March 2023 - vsnet-chat - ooruri.kusastro.kyoto-u.ac.jp

[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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[vsnet-chat 9362] ASASSN-VJ125507.89-504220.4: IW And star
by Taichi Kato 28 Mar '23

28 Mar '23

ASASSN-VJ125507.89-504220.4: IW And star From ATLAS data. Typical IW And behavior. Now in standstill.

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[vsnet-chat 9361] ASASSN-VJ053944.97-172403.4: polar
by Taichi Kato 28 Mar '23

28 Mar '23

ASASSN-VJ053944.97-172403.4: polar From ATLAS data. High and low states. Porb=0.0842099 d (two peaks per orbit; amplitude 1.2 mag).

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[vsnet-chat 9360] ASASSN-VJ051300.04-252323.1: polar
by Taichi Kato 28 Mar '23

28 Mar '23

ASASSN-VJ051300.04-252323.1: polar From ATLAS data. High and low states. Porb=0.0693660 d (single peak per orbit).

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[vsnet-chat 9359] ASASSN-VJ054854.06-222525.9: IW And star
by Taichi Kato 28 Mar '23

28 Mar '23

ASASSN-VJ054854.06-222525.9: IW And star ATLAS data. IW And state in 2019. Currently low-amplitude dwarf nova state.

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[vsnet-chat 9358] ASASSN-VJ063156.86-300422.4: dwarf nova
by Taichi Kato 28 Mar '23

28 Mar '23

ASASSN-VJ063156.86-300422.4: dwarf nova ATLAS data. Peak 15.4. Outbursts not so frequent (several per year). Subtype unknown.

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vsnet-chat March 2023