Kinematics and ionization of extended gas in active galaxies. V. The Seyfert galaxy NGC 5548

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

DOI:https://doi.org/10.1086/167331· OSTI ID:5856031

Wilson, A S; Wu, Xuening; Heckman, T M; Baldwin, J A; Balick, B

It is found that NGC 5548 contains a spatially extended high-excitation narrow-line region with line widths ranging between 500 and 100 km/s (FWHM). This nebulosity is elongated along the axis of the triple radio source. The peak of optical continuum light (nucleus) coincides with the peak of the forbidden O III 5007 A distribution. 64 refs.

• Research Organization: Maryland Univ., College Park (USA); Ohio State Univ., Columbus (USA); Washington Univ., Seattle (USA)
• OSTI ID: 5856031
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 339; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BALMER LINES
COSMIC GASES
COSMIC RADIO SOURCES
DISTRIBUTION
FLUIDS
GALAXIES
GALAXY NUCLEI
GASES
H2 REGIONS
IONIZATION
LINE WIDTHS
PARTICLE KINEMATICS
SEYFERT GALAXIES
SPATIAL DISTRIBUTION
SPECTROSCOPY