52 citations · 115 across the 7 of their papers we have counts for
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Broad-Line Region Characterization in Dozens of Active Galactic Nuclei Using Small-Aperture Telescopes
Catalina Sobrino Figaredo, Doron Chelouche, Martin Haas +9
We present the results of a nearly decade-long photometric reverberation mapping (PRM) survey of the H emission line in nearby () Seyfert-Galaxies u…
Dust Reverberation of 3C273: torus structure and lag -- luminosity relation
Catalina Sobrino Figaredo, Martin Haas, Michael Ramolla +7
We monitored the z=0.158 quasar 3C273 between 2015 and 2019 in the optical (BVrz) and near-infrared (JHK) with the aim to perform dust reverberation mapping. Accounting for host ga…
The broad line region and dust torus structure of the Seyfert 1 WPVS48
C. Sobrino Figaredo, F. Pozo Nuñez, M. Ramolla +5
Optical and near-mid-infrared reverberation mapping data obtained at Universitätssternwarte Bochum in Chile and with the Spitzer Space Telescope allow us to explore the geometry of…
Simultaneous H alpha and dust reverberation mapping of 3C120: Testing the bowl-shaped torus geometry
Michael Ramolla, Martin Haas, Christian Westhues +8
At the Universitaetssternwarte Bochum near Cerro Armazones we have monitored the Seyfert-1 galaxy 3C 120 between September 2014 and March 2015 in BVRI and a narrow band filter cove…
Long-term optical, UV, and X-ray continuum variations in the changing-look AGN HE 1136-2304
M. Zetzl, W. Kollatschny, M. W. Ochmann +6
A strong outburst in the X-ray continuum and a change of its Seyfert spectral type was detected in HE 1136-2304 in 2014. The spectral type changed from nearly Seyfert 2 type (1.95)…