Abstract
view Abstract Citations (31) References (13) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Disk structure and nuclear activity in Seyfert 1 galaxies Su, H. J. ; Simkin, S. M. Abstract The relationships between Balmer line width, inclination to the line of sight, and morphological class for 38 Seyfert 1 galaxies have been investigated. Only one set of parameters shows a strong correlation: the width of the Balmer lines in Seyfert 1 galaxies is related to the morphological class (i.e., disk structure) of these objects. This relationship seems to show continuity between spiral Seyfert galaxies and extended, broad-line radio galaxies ('N' radio galaxies), which suggests that some Seyfert galaxies may evolve into extended radio sources. The random relationship between the width of the Balmer lines and inclination to the line of sight of Seyfert galaxies suggests that the broadening mechanism for these lines is spherically symmetric. Publication: The Astrophysical Journal Pub Date: May 1980 DOI: 10.1086/183244 Bibcode: 1980ApJ...238L...1S Keywords: Balmer Series; Disk Galaxies; Galactic Structure; Radio Galaxies; Seyfert Galaxies; Spectral Line Width; Classifications; Interstellar Extinction; Luminosity; Morphology; Nuclear Reactions; Spiral Galaxies; X Ray Spectra; Astrophysics full text sources ADS | data products NED (38)
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