Search Results - "Mamatsashvili, G. R."

Planetesimal formation in self‐gravitating discs by Gibbons, P. G., Rice, W. K. M., Mamatsashvili, G. R.

“…ABSTRACT We study particle dynamics in local two‐dimensional simulations of self‐gravitating accretion discs with a simple cooling law. It is well known that…”
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Stability of self-gravitating discs under irradiation by Rice, W. K. M., Armitage, P. J., Mamatsashvili, G. R., Lodato, G., Clarke, C. J.

“…Self-gravity becomes competitive as an angular momentum transport process in accretion discs at large radii, where the temperature is low enough that external…”
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Axisymmetric modes in vertically stratified self-gravitating discs by Mamatsashvili, G. R., Rice, W. K. M.

“…We carry out a linear analysis of the vertical normal modes of axisymmetric perturbations in stratified, compressible, self-gravitating gaseous discs in the…”
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Vortices in self-gravitating gaseous discs by Mamatsashvili, G. R., Rice, W. K. M.

“…Vortices have recently received much attention in the research of planet formation, as they are believed to play a role in the formation of km-sized…”
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Transient growth and coupling of vortex and wave modes in self-gravitating gaseous discs by Mamatsashvili, G. R., Chagelishvili, G. D.

“…Linear transient phenomena induced by flow non-normality in thin self-gravitating astrophysical discs are studied using the shearing sheet approximation. The…”
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Interlaced dynamics of density waves and vortices in self-gravitating Discs by Mamatsashvili, G. R.

“…Latest developments in the dynamics of density waves and vortices in selfgravitating protoplanetary discs is reviewed. It is well established by now that in…”
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Planetesimal formation in self-gravitating discs – dust trapping by vortices by Gibbons, P. G., Mamatsashvili, G. R., Rice, W. K. M.

“…The mechanism through which metre-sized boulders grow to km-sized planetesimals in protoplanetary discs is a subject of active research, since it is critical…”
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Planetesimal formation in self-gravitating discs – the effects of particle self-gravity and back-reaction by Gibbons, P. G., Mamatsashvili, G. R., Rice, W. K. M.

“…We study particle dynamics in self-gravitating gaseous discs with a simple cooling law prescription via two-dimensional simulations in the shearing sheet…”
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Revisiting linear dynamics of non-axisymmetric perturbations in weakly magnetized accretion discs by Mamatsashvili, G. R., Chagelishvili, G. D., Bodo, G., Rossi, P.

“…We investigate the linear dynamics of non-axisymmetric perturbations in incompressible, vertically stratified Keplerian discs threaded by a weak non-zero net…”
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Linear dynamics of non‐symmetric perturbations in geostrophic horizontal shear flows by Kalashnik, M. V., Mamatsashvili, G. R., Chagelishvili, G.D., Lominadze, J. G.

“…The linear dynamics of non‐symmetric wave and vortex mode perturbations in spectrally stable geostrophic zonal flows with a constant horizontal shear along the…”
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Excitation of spiral density waves by convection in accretion discs by Mamatsashvili, G. R., Rice, W. K. M.

“…Motivated by the recent results of Lesur & Ogilvie on the transport properties of incompressible convection in protoplanetary discs, in this paper we study the…”
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Nonlinear transverse cascade and two-dimensional magnetohydrodynamic subcritical turbulence in plane shear flows by Mamatsashvili, G R, Gogichaishvili, D Z, Chagelishvili, G D, Horton, W

“…We find and investigate via numerical simulations self-sustained two-dimensional turbulence in a magnetohydrodynamic flow with a maximally simple…”
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Planetesimal formation in self-gravitating discs -- dust trapping by vortices by Gibbons, P. G, Mamatsashvili, G. R, Rice, W. K. M

“…The mechanism through which meter-sized boulders grow to km-sized planetesimals in protoplanetary discs is a subject of active research, since it is critical…”
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Excitation of spiral density waves by convection in accretion discs: Excitation of SDWs by convection in discs by Mamatsashvili, G. R., Rice, W. K. M.

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Nonlinear transverse cascade and two-dimensional magnetohydrodynamic subcritical turbulence in plane shear flows by Mamatsashvili, G. R, Gogichaishvili, D. Z, Chagelishvili, G. D, Horton, W

“…We find and investigate via numerical simulations self-sustained two-dimensional turbulence in a magnetohydrodynamic flow with a maximally simple…”
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Revisiting linear dynamics of non-axisymmetric perturbations in weakly magnetized accretion discs by Mamatsashvili, G. R, Chagelishvili, G. D, Bodo, G, Rossi, P

“…We investigate linear dynamics of non-axisymmetric perturbations in incompressible, vertically stratified Keplerian discs with a weak vertical magnetic field…”
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Planetesimal formation in self-gravitating discs: the effects of particle self-gravity and back-reaction by Gibbons, P. G, Mamatsashvili, G. R, Rice, W. K. M

“…We study particle dynamics in self-gravitating gaseous discs with a simple cooling law prescription via two-dimensional simulations in the shearing sheet…”
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Axisymmetric modes in vertically stratified self-gravitating discs by Mamatsashvili, G. R., Rice, W. K. M.

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Axisymmetric modes in vertically stratified self-gravitating discs: Modes in stratified self-gravitating discs by Mamatsashvili, G. R., Rice, W. K. M.

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Planetesimal Formation In Self-Gravitating Discs by Gibbons, P. G, Rice, W. K. M, Mamatsashvili, G. R

“…We study particle dynamics in local two-dimensional simulations of self-gravitating accretion discs with a simple cooling law. It is well known that the…”
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