DEUTERIUM CHEMISTRY IN PROTOPLANETARY DISKS. II. THE INNER 30 AU

2009/08/07 by K. Willacy, P. Woods, P. M. Woods · 3 citations
Chemistry · Physics and Astronomy · #Accretion (finance) #Astro and Planetary Science #Astrochemistry #Astrophysics and Star Formation Studies #Cosmochemistry #Deuterium #Fullerene Chemistry and Applications #Hydrogen #Molecular cloud #Planet #Protoplanetary disk #Protostar #astro-ph.SR

paper · pdf · doi:10.1088/0004-637x/703/1/479

Accepted by Astrophysical Journal

arxiv created 2009/08/07 · openalex publication_date 2009/08/27 · arxiv updated 2015/05/13 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We present the results of models of the chemistry, including deuterium, in the inner regions of protostellar disks. We find good agreement with recent gas-phase observations of several (non-deuterated) species. We also compare our results with observations of comets and find that in the absence of other processing, e.g., in the accretion shock at the surface of the disk, or by mixing in the disk, the calculated D/H ratios in ices are higher than measured and reflect the D/H ratio set in the molecular cloud phase. Our models give quite different abundances and molecular distributions to other inner disk models because of the differences in physical conditions in the model disk. This emphasizes how changes in the assumptions about the density and temperature distribution can radically affect the results of chemical models.

Citations

• CARBON ISOTOPE FRACTIONATION IN PROTOPLANETARY DISKS
• What Is the Total Deuterium Abundance in the Local Galactic Disk?
• Rossby Wave Instability of Thin Accretion Disks. II. Detailed Linear Theory
• Accretion Disks around Young Objects. III. Grain Growth
• Turbulence in Accretion Disks: Vorticity Generation and Angular Momentum Transport via the Global Baroclinic Instability
• A powerful local shear instability in weakly magnetized disks. I - Linear analysis. II - Nonlinear evolution
• The Effects of UV Continuum and Ly Radiation on the Chemical Equilibrium of T Tauri Disks
• Stability of density-stratified viscous Taylor-Couette flows
• Molecular Hydrogen Formation in the Interstellar Medium
• H 2 O and OH Gas in the Terrestrial Planet-forming Zones of Protoplanetary Disks
• The deuterium abundance in Jupiter and Saturn from ISO-SWS observations
• Hot Organic Molecules toward a Young Low-Mass Star: A Look at Inner Disk Chemistry
• Formation of simple organic molecules in inner T Tauri disks
• Galileo Probe Measurements of D/H and 3He/4He in Jupiter's Atmosphere
• Reduction of chemical networks

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