4 papers · 1 filter
The optical emission line spectrum of Mark 110
M. -P. Veron-Cetty, P. Veron, M. Joly +1
We analyse in detail the rich emission line spectrum of Mark 110 to determine the physical conditions in the nucleus of this object, a peculiar NLS1 without any detectable Fe II em…
The emission-line spectrum of KUG 1031+398 and the Intermediate Line Region
A. C. Goncalves, P. Veron, M. -P. Veron-Cetty
We present results based on the analysis of optical spectra of KUG 1031+398, a Narrow Line Seyfert 1 (NLS1) galaxy for which Mason et al. (1996) reported evidence for a line-emitti…
The emission-line spectrum of KUG 1031+398 and the Intermediate Line Region controversy
A. C. Goncalves, P. Veron, M. -P. Veron-Cetty
We present results based on the analysis of optical spectra of the Narrow-Line Seyfert 1 (NLS1) galaxy KUG 1031+398, for which evidence was reported of a line-emitting region "inte…
NGC 5252 - a Liner undercover
A. C. Goncalves, P. Veron, M. -P. Veron-Cetty
Ground based long slit spectroscopic observations of the nuclear region of NGC 5252, and Hubble Space Telescope (HST) Faint Object Spectrograph (FOS) spectra of the nucleus and two…