ZTF22abfjnpj: new SU UMa-type dwarf nova

Kyoto Univ. team and Moriyama-san reported the observations of ZTF22abfjnpj = AT 2022tru.
This object was discovered by ZTF on 7th Sep. with the outburst amplitude of 8 mag, 
and spectroscopically classified as a CV by Dr. Claudio Balcon.
https://www.wis-tns.org/object/2022tru

Our observation at Kyoto Univ. on 15th Sep. detected a 0.2-mag superhump with a period of ~0.056 d.
Therefore, ZTF22abfjnpj is likely a SU UMa-type dwarf nova, and also can be a WZ Sge-type dwarf nova based on its large outburst amplitude and short superhump period.

Time-resolved observations are encouraged to determine its superhump periods.

Best,
Yusuke



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京都大学大学院理学研究科宇宙物理学教室 D2
Kyoto University, Graduate School of Department of Astronomy, PhD student
反保 雄介 Yusuke TAMPO

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