We study dynamical collapse of isothermal magnetized clouds with two-dimensional axisymmetric numerical simulations. As a model of the cloud, we consider an innnitely long lamentary cloud with longitudinal magnetic eld. An initial model is constructed by adding an axisymmetric perturbation on an equilibrium model. Because of gravitational instability, it… (More)

a max denotes the wavelength of the fastest growing perturbation

Nakamura

a max denotes the wavelength of the fastest…

1993

b the mass-to--ux ratio at the center, normalized with its critical value of 1=(2G 0:5 )

b the mass-to--ux ratio at the center, normalized…

1978

Quart. J. R. A. S

L Mestel

Quart. J. R. A. S

1965

1 Excerpt

This preprint was prepared with the AAS L A T E X macros v4

This preprint was prepared with the AAS L A T E X…

denote the number of grid points in the r-and z-directions, respectively. d Mesh spacing in the r-direction at the initial state. e Mesh spacing in the z-direction at the initial state

denote the number of grid points in the r-and z…

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Cite this paper

@inproceedings{Nakamura2007GravitationalCO,
title={Gravitational Collapse of Isothermal Magnetized Clouds: Universality of Self-similar Collapse},
author={Fumitaka Nakamura and Tomoaki Matsumoto and Tomoyuki Hanawa and Kohji Tomisaka},
year={2007}
}

Fig. 2.| Time evolution of the central density and magnetic eld strength for model D1.Panel (b) is an enlargement of panel (a). The dotted lines denote c = 3:08(t0 t) 2 andBz; c = 3:23(t0 t) 1 in panel (b).