Magnetic braking of the rotation of molecular cloud cores

Details Magnetic braking of the rotation of molecular cloud cores Magnetic braking of the rotation of molecular cloud cores

Dec 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.241..495n&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 241, Dec. 1, 1989, p. 495-505.

Astronomy and Astrophysics

Astronomy

9

Interstellar Matter, Magnetic Field Configurations, Magnetohydrodynamic Waves, Molecular Clouds, Rotating Matter, Angular Momentum, Angular Velocity, Axes Of Rotation, Breaking

Scientific paper

The magnetic braking of the core of an axisymmetric cloud whose rotation axis is parallel to the mean direction of the magnetic field is studied. It is assumed that the core is a rigid rotator and the ambient medium has a density distribution proportional to r exp -n, where r is the distance from the cloud center and n is a constant between 0 and 4. For n = 4, the angular velocity of rotation of the cloud core, Omega(cc), decreases exponentially with time. For n between 0 and 4, Omega(cc) has two components.

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