H I in barred spiral galaxies. II. NGC 1097

Journal Article · Sat Jul 01 00:00:00 EDT 1989 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/167574· OSTI ID:5595112

Ondrechen, M P; Van Der Hulst, J M; Hummel, E ^[1]

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1. Minnesota Univ., Minneapolis (USA)

H I observations of the southern barred spiral galaxy NGC 1097 have been made with about 25 arcsec resolution. The H I is found in the prominent spiral arms and in the bar. Noncircular motions are clearly present in and around the bar and can be understood in terms of existing gas flow models. The spiral arms exhibit large streaming motions as found in galaxies with strong density waves. The outer regions, in particular to the northwest, are somewhat disturbed, most likely due to gravitational interaction with the small companion galaxy. 55 refs.

• OSTI ID: 5595112
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 342; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BASIC INTERACTIONS
CONFIGURATION
COSMIC RADIO SOURCES
ELECTROMAGNETIC RADIATION
FLUID FLOW
GALAXIES
GALAXY NUCLEI
GAS FLOW
GRAVITATION
GRAVITATIONAL INTERACTIONS
H1 REGIONS
INTERACTIONS
MATHEMATICAL MODELS
MORPHOLOGY
MOTION
RADIATIONS
RADIOWAVE RADIATION
ROTATION
SPIRAL CONFIGURATION