- vsnet-chat - ooruri.kusastro.kyoto-u.ac.jp

[vsnet-chat 9372] Gaia23bno: most likely polar
by Taichi Kato 20 Apr '23

20 Apr '23

Gaia23bno: most likely polar ZTF time-resolved data (two nights) recorded large-amplitude (1.5 mag) modulations whose profile is consistent with a polar.

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[vsnet-chat 9371] Gaia23bol = NSV21928 (TerzV2223)
by Taichi Kato 19 Apr '23

19 Apr '23

Gaia23bol = NSV21928 (TerzV2223) http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia23bol/ Indeed eclipsing.

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[vsnet-chat 9370] VSOLJ variable star bulletin no.113
by meineko 16 Apr '23

16 Apr '23

No.113 2023 Apr. PDF MASTER OT J055845.55+391533.4: SU UMa star with a dip and long rebrightening Taichi Kato, Hiroshi Itoh, Tonny Vanmunster, Seiichiro Kiyota, Katsuaki Kubodera,Pavol A. Dubovsky, Igor Kudzej, Tomáš Medulka, Filipp D. Romanov and David J. Lane http://vsolj.cetus-net.org/bulletin.html Seiichiro Kiyota Japan

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[vsnet-chat 9369] VSOLJ bulletin No.112
by meineko 11 Apr '23

11 Apr '23

No.112 2023 Apr. CM Mic and other ER UMa stars showing standstills Taichi Kato and Naoto Kojiguchi http://vsolj.cetus-net.org/bulletin.html Seiichiro Kiyota VSOLJ

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[vsnet-chat 9368] ASASSN-19adf: SU UMa star
by Taichi Kato 01 Apr '23

01 Apr '23

ASASSN-19adf: SU UMa star ZTF time-resolved data recorded superhumps during the 2019 superoutburst. Superhump period = 0.05556(5) d (stage B). Tamas Tordai also reported single-night data which are consistent with this period.

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[vsnet-chat 9367] ASASSN-19lb: IW And star
by Taichi Kato 31 Mar '23

31 Mar '23

ASASSN-19lb: IW And star From ATLAS data. IW And state in 2023. Currently in standstill? following oscillation state.

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[vsnet-chat 9366] ASASSN-19bl: most likely AM CVn
by Taichi Kato 30 Mar '23

30 Mar '23

ASASSN-19bl: most likely AM CVn ATLAS+ZTF. Multiple rebrightenings on fading tail. Superoutbursts in 2019 Jan.-Feb. and 2022 Nov.

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[vsnet-chat 9365] ASASSN-13bs: not (yet) SU UMa star?
by Taichi Kato 30 Mar '23

30 Mar '23

ASASSN-13bs: not (yet) SU UMa star? On two occasions (2018 Aug. and 2021 Apr.) when T. Vanmunster reported superhumps, the corresponding outbursts have been confirmed to be short (ATLAS/ZTF). They were unlikely true superoutbursts. I changed UGSU to UG. No long outbursts have been recorded in these data.

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[vsnet-chat 9364] ASASSN-VJ065237.19+243622.3: IW And star, similar to BO Cet?
by Taichi Kato 29 Mar '23

29 Mar '23

ASASSN-VJ065237.19+243622.3: IW And star, similar to BO Cet? ATLAS+ASAS-SNL+ATLAS data. IW And state in 2016-2019. In 2021 Oct. - 2022 Apr., standstill - brightening - fading - cycles of outbursts - long, bright outburst in 2022 Apr. similar to BO Cet. Although the data were not sufficient, this outburst may have been a superoutburst. The object is bright (15-16 mag) and observations are encouraged.

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[vsnet-chat 9363] ASASSN-VJ154918.88-373558.2: IW And star
by Taichi Kato 28 Mar '23

28 Mar '23

ASASSN-VJ154918.88-373558.2: IW And star From ATLAS data. Typical IW And behavior.

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