Optical studies of H''I-rich southern galaxies. II. The low-visibility spiral NGC 1079)/sup a/

Journal Article · Sat Jan 01 04:00:00 EST 1983 · Astron. J.; (United States)

OSTI ID:6527207

Gallagher, J S; Bushouse, H

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. We 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.

• Research Organization: Department of Astronomy, University of Illinois, Urbana, Illinois 61801
• OSTI ID: 6527207
• Journal Information: Astron. J.; (United States), Journal Name: Astron. J.; (United States) Vol. 88:1; ISSN ANJOA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CONFIGURATION
COSMIC GASES
COSMIC RADIO SOURCES
ELECTROMAGNETIC RADIATION
FLUIDS
GALAXIES
GASES
H1 REGIONS
LUMINOSITY
MASS
MORPHOLOGY
MOTION
OPTICAL PROPERTIES
PHOTOGRAPHY
PHYSICAL PROPERTIES
RADIATIONS
ROTATION
SPIRAL CONFIGURATION
VELOCITY
VISIBLE RADIATION