Angular momentum coupling in differentially rotating galactic systems

Details Angular momentum coupling in differentially rotating galactic systems Angular momentum coupling in differentially rotating galactic systems

Jan 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981ap%26ss..74..207e&link_type=abstract

Astrophysics and Space Science, vol. 74, no. 1, Jan. 1981, p. 207-210.

Astronomy and Astrophysics

Astrophysics

2

Angular Momentum, Celestial Mechanics, Galactic Rotation, Differential Equations, Equations Of Motion, Oscillations

Scientific paper

The equations of motion are derived for a differentially rotating system, and the paper demonstrates the existence of a force term due to coupling of the angular momentum with the gradient of the angular frequency. Translation of the system of reference to the Local Standard of Rest (LSR) shows that the LSR executes a radial oscillatory motion as a necessary consequence of the coupling mentioned above. This mechanism could well provide the theoretical background for expanding galaxies without resorting to a violent explosion in their center - a mechanism for which the evidence is rather scanty.

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