H I studies of the Sculptor group galaxies. VI - NGC 300

Details H I studies of the Sculptor group galaxies. VI - NGC 300 H I studies of the Sculptor group galaxies. VI - NGC 300

Nov 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990aj....100.1468p&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 100, Nov. 1990, p. 1468-1476, 1719, 1720. Research supported by NSERC and Ministere

Astronomy and Astrophysics

Astronomy

69

Galactic Clusters, H I Regions, Mass Distribution, Spiral Galaxies, Dark Matter, Galactic Structure, Intergalactic Media, Mass To Light Ratios, Very Large Array (Vla)

Scientific paper

A study of the kinematics of the Sculptor group galaxy NGC 300 is presented. VLA observations of the H I line show a dramatically warped H I disk just outside the optical disk. A two-component mass model, fitted to the data, gives a total mass of 2.4 x 10 to the 10th solar masses at the last observed point of the rotation curve. This value implies an (M/L(B)global about 11 solar masses/solar luminosity for the galaxy which is compared with the total dynamical (M/L(B)dyn of the group. This comparison suggests that dark matter is probably more concentrated around the galaxies of the group than uniformly distributed in the intergalactic medium.

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