December 2022 - vsnet-campaign-dn - ooruri.kusastro.kyoto-u.ac.jp

[vsnet-campaign-dn 16729] ASASSN-14ff likely superoutburst
by Taichi Kato 11 Dec '22

11 Dec '22

ASASSN-14ff likely superoutburst Known SU UMa star. Rather frequent superoutbursts. YYYYMMDD(UT) mag observer 20221206.4829 <143c (Yutaka Maeda) 20221207.4844 <140c (Yutaka Maeda) 20221208.4790 <141c (Yutaka Maeda) 20221209.4996 147c (Yutaka Maeda) 20221209.4996 147c (Yutaka Maeda)

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[vsnet-campaign-dn 16728] ZTF19aadbtjp likely superoutburst
by Taichi Kato 11 Dec '22

11 Dec '22

ZTF19aadbtjp likely superoutburst Type from ZTF data. YYYYMMDD(UT) mag observer 20221201.3890 15.965zr (ZTF Alert DC mag (Masci+ 2019))

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[vsnet-campaign-dn 16727] ZTF22abteqxm rebrightening
by Taichi Kato 10 Dec '22

10 Dec '22

ZTF22abteqxm rebrightening As expected. Long rebrightening? YYYYMMDD(UT) mag observer 20221201.1529 18.921zr (ZTF Alert DC mag (Masci+ 2019)) 20221201.2202 19.080zg (ZTF Alert DC mag (Masci+ 2019)) 20221202.7061 <165C (Masayuki Moriyama) 20221205.4212 165:C (Masayuki Moriyama) 20221207.6248 <162C (Masayuki Moriyama) 20221208.5961 169C (Masayuki Moriyama)

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[vsnet-campaign-dn 16726] TCPJ04343348+0411387 another rebrightening
by Taichi Kato 10 Dec '22

10 Dec '22

TCPJ04343348+0411387 another rebrightening YYYYMMDD(UT) mag observer 20221130.2902 18.551zr (ZTF Alert DC mag (Masci+ 2019)) 20221130.3354 18.372zg (ZTF Alert DC mag (Masci+ 2019)) 20221201.1144 <189cG (Masao Funada)

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[vsnet-campaign-dn 16725] PS17eeh likely superoutburst
by Taichi Kato 10 Dec '22

10 Dec '22

PS17eeh likely superoutburst Type from ZTF data. YYYYMMDD(UT) mag observer 20221128.1043 16.843zr (ZTF Alert DC mag (Masci+ 2019)) 20221130.1150 17.097zg (ZTF Alert DC mag (Masci+ 2019)) 20221130.1592 16.683zr (ZTF Alert DC mag (Masci+ 2019)) 20221201.1360 17.202zr (ZTF Alert DC mag (Masci+ 2019))

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[vsnet-campaign-dn 16724] CSSJ213554.8+233643 likely superoutburst
by Taichi Kato 10 Dec '22

10 Dec '22

CSSJ213554.8+233643 likely superoutburst Type from ZTF data. YYYYMMDD(UT) mag observer 20221022.1544 19.926zr (ZTF Alert DC mag (Masci+ 2019)) 20221130.1112 16.030zg (ZTF Alert DC mag (Masci+ 2019)) 20221130.1451 16.361zr (ZTF Alert DC mag (Masci+ 2019))

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[vsnet-campaign-dn 16723] CRTSJ205252.3-061441 (AM CVn:) likely superoutburst continues
by Taichi Kato 10 Dec '22

10 Dec '22

CRTSJ205252.3-061441 (AM CVn:) likely superoutburst continues (Rebgihtening expected) YYYYMMDD(UT) mag observer 20221122.1094 17.418zg (ZTF Alert DC mag (Masci+ 2019)) 20221123.1041 17.646zg (ZTF Alert DC mag (Masci+ 2019)) 20221123.1331 17.851zr (ZTF Alert DC mag (Masci+ 2019)) 20221124.1084 17.682zg (ZTF Alert DC mag (Masci+ 2019)) 20221130.1276 18.529zr (ZTF Alert DC mag (Masci+ 2019)) 20221201.1463 18.402zr (ZTF Alert DC mag (Masci+ 2019))

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[vsnet-campaign-dn 16722] CRTSJ080853.7+355053 likely superoutburst continues
by Taichi Kato 09 Dec '22

09 Dec '22

CRTSJ080853.7+355053 likely superoutburst continues YYYYMMDD(UT) mag observer 20221026.4355 19.322zg (ZTF Alert DC mag (Masci+ 2019)) 20221026.4968 19.070zr (ZTF Alert DC mag (Masci+ 2019)) 20221105.4645 18.698zr (ZTF Alert DC mag (Masci+ 2019)) 20221118.4268 16.010zg (ZTF Alert DC mag (Masci+ 2019)) 20221118.4991 16.182zr (ZTF Alert DC mag (Masci+ 2019)) 20221120.3913 16.066zg (ZTF Alert DC mag (Masci+ 2019)) 20221121.8070 16.58C (Masayuki Moriyama) 20221126.8817 <163C (Masayuki Moriyama) 20221202.8351 170C (Masayuki Moriyama)

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[vsnet-campaign-dn 16721] ASASSN-20na outburst
by Taichi Kato 09 Dec '22

09 Dec '22

ASASSN-20na outburst Most likely SU UMa star from ZTF data (superoutburst + rebrightening in 2020 Sep.-Oct.). YYYYMMDD(UT) mag observer 20221117.517 <174C (Mitsutaka Hiraga) 20221130.1169 15.853zg (ZTF Alert DC mag (Masci+ 2019)) 20221130.1428 15.887zr (ZTF Alert DC mag (Masci+ 2019))

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[vsnet-campaign-dn 16720] Re: DDE 35: more likely a polar
by Taichi Kato 09 Dec '22

09 Dec '22

Re: DDE 35: more likely a polar E. Pavlenko has advised that this object is too blue for a polar. The data by Crimean Astrophys. Obs. team in 2020 showed flickering, but no indication of stable superhumps nor orbital variation. Although a period of 0.20976(3) d was suspected from CrAO observations (by my analysis), this period was not detected in the ZTF data. This object indeed looks like a CV with high/low states, but is certainly neither an SU UMa nor a polar. This object is currently in high state and would be an easy target for spectroscopy to determine the orbital period.

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