Gravitational Instability of Protoplanetary Disc | Sciact - CRIS-system of Boreskov Institute of Catalysis

Gravitational Instability of Protoplanetary Disc Conference Abstracts

Conference

Biosphere Origin and Evolution : International Workshop
26-29 Jun 2005 , Новосибирск

Source

Международное рабочее совещание «Происхождение и эволюция биосферы», Новосибирск, 26–29 июня 2005 года : тезисы докладов
Compilation, ИК СО РАН. Новосибирск.2005. 340 c. РИНЦ

Output data

Year: 2005, Article number : PP-10, Pages count : 1

Authors

Nikitin S.A. ¹ , Snytnikov V.N. ² , Vshivkov V.A. ³

Affiliations

1	Budker Institute of Nuclear Physics, Siberian Branch of the Russian Academy of Sciences, 11, Lavrentiev prospect, Novosibirsk, 630090
2	Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, 5, Lavrent'ev prospect, Novosibirsk, 630090
3	Institute of Computational Mathematics and Mathematical Geophysics, Siberian Branch RAS, 6, Prospect Akad. Lavrentieva, Novosibirsk, 630090

Solid phase condensation dynamics is an important element for the theory of planet formation as well as for the hypothesis of abiogenous synthesis in a protoplanetary gas-dust disc concerned as a global chemical reactor. We use 3D2V numerical model for simulation of nonstationary processes in self-consistent gravitating systems of N-bodies and gas taking into account also external fields (from a central mass and other sources fixed in space). The model is based on co-solving 3D Poison equation, Vlasov equation (PIC method) and the system of gasdynamic equations provided the motions are constrained in the disc plane. Some questions in our study are as follows. What are dimensionless parameters affecting the threshold of two-phase system transition from a stable to unstable state? Could changes in parameters of the component of very low content cause instability of the system as a whole? How does the threshold of transition from a stable to unstable state depend on the central mass? The results of simulation experiments are represented and discussed.

Nikitin S.A. , Snytnikov V.N. , Vshivkov V.A.
Gravitational Instability of Protoplanetary Disc
In compilation Международное рабочее совещание «Происхождение и эволюция биосферы», Новосибирск, 26–29 июня 2005 года : тезисы докладов. – ИК СО РАН., 2005. – C.133-. РИНЦ

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