Galactic Kinematic Distances from Velocity Gradients

Details Galactic Kinematic Distances from Velocity Gradients Galactic Kinematic Distances from Velocity Gradients

Sep 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a...102...91r&link_type=abstract

Astronomy and Astrophysics, Vol.102, P. 91, 1981

Astronomy and Astrophysics

Astrophysics

4

Scientific paper

The slope dV/dl of the radial velocity of a feature close to the direction l = 0° or l = 180° is shown to be a good measure of the distance to the galactic centre. Neither the geometric shape of the feature nor variation of the galactic rotation velocity with affect this distance, only a possibly existing gradient of a galactic expansion (or contraction) velocity field dII/dl influences the result.

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