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

[vsnet-newvar 9935] ASASSN-18acd likely superoutburst
by Taichi Kato 30 Mar '23

30 Mar '23

ASASSN-18acd likely superoutburst Type from ZTF data. YYYYMMDD(UT) mag observer 20230313.5258 14.969zr (ZTF Alert DC mag (Masci+ 2019)) 20230313.5283 14.973zr (ZTF Alert DC mag (Masci+ 2019)) 20230313.5308 14.991zr (ZTF Alert DC mag (Masci+ 2019)) 20230313.5333 15.004zr (ZTF Alert DC mag (Masci+ 2019)) 20230317.5208 15.337zr (ZTF Alert DC mag (Masci+ 2019)) 20230317.5234 15.273zr (ZTF Alert DC mag (Masci+ 2019)) 20230317.5259 15.242zr (ZTF Alert DC mag (Masci+ 2019)) 20230317.5284 15.161zr (ZTF Alert DC mag (Masci+ 2019)) 20230317.5310 15.156zr (ZTF Alert DC mag (Masci+ 2019)) 20230318.5202 15.505zr (ZTF Alert DC mag (Masci+ 2019)) 20230318.5227 15.530zr (ZTF Alert DC mag (Masci+ 2019)) 20230318.5253 15.528zr (ZTF Alert DC mag (Masci+ 2019)) 20230318.5278 15.508zr (ZTF Alert DC mag (Masci+ 2019)) 20230318.5304 15.520zr (ZTF Alert DC mag (Masci+ 2019)) 20230327.8535 162:C (Masayuki Moriyama) 20230329.8061 166:C (Masayuki Moriyama)

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[vsnet-newvar 9934] 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-newvar 9933] SDSSJ100515.39+191108.0 superoutburst
by Taichi Kato 29 Mar '23

29 Mar '23

SDSSJ100515.39+191108.0 superoutburst YYYYMMDD(UT) mag observer 20230320.1142 <187C (Masao Funada) 20230321.953 <17.30C (Gary Poyner) 20230321.9542 <185C (Masao Funada) 20230326.6222 <149c (Yutaka Maeda) 20230327.6384 125cG (Yutaka Maeda)

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[vsnet-newvar 9932] MASTER OT J174816.22+501723.3 superhumps
by Taichi Kato 29 Mar '23

29 Mar '23

MASTER OT J174816.22+501723.3 superhumps Tamas Tordai's observations indeed recorded superhumps (Mar. 27-28).

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[vsnet-newvar 9931] 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-newvar 9930] 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-newvar 9929] 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-newvar 9928] 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-newvar 9927] 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-newvar 9926] 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-newvar March 2023