340 citations · 976 across the 29 of their papers we have counts for
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astro-ph.HE2022★ 19 cited
Narrow Fe-K Reverberation Mapping Unveils the Deactivated Broad-Line Region in a Changing-Look Active Galactic Nucleus
Hirofumi Noda, Taisei Mineta, Takeo Minezaki +11
"Changing-look active galactic nuclei" (CLAGNs) are known to change their apparent types between types 1 and 2, usually accompanied by a drastic change in their luminosity on times…
astro-ph.HE2022★ 15 cited
X-ray and optical spectroscopic study of a gamma Cassiopeiae analog source pi Aquarii
Masahiro Tsujimoto, Takayuki Hayashi, Kumiko Morihana +1
Gamma Cas analog sources are a subset of Be stars that emit intense and hard X-ray emission. Two competing ideas for their X-ray production mechanism are (a) the magnetic activitie…