826 citations · 2.8k across the 33 of their papers we have counts for
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astro-ph.GA2017★ 28 cited
The Close AGN Reference Survey (CARS): Mrk 1018 halts dimming and experiences strong short-term variability
M. Krumpe, B. Husemann, G. R. Tremblay +12
After changing optical AGN type from 1.9 to 1 in 1984, the AGN Mrk 1018 recently reverted back to its type 1.9 state. Our ongoing monitoring now reveals that the AGN has halted its…
astro-ph.GA2017★ 36 cited
Bright X-ray flares from Sgr A*
G. D. Karssen, M. Bursa, A. Eckart +4
We address a question whether the observed light curves of X-ray flares originating deep in galactic cores can give us independent constraints on the mass of the central supermassi…
astro-ph.HE2017
Plunging neutron stars as origin of organised magnetic field in galactic nuclei
V. Karas, O. Kopacek, D. Kunneriath +4
Black holes cannot support their own internal magnetic field like, for example, compact stars can. Despite this fact observations indicate that event horizons of supermassive black…