Gas velocity field in the central regions of NGC 23, NGC 1134 and NGC 4536

Details Gas velocity field in the central regions of NGC 23, NGC 1134 and NGC 4536 Gas velocity field in the central regions of NGC 23, NGC 1134 and NGC 4536

Sep 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pazh...17..771a&link_type=abstract

Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 17, Sept. 1991, p. 771-778. In Russian. In Russian. In Russian.

Astronomy and Astrophysics

Astronomy

Galactic Nuclei, Gas Dynamics, Radial Velocity, Spiral Galaxies, Velocity Measurement, Isophotes, Line Of Sight, Velocity Distribution

Scientific paper

New results are presented of gas line-of-sight velocity measurements in the central parts (r is less than 15 arcsec) of three spiral galaxies - NGC 23, 1134, and 4536 - with large line-of-sight velocity gradients in the nuclei. The proximity of the position angles of photometric and dynamical major axes provides evidence of gas motions in nuclear regions occurring in the plane of a stellar disk. An extended region of about 8 x 4 arcsec with abnormally low line-of-sight velocities is found in NGC 23.

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