Publications (16)
RX J1643.7+3402 : a new bright cataclysmic variable
A. M. Mickaelian, S. K. Balayan, S. A. Ilovaisky +3
We report the discovery of a new bright (V12.6) cataclysmic variable star identified with the ROSAT X-ray source RX J1643.7+3402. Spectroscopic and photometric observations s…
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…
Miscellaneous observations of active galactic nuclei. II
A. C. Goncalves, P. Veron, M. -P. Veron-Cetty
We observed 37 AGN candidates and classified them on the basis of their spectroscopic properties; three are confirmed QSOs, one is a BL Lac object, nine are Seyfert 1 galaxies, fou…
A spectrophotometric atlas of Narrow-Line Seyfert 1 galaxies
M. -P. Veron-Cetty, P. Veron, A. C. Goncalves
We have compiled a list of 83 objects classified as Narrow-Line Seyfert 1 galaxies (NLS1s) or known to have a broad Balmer component narrower than 2000 km/s. Out of these, 19 turne…
On the nature of the FBS blue stellar objects and the completeness of the bright quasar survey
M. A. Mickaelian, A. C. Goncalves, M. -P. Veron-Cetty +1
The second part of the First Byurakan Survey is aimed at detecting all bright (B<16.5) UV-excess starlike objects in a large area of the sky. By comparison with other major surveys…
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…
AGNs with composite spectra II. Additional data
A. C. Goncalves, M. -P. Veron-Cetty, P. Veron
In a previous paper (Veron et al. 1997) we presented medium resolution (3.4 A FWHM) spectroscopic observations of 15 "transition objects", selected for having an ambiguous location…
On the nature of the FBS blue stellar objects and the completeness of the Bright Quasar Survey. II
A. M. Mickaelian, A. C. Goncalves, M. -P. Veron-Cetty +1
In Paper I (Mickaelian et al. 1999), we compared the surface density of QSOs in the Bright Quasar Survey (BQS) and in the First Byurakan Survey (FBS) and concluded that the complet…
The unusual emission line spectrum of IZw1
M. -P. Veron-Cetty, M. Joly, P. Veron
Most Seyfert 1s show strong Fe II lines in their spectrum having the velocity and width of the broad emission lines. To remove the Fe II contribution in these objects, an accurate…
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 spectrum of the strong Fe II emitter BAL Seyfert 1 galaxy IRAS 07598+6508
M. -P. Veron, M. Joly, P. Veron +3
The narrow-line Seyfert 1 galaxy IRAS 07598+6508 is known to be a stong Fe II emitter. The analysis of several high S/N ratio spectra shows that its spectrum is dominated by a rela…
Optically bright Active Galactic Nuclei in the ROSAT-Faint Source Catalogue
M. -P. Veron-Cetty, S. K. Balayan, A. M. Mickaelian +8
To build a large, optically bright, X-ray selected AGN sample we have correlated the ROSAT-FSC catalogue of X-ray sources with the USNO catalogue limited to objects brighter than O…
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…
The X-ray emission of the most luminous 3CR radio sources
M. Salvati, G. Risaliti, P. Veron +1
We investigate the X-ray properties of the most luminous radio sources in the 3CR catalogue, in order to assess if they are similar to the most luminous radio quiet quasars, for in…
The "red shelf" of the Hb line in the Seyfert 1 galaxies RXS J01177+3637 and HS 0328+05
P. Veron, A. C. Goncalves, M. -P. Veron-Cetty
A few Seyfert 1s have a Hb profile with a red wing usually called the "red shelf". The most popular interpretation of this feature is that it is due to broad redshifted lines of Hb…
On the QSO content of the First Byurakan Survey and the completeness of the Palomar Green Survey
P. Veron, A. M. Mickaelian, A. C. Goncalves +1
The second part of the First Byurakan Survey is aimed at detecting all bright (B < 16.5) UV-excess starlike objects in a large area of the sky. By comparison with major X-ray and r…