549 citations · 7.2k across the 125 of their papers we have counts for
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astro-ph.HE2021★ 79 cited
The Unanticipated Phenomenology of the Blazar PKS~2131021: A Unique Super-Massive Black Hole Binary Candidate
S. O'Neill, S. Kiehlmann, A. C. S. Readhead +24
Most large galaxies host supermassive black holes in their nuclei and are subject to mergers, which can produce a supermassive black hole binary (SMBHB), and hence periodic signatu…
astro-ph.HE2021
Southern African Large Telescope Spectroscopy of BL Lacs for the CTA project
E. Kasai, P. Goldoni, M. Backes +14
In the last two decades, very-high-energy gamma-ray astronomy has reached maturity: over 200 sources have been detected, both Galactic and extragalactic, by ground-based experiment…