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Continuum reverberation mapping of the quasar PG 2130+099
C. Fian, D. Chelouche, S. Kaspi +3
We present the results of an intensive six-month optical continuum reverberation mapping campaign of the Seyfert 1 galaxy PG 2130+099 at redshift z=0.063. The ground-based photomet…
The Great Slump: Mrk926 reveals discrete and varying Balmer line satellite components during a drastic phase of decline
Wolfram Kollatschny, Martin W. Ochmann, Shai Kaspi +9
Mrk926 is known to be a highly variable AGN with very broad line profiles. We studied the continuum and line profile variations of this object with high temporal resolution in orde…
Revealing the structure of the lensed quasar Q 0957+561: I. Accretion disk size
C. Fian, E. Mediavilla, J. Jiménez-Vicente +6
We aim to use signatures of microlensing induced by stars in the foreground lens galaxy to infer the size of the accretion disk in the gravitationally lensed quasar Q 0957+561. The…
Revealing the structure of the lensed quasar Q 0957+561: III. SMBH mass via gravitational redshift
C. Fian, E. Mediavilla, J. Jiménez-Vicente +4
We intend to use the impact of microlensing on the Fe III emission line blend along with a measure of its gravitational redshift to estimate the mass of the quasar's central superm…
Microlensing of the broad emission lines in 27 gravitationally lensed quasars. Broad line region structure and kinematics
C. Fian, E. Mediavilla, V. Motta +4
We aim to study the structure and kinematics of the broad line region (BLR) of a sample of 27 gravitationally lensed quasars with up to five different epochs of observation. This s…
AGN STORM 2: I. First results: A Change in the Weather of Mrk 817
Erin Kara, Missagh Mehdipour, Gerard A. Kriss +69
We present the first results from the ongoing, intensive, multi-wavelength monitoring program of the luminous Seyfert 1 galaxy Mrk 817. While this AGN was, in part, selected for it…