Observations of Protoplanetary Disk Structures [PDF]
, 2020 The disks that orbit young stars are the essential conduits and reservoirs of material for star and planet formation. Their structures, meaning the spatial variations of the disk physical conditions, reflect the underlying mechanisms that drive those ...
S. Andrews
semanticscholar +1 more source
Rapid Evolution of Volatile CO from the Protostellar Disk Stage to the Protoplanetary Disk Stage [PDF]
Astrophysical Journal, 2020 Recent observations show that the CO gas abundance, relative to H2, in many 1–10 Myr old protoplanetary disks may be heavily depleted by a factor of 10–100 compared to the canonical interstellar medium (ISM) value of 10−4.
Ke Zhang, K. Schwarz, E. Bergin
semanticscholar +1 more source
Open Astronomy, 2021 Kaba meteorite as a reference material (one of a least metamorphosed and most primitive carbonaceous chondrites fell on Earth) was chosen for this study providing an adequate background for study of the protoplanetary disk or even the crystallization ...
Futó Péter +9 more
doaj +1 more source
Modeling protoplanetary disk SEDs with artificial neural networks: Revisiting the viscous disk model and updated disk masses [PDF]
Astronomy & Astrophysics, 2020 We model the spectral energy distributions (SEDs) of 23 protoplanetary disks in the Taurus-Auriga star-forming region using detailed disk models and a Bayesian approach.
Álvaro Ribas +3 more
semanticscholar +1 more source
Protoplanetary Disk Rings as Sites for Planetesimal Formation [PDF]
, 2020 Axisymmetric dust rings are a ubiquitous feature of young protoplanetary disks. These rings are likely caused by pressure bumps in the gas profile; a small bump can induce a traffic-jam-like pattern in the dust density, while a large bump may halt radial
D. Carrera +4 more
semanticscholar +1 more source
Herschel evidence for disk flattening or gas depletion in transitional disks [PDF]
, 2014 Transitional disks are protoplanetary disks characterized by reduced near- and mid-infrared emission with respect to full disks. This characteristic spectral energy distribution indicates the presence of an optically thin inner cavity within the dust ...
Andrews, S. +8 more
core +7 more sources
PPDONet: Deep Operator Networks for Fast Prediction of Steady-state Solutions in Disk–Planet Systems
The Astrophysical Journal Letters, 2023 We develop a tool, which we name Protoplanetary Disk Operator Network (PPDONet), that can predict the solution of disk–planet interactions in protoplanetary disks in real time.
Shunyuan Mao +5 more
doaj +1 more source
Gas- and dust evolution in protoplanetary disks [PDF]
, 2010 Context. Current models of the size- and radial evolution of dust in protoplanetary disks generally oversimplify either the radial evolution of the disk (by focussing at one single radius or by using steady state disk models) or they assume particle ...
Birnstiel, T. +2 more
core +1 more source
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
2018 Census of Interstellar, Circumstellar, Extragalactic, Protoplanetary Disk, and Exoplanetary Molecules [PDF]
Astrophysical Journal Supplement Series, 2018 To date, 204 individual molecular species, comprised of 16 different elements, have been detected in the interstellar and circumstellar medium by astronomical observations.
B. McGuire
semanticscholar +1 more source