Two-dimensional visualization of the kinematic structure of the spiral galaxy M 81

Details Two-dimensional visualization of the kinematic structure of the spiral galaxy M 81 Two-dimensional visualization of the kinematic structure of the spiral galaxy M 81

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990kfnt....6...36i&link_type=abstract

Kinematika i Fizika Nebesnykh Tel (ISSN 0233-7665), vol. 6, Sept.-Oct. 1990, p. 36-45. In Russian.

Physics

Disk Galaxies, Galactic Structure, H I Regions, H Ii Regions, Spiral Galaxies, Density Distribution, Galactic Nuclei, Neutral Gases, Radial Velocity

Scientific paper

A technique for visualizing the large-scale of a galaxy is described which is based on the distribution of disk regions having systematic wave motions of neutral hydrogen. The distribution of regions observed in the M 81 galactic plane shows a large-scale structure which can be explained by a spiral model with variable pitch angle. The visualized large-scale kinematic structure agrees with the spiral structure of H II regions as well as with the H I density distribution.

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