Showing 1–18 of 18 results
/ Date/ Name
Oct 15, 2009Long-term variability of the optical spectra of NGC 4151: II. Evolution of the broad Ha and Hb emission-line profilesJun 22, 2001Intermediate resolution H-beta spectroscopy and photometric monitoring of 3C 390.3 I. Further evidence of a nuclear accretion diskNov 23, 2005Probing the physical properties of the NGC 5548 Broad Line Region using Balmer linesAug 19, 2009Long term variability of the Broad Emission Line profiles in AGNMay 11, 2004Profile variability of the H-alpha and H-beta broad emission lines in NGC5548Aug 29, 2014Spectral optical monitoring of the double peaked emission line AGN Arp 102B: II. Variability of the broad line propertiesJan 5, 2017Long-term optical spectral monitoring of NGC 7469Aug 21, 1998Steps Toward Determination of the Size and Structure of the Broad-Line Region in Active Galactic Nuclei. XV. Long-Term Optical Monitoring of NGC 5548Jul 7, 2012Spectral Optical Monitoring of the Narrow Line Seyfert 1 galaxy Ark 564Apr 11, 2001A Spectroscopic and Photometric Study of Short-Timescale Variability in NGC5548Mar 1, 2016Polarization angle swings in blazars: The case of 3C 279Nov 13, 2013Analyzing polarization swings in 3C 279Aug 19, 2009Magnetic Field Measurement in Black Hole X-Ray Binary Cygnus X-1Jan 25, 2011Spectral optical monitoring of 3C 390.3 in 1995-2007: II. Variability of the spectral line parametersApr 6, 2008Long-term variability of the optical spectra of NGC 4151: I. Light curves and flux correlationsFeb 28, 2019Long-term optical spectral monitoring of a changing-look AGN NGC 3516 I: Continuum and broad-line flux variabilityAug 11, 2013Spectral optical monitoring of a double-peaked emission line AGN Arp 102B: I. Variability of spectral lines and continuumMar 10, 2010Spectral optical monitoring of 3C390.3 in 1995-2007: I. Light curves and flux variation of the continuum and broad lines