High-resolution neutral hydrogen observations of NGC 4258

Details High-resolution neutral hydrogen observations of NGC 4258 High-resolution neutral hydrogen observations of NGC 4258

Sep 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975a%26a....42..433v&link_type=abstract

Astronomy and Astrophysics, vol. 42, no. 3, Sept. 1975, p. 433-439. Research supported by the Nederlandse Organisatie voor Zuiv

Astronomy and Astrophysics

Astrophysics

39

Galactic Structure, H Lines, Radio Galaxies, Spiral Galaxies, Astronomical Models, Galactic Radiation, Microwave Emission

Scientific paper

Preliminary results of 21-cm line observations of NGC 4258 obtained with the Westerbork Synthesis Radio Telescope are presented. Disturbances in both the H I density distribution and the velocity field in the neighborhood of the anomalous arms tend to support the expulsion model of Van der Kruit et al. (1972). Outside the region of the anomalous arms, the galaxy behaves like a normal spiral galaxy.

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