +1 more source
The effect of a planet on the dust distribution in a 3D protoplanetary disk [PDF]
, 2007 Aims: We investigate the behaviour of dust in protoplanetary disks under the action of gas drag in the presence of a planet. Our goal is twofold: to determine the spatial distribution of dust depending on grain size and planet mass, and therefore to ...
Fouchet, L. +3 more
core +3 more sources
CHEMICAL PROCESSES IN PROTOPLANETARY DISKS [PDF]
The Astrophysical Journal, 2010 24 pages, 13 figures, accepted for publication in ...
Walsh, C, Millar, TJ, Nomura, H
openaire +4 more sources
First Detection of the Simplest Organic Acid in a Protoplanetary Disk [PDF]
Astrophysical Journal, 2018 The formation of asteroids, comets, and planets occurs in the interior of protoplanetary disks during the early phase of star formation. Consequently, the chemical composition of the disk might shape the properties of the emerging planetary system.
C. Favre +16 more
semanticscholar +1 more source
Dust amorphization in protoplanetary disks [PDF]
Astronomy & Astrophysics, 2009 accepted for publication by A& ...
Marc Audard +8 more
openaire +6 more sources
The Astrophysical Journal, 2023 Thanks to “dust-to-planet” simulations (DTPSs), which treat the collisional evolution directly from dust to giant-planet cores in a protoplanetary disk, we showed that giant-planet cores are formed in ≲10 au in several 10 ^5 yr, because porous pebbles ...
Hiroshi Kobayashi, Hidekazu Tanaka
doaj +1 more source
RINGED SUBSTRUCTURE AND A GAP AT 1 au IN THE NEAREST PROTOPLANETARY DISK [PDF]
, 2016 We present long baseline Atacama Large Millimeter/submillimeter Array (ALMA) observations of the 870 μm continuum emission from the nearest gas-rich protoplanetary disk, around TW Hya, that trace millimeter-sized particles down to spatial scales as small
S. Andrews +10 more
semanticscholar +1 more source