Results 11 to 20 of about 18,502 (219)
Chemical Processes in Protoplanetary Disks [PDF]
We have developed a high resolution combined physical and chemical model of a protoplanetary disk surrounding a typical T Tauri star. Our aims were to use our model to calculate the chemical structure of disks on small scales (sub-milli-arcsecond in the ...
Aikawa +38 more
core +6 more sources
Chemistry in Protoplanetary Disks [PDF]
This comprehensive review summarizes our current understanding of the evolution of gas, solids and molecular ices in protoplanetary disks. Key findings related to disk physics and chemistry, both observationally and theoretically, are highlighted.
Henning, Thomas, Semenov, Dmitry
openaire +4 more sources
Photoprocesses in protoplanetary disks [PDF]
Circumstellar disks are exposed to intense ultraviolet radiation from the young star. In the inner disks, the UV radiation can be enhanced by more than seven orders of magnitude compared with the average interstellar field, resulting in a physical and chemical structure that resembles that of a dense photon-dominated region (PDR). This intense UV field
van Dishoeck, E. F. +2 more
openaire +3 more sources
SILICA IN PROTOPLANETARY DISKS [PDF]
47 pages, 9 figures, to appear in the 1 January, 2009 issue of the Astrophysical ...
Sargent, B. A. +12 more
openaire +2 more sources
HNC IN PROTOPLANETARY DISKS [PDF]
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
openaire +3 more sources
Volatiles in Protoplanetary Disks [PDF]
Volatiles are compounds with low sublimation temperatures, and they make up most of the condensible mass in typical planet-forming environments. They consist of relatively small, often hydrogenated, molecules based on the abundant elements carbon, nitrogen and oxygen.
Pontoppidan, K. M. +6 more
openaire +2 more sources
VORTEX MIGRATION IN PROTOPLANETARY DISKS [PDF]
13 pages, 13 figures, accepted for publication in ...
Paardekooper, Sijme-Jan +2 more
openaire +6 more sources
The Inner Regions of Protoplanetary Disks [PDF]
To understand how planetary systems form in the dusty disks around pre-main-sequence stars, a detailed knowledge of the structure and evolution of these disks is required. Although this is reasonably well understood for the regions of the disk beyond about 1 AU, the structure of these disks inward of 1 AU remains a puzzle. This is partly because it is
Dullemond, C. P., Monnier, J. D.
openaire +2 more sources
Demographics of Protoplanetary Disks: A Simulated Population of Edge-on Systems
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
The effect of a planet on the dust distribution in a 3D protoplanetary disk [PDF]
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

