Warped and tilted galactic discs

Details Warped and tilted galactic discs Warped and tilted galactic discs

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.237..785o&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 237, April 1, 1989, p. 785-798.

Astronomy and Astrophysics

Astronomy

84

Galactic Structure, Milky Way Galaxy, Spiral Galaxies, Accretion Disks, Angular Momentum, Density Distribution

Scientific paper

The reorientation of the net angular momentum vectors of disk galaxies expected during cosmic infall onto galaxies is modeled with a steadily sewing axisymmetric potential. Each annulus of the disk responds to the slewing by tipping about a line in the plane of the disk. It is shown that the tipping angle is a steep function of the radius where the disk surface density is small. It is suggested that this effect is responsible for the outer warp and nuclear inclination of the Galaxy.

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