Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983aj.....88...55g&link_type=abstract
Astronomical Journal, vol. 88, Jan. 1983, p. 55-61. Research supported by the University of Illinois
Astronomy and Astrophysics
Astronomy
10
Barred Galaxies, Hydrogen, Luminosity, Southern Sky, Spiral Galaxies, Visual Observation, Abundance, Astronomical Spectroscopy, Galactic Evolution, Galactic Structure, Radii, Surface Properties
Scientific paper
NGC 1079 is an unusual early-type barred spiral galaxy. It differs from normal systems in three aspects: (1) its H I content per unit blue luminosity is three times too high, (2) the rotation velocity and thus the inferred mass are approximately twice as large as in normal galaxies with similar luminosities, and (3) the optical structure is peculiar with low surface brightness spiral arms occurring exterior to an old-population-dominated, high surface brightness center. The authors suggest that these features can be understood if NGC 1079 is a galaxy which is deficient in luminous matter (stars and gas) relative to its dynamical mass within the Holmberg radius.
Bushouse Howard
Gallagher Jay S.
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