[vsnet-outburst 27089] ASASSN-21fr: new SU UMa-type (& possible WZ Sge-type) dwarf nova

反保雄介 tampo at kusastro.kyoto-u.ac.jp
Thu Apr 22 04:28:45 JST 2021


ASASSN-21fr: new SU UMa-type (& possible WZ Sge-type) dwarf nova

Kyoto Univ. Obs., Tonny Vanmunster, and Tamás Tordai have reported
time-resolved observations of ASASSN-21fr.
Our observations on 21st April detected ordinary superhumps with the
amplitude of ~0.2 mag and the period of ~0.055 d, confirming ASASSN-21fr as
a SU UMa-type dwarf nova.

Moreover, as ASASSN-21fr was found on 13th April but no clear moderations
were observed until today,  ASASSN-21fr is likely a low-inclination WZ
Sge-type dwarf nova.

Time-resolved observations are encouraged to establish the superhump period.

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 D1
Kyoto University, Graduate School of Department of Astronomy, PhD candidate
反保 雄介 Yusuke TAMPO
MAIL: tampo at kusastro.kyoto-u.ac.jp

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