The gas disk: Evolution and chemistry

Abstract

Protoplanetary disks are the birthplaces of planetary systems. The evolution of the star-disk system and the disk chemical composition determines the initial conditions for planet formation. Therefore a comprehensive understanding of the main physical and chemical processes in disks is crucial for our understanding of planet formation. We give an overview of the early evolution of disks, discuss the importance of the stellar high-energy radiation for disk evolution and describe the general thermal and chemical structure of disks. Finally we provide an overview of observational tracers of the gas component and disk winds.

45 pages, 15 figures. Accepted for publication as a chapter in the International Space Science Institute (ISSI) Book on "The Disk in Relation to the Formation of Planets and their Proto-atmospheres", published in Space Science Reviews by Springer

References in corpus (46)

• Photoevaporation of protoplanetary discs II: evolutionary models and observable properties
• The 2014 KIDA network for interstellar chemistry
• The Burst Mode of Protostellar Accretion
• The properties of brown dwarfs and low-mass hydrogen-burning stars formed by disc fragmentation
• Evidence of fast pebble growth near condensation fronts in the HL Tau protoplanetary disk
• Photoevaporation of protoplanetary discs I: hydrodynamic models
• The structure of protoplanetary discs around evolving young stars
• The Two Modes of Gas Giant Planet Formation
• A Spitzer view of protoplanetary disks in the gamma Velorum cluster
• Constraining the X-ray and Cosmic Ray Ionization Chemistry of the TW Hya Protoplanetary Disk: Evidence for a Sub-interstellar Cosmic Ray Rate
• Variable protostellar accretion with episodic bursts
• Protoplanetary disk masses from CO isotopologues line emission
• Formation of a Keplerian disk in the infalling envelope around L1527 IRS: transformation from infalling motions to Kepler motions
• Global Models for the Evolution of Embedded, Accreting Protostellar Disks
• X-ray irradiated protoplanetary disk atmospheres I: Predicted emission line spectrum and photoevaporation
• On the gas content of transitional disks: a VLT/X-Shooter study of accretion and winds
• The Hot Inner Disk of FU Ori
• X-ray Emission from T Tauri Stars and the Role of Accretion: Inferences from the XMM-Newton Extended Survey of the Taurus Molecular Cloud
• Line Emission from Gas in Optically Thick Dust Disks around Young Stars
• c2d Spitzer IRS Spectra of Disks around T Tauri Stars. III. [Ne II], [Fe I], and H_2 gas-phase lines
• Reprocessing of Ices in Turbulent Protoplanetary Disks: Carbon and Nitrogen Chemistry
• Disk evolution, element abundances and cloud properties of young gas giant planets
• Discovery of a bipolar X-ray jet from the T Tauri star DG Tau
• Water vapor distribution in protoplanetary disks
• X-Shooter spectroscopy of young stellar objects: V - Slow winds in T Tauri stars
• Gas-phase CO in protoplanetary disks: a challenge for turbulent mixing
• X-ray properties of protostars in the Orion Nebula
• The X-ray soft excess in classical T Tauri stars
• Exploring the Origins of Carbon in Terrestrial Worlds
• A statistical analysis of X-ray variability in pre-main sequence objects of the Taurus Molecular Cloud
• Interferometric Identification of a Pre-Brown Dwarf
• Chemistry in Protoplanetary Disks: the gas-phase CO/H2 ratio and the Carbon reservoir
• On the reliability of protostellar disc mass measurements and the existence of fragmenting discs
• Chemistry in Disks. IX. Observations and modeling of HCO+ and DCO+ in DM Tau
• IC348-SMM2E: a Class 0 proto-brown dwarf candidate forming as a scaled-down version of low-mass stars
• The link between disc dispersal by photoevaporation and the semi-major axis distribution of exoplanets
• High-resolution Spectroscopy of [Ne II] Emission from TW Hya
• Chemical tracers of episodic accretion in low-mass protostars
• Low EUV Luminosities Impinging on Protoplanetary Disks
• Analytical Formulas of Molecular Ion Abundances and N2H+ Ring in Protoplanetary Disks
• ALMA Observations of the T Tauri Binary System AS 205: Evidence for Molecular Winds and/or Binary Interactions
• An outflow origin of the [NeII] emission in the T Tau triplet
• Spatially resolved HCN J=4--3 and CS J=7--6 emission from the disk around HD 142527
• Complex organic molecules along the accretion flow in isolated and externally irradiated protoplanetary disks
• The chemistry of planet-forming regions is not interstellar
• An Unbiased 1.3 mm Emission Line Survey of the Protoplanetary Disk Orbiting LkCa 15