Other
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21560613b&link_type=abstract
American Astronomical Society, AAS Meeting #215, #606.13; Bulletin of the American Astronomical Society, Vol. 36, p.1131
Other
Scientific paper
We present local and global thermal models of protoplanetary disk dead zones, in an effort to characterize their structure, lifetime, and extent. The models suggest that transition regions between low and high dissipation regions are variable in nature, and subject to dynamic and thermodynamic inputs. Under the right circumstances, such regions may provide a nursery for planetesimal growth, particularly at the outer radial edge, which coincides with preferential locations where gas giant and terrestrial planets may form naturally in other popular models. Further, turbulent flows above the midplane may be mixed radially inward, allowing purely dynamical motions to circumvent long viscous accretion times, thus providing a mechanism whereby chemical species (such as water) are deposited in the planet-forming regions of such disks on unprecedentedly short timescales.
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