194 citations · 3.1k across the 179 of their papers we have counts for
17 papers · 1 filter
SDSS J183131.63+420220.2: AM CVn star showing ER UMa-type behavior and long standstill
Taichi Kato
SDSS J183131.63+420220.2 is an AM CVn-type cataclysmic variable. Using Asteroid Terrestrial-impact Last Alert System (ATLAS) and Zwicky Transient Facility (ZTF) data, I found that…
ASASSN-22ak: La Belle au bois dormant in a hydrogen-depleted dwarf nova?
Taichi Kato, Franz-Josef Hambsch, Berto Monard +1
ASASSN-22ak is a transient discovered by the All-Sky Automated Survey for Supernovae and by Gaia in 2022 January. Although this object had been in deep quiescence at least for seve…
Long-lasting high state of the high-field polar AR UMa
Taichi Kato
Using ASAS-SN Sky Patrol Photometic Database and Asteroid Terrestrial-impact Last Alert System (ATLAS) data, I found that the high-field polar AR UMa entered a long-lasting high st…
Low state in the post-nova V1315 Aql
Taichi Kato
Using Asteroid Terrestrial-impact Last Alert System (ATLAS) and Zwicky Transient Facility (ZTF) data, I found that the SW Sex star V1315 Aql entered a low state early in 2023. As f…
Eclipse observations of V838 Her (Nova Her 1991) during nova eruption
Taichi Kato
I observed the very fast nova V838 Her (Nova Her 1991, optical peak at 5-5.4 mag) during the fading phase of the nova eruption in 1991. I detected eclipses, for the first time in t…
Double outbursts in V544 Her and ASASSN-19yt
Taichi Kato
In Kato et al. (2019, arXiv:1909.00910), I reported on a double outburst and rebrightenings in 2018 in V544 Her. Such a phenomenon is usually observed in WZ Sge stars which evolved…