Numerical study of the non-linear stage of thermal instability in cooling flows

Details Numerical study of the non-linear stage of thermal instability in cooling flows Numerical study of the non-linear stage of thermal instability in cooling flows

Feb 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990mnras.242..399h&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 242, Feb. 1, 1990, p. 399-418.

Statistics

Computation

40

Computational Astrophysics, Cooling Flows (Astrophysics), Cosmic Gases, Galactic Clusters, Thermal Instability, Astronomical Models, Density Distribution, Gravitational Effects, Intergalactic Media, Perturbation Theory, Temperature Distribution, X Ray Spectra

Scientific paper

Results are presented from two-dimensional numerical hydrodynamical calculations of the thermal instability in cooling flows in a Cartesian coordinate system. The calculations were conducted to study the evolution of the infalling perturbation in the nonlinear stage. Results on the formation of vortices in the infalling perturbation are given for two cases: the formation of vortices in both side parts of the perturbation by the nonlinear effect and formation of the vortex after the perturbation cools, forming a low-temperature high-density cold gas sheet.

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