High-resolution neutral hydrogen observations - the barred spiral galaxy NGC 1300

Journal Article · Wed Feb 01 04:00:00 EST 1989 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/167097· OSTI ID:6199878

England, M N

Observations of the barred spiral galaxy NGC 1300 are reported and compared with theoretical models. Strong spiral structure is seen in the H I gas distribution. These neutral hydrogen arms correspond very well with the optical arms and with H II regions. The central region of the galaxy is gas-poor. This region is approximately the one occupied by the bar, suggesting a dynamical origin for the lack of gas. Analysis of the velocity field yields a systematic velocity of 1575.0 km/s, a position angle for the line of nodes of - 85.5 deg, and an inclination of 50.2 deg. The rotation curve derived from this velocity field rises to a maximum of 185 km/s and then drops slowly out to a distance of 3.2 arcmin. No evidence is seen for a truncation signature in the rotation curve. Simple mass models yielded a mass of 4.9 x 10 to the 10th solar mass for the total galaxy mass. 31 references.

• Research Organization: Florida Univ., Gainesville (USA)
• OSTI ID: 6199878
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 337; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COMPARATIVE EVALUATIONS
CONFIGURATION
COSMIC RADIO SOURCES
DISTRIBUTION
ELEMENTS
GALAXIES
GALAXY NUCLEI
H1 REGIONS
H2 REGIONS
HYDROGEN
MAPS
MASS
MORPHOLOGY
MOTION
NONMETALS
ORIGIN
RADIO GALAXIES
ROTATION
SPATIAL DISTRIBUTION
SPIRAL CONFIGURATION