46 citations · 90 across the 11 of their papers we have counts for
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astro-ph.GA2026
A Changing-Look Seyfert Discovered by eROSITA Reveals a Two-Component Broad-Line Region
Alex Markowitz, Mirko Krumpe, David Homan +12
Extreme sudden changes in the flow of accreting gas onto SMBHs manifest themselves via large-amplitude continuum variability and changes to broad Balmer emission profiles, driving…
astro-ph.GA2020★ 46 cited
The variable and non-variable X-ray absorbers in Compton-thin type-II Active Galactic Nuclei
Sibasish Laha, Alex G. Markowitz, Mirko Krumpe +3
We have conducted an extensive X-ray spectral variability study of a sample of 20 Compton-thin type II galaxies using broad band spectra from XMM-Newton, Chandra, and Suzaku. The a…