Formation of Planetesimals by Burgers Vortex
International Journal of Astrophysics and Space Science
Volume 4, Issue 3, June 2016, Pages: 26-31
Received: Aug. 23, 2016; Accepted: Sep. 1, 2016; Published: Sep. 21, 2016
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Author
Martin G. Abrahamyan, Department of Physics, Yerevan State University, Yerevan, Armenia
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Abstract
The effect of a Burgers vortex on formation of planetesimals in a protoplanetary disc in local approach is considered. It is shown that there is not any circular orbit for rigid particles in centrifugal balance; only stable position in Burgers vortex under the influence of centrifugal, Coriolis, pressure gradient and Stokes drag forces is the center of vortex. The two-dimensional anticyclonic Burgers vortex with homogeneously rotating kernel and a converging radial stream of substance can effectively accumulate in its nuclear area the meter-sized rigid particles of total mass ~1028g for characteristic time ~ 106yr.
Keywords
Protoplanetary Disc, Burgers Vortex, Planetesimals
To cite this article
Martin G. Abrahamyan, Formation of Planetesimals by Burgers Vortex, International Journal of Astrophysics and Space Science. Vol. 4, No. 3, 2016, pp. 26-31. doi: 10.11648/j.ijass.20160403.11
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Copyright © 2016 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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