Excitation of Turbulence in Protoplanetary Disks around Binary Stars
- Authors: Kurbatov E.P.1, Sytov A.Y.1, Bisikalo D.V.1
- 
							Affiliations: 
							- Institute of Astronomy
 
- Issue: Vol 61, No 12 (2017)
- Pages: 1031-1037
- Section: Article
- URL: https://journals.rcsi.science/1063-7729/article/view/191287
- DOI: https://doi.org/10.1134/S1063772917120058
- ID: 191287
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Abstract
Accretion disks around young binary stars are subject to strong forces exerted by the system components. Gas–dynamical interactions excite strong non-linear perturbations in the disk, which can give rise to turbulence. This study considers a mechanism for the excitation of turbulence based on the instability of non-linear waves in a rotating flow. It is shown that the spectrum of non-linear perturbations excited in the inner part of the disk leads to turbularization of the flow. Estimates of the Shakura–Syunyaev index, α ∼ 0.01−0.05, are obtained for use in numerical models of accretion disks.
About the authors
E. P. Kurbatov
Institute of Astronomy
							Author for correspondence.
							Email: kurbatov@inasan.ru
				                					                																			                												                	Russian Federation, 							Moscow, 119017						
A. Yu. Sytov
Institute of Astronomy
														Email: kurbatov@inasan.ru
				                					                																			                												                	Russian Federation, 							Moscow, 119017						
D. V. Bisikalo
Institute of Astronomy
														Email: kurbatov@inasan.ru
				                					                																			                												                	Russian Federation, 							Moscow, 119017						
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