Size Distribution of Dust grains in Vortices in a Protoplanetary Disk

Details Size Distribution of Dust grains in Vortices in a Protoplanetary Disk Size Distribution of Dust grains in Vortices in a Protoplanetary Disk

Aug 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aipc.1158..133k&link_type=abstract

EXOPLANETS AND DISKS: THEIR FORMATION AND DIVERSITY: Proceedings of the International Conference. AIP Conference Proceedings, V

Physics

Interplanetary Dust And Gas, Star Formation, Accretion And Accretion Disks

Scientific paper

We investigate dust accumulation in elliptical vortices in a protoplanetary disk. We solved the equation of dust motion with gas drag, and obtain the dust surface density distribution in the vortex and mass enhancement factor in the planetesimal-forming region of the vortex. As a result, the mm-sized and cm-sized dust aggregates increase by a factor of 10 and 100, suggesting that the gravitational instability of dust layer in the vortices will occur.

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