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

[vsnet-newvar 9496] ASASSN-22nj: new SU UMa-type dwarf nova
by Taichi Kato 09 Nov '22

09 Nov '22

ASASSN-22nj: new SU UMa-type dwarf nova According to the most recent observations by the Kyoto U. team (Nov. 8), this object started to show superhumps with a period of 0.053 d (single-night baseline, amplitude 0.18 mag). Itoh-san also contributed in the earlier stage of the outburst.

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[vsnet-newvar 9495] MGAB-V233 likely superoutburst
by Taichi Kato 09 Nov '22

09 Nov '22

MGAB-V233 likely superoutburst ER UMa star. Duty cycle appears to be increasing recently. YYYYMMDD(UT) mag observer 20221012.7009 <169C (Masayuki Moriyama) 20221015.6871 154C (Masayuki Moriyama) 20221017.6898 <163C (Masayuki Moriyama) 20221022.7380 15.30C (Masayuki Moriyama) 20221027.6709 152C (Masayuki Moriyama) 20221029.6406 154C (Masayuki Moriyama) 20221030.6280 153C (Masayuki Moriyama) 20221104.6647 15.61C (Masayuki Moriyama) 20221106.6354 156C (Masayuki Moriyama)

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[vsnet-newvar 9494] Gaia17abv likely superoutburst
by Taichi Kato 08 Nov '22

08 Nov '22

Gaia17abv likely superoutburst Type from ZTF data. YYYYMMDD(UT) mag observer 20221029.1179 16.668zg (ZTF Alert DC mag (Masci+ 2019)) 20221029.1779 16.719zr (ZTF Alert DC mag (Masci+ 2019)) 20221029.1817 16.638zr (ZTF Alert DC mag (Masci+ 2019)) 20221106.1213 16.806zg (ZTF Alert DC mag (Masci+ 2019)) 20221106.1336 17.031zr (ZTF Alert DC mag (Masci+ 2019))

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[vsnet-newvar 9493] ASASSN-15pk: possible superoutburst
by Taichi Kato 08 Nov '22

08 Nov '22

ASASSN-15pk: possible superoutburst Known SU UMa star. YYYYMMDD(UT) mag observer 20221106.2645 15.937zg (ZTF Alert DC mag (Masci+ 2019)) 20221106.5070 16.313zr (ZTF Alert DC mag (Masci+ 2019))

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[vsnet-newvar 9492] ZTF18abpoeao: possible superoutburst
by Taichi Kato 08 Nov '22

08 Nov '22

ZTF18abpoeao: possible superoutburst Judged from rapid fading of short outbursts in ZTF data. YYYYMMDD(UT) mag observer 20221029.1300 15.640zg (ZTF Alert DC mag (Masci+ 2019)) 20221029.2401 15.876zr (ZTF Alert DC mag (Masci+ 2019)) 20221031.1223 16.100zr (ZTF Alert DC mag (Masci+ 2019)) 20221031.1653 16.114zg (ZTF Alert DC mag (Masci+ 2019))

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[vsnet-newvar 9491] TCPJ00280458+4232544: possible superoutburst (AM CVn?)
by Taichi Kato 08 Nov '22

08 Nov '22

TCPJ00280458+4232544: possible superoutburst (AM CVn?) Complex outburst in ZTF data in 2019 Sep.-Oct. (resembling an AM CVn-type superoutburst).. YYYYMMDD(UT) mag observer 20221027.2858 18.053zr (ZTF Alert DC mag (Masci+ 2019)) 20221027.2863 18.079zr (ZTF Alert DC mag (Masci+ 2019)) 20221027.3240 17.715zg (ZTF Alert DC mag (Masci+ 2019)) 20221027.3245 17.787zg (ZTF Alert DC mag (Masci+ 2019)) 20221029.2795 18.378zr (ZTF Alert DC mag (Masci+ 2019)) 20221029.2809 18.382zr (ZTF Alert DC mag (Masci+ 2019)) 20221029.3309 18.053zg (ZTF Alert DC mag (Masci+ 2019)) 20221029.3498 18.024zg (ZTF Alert DC mag (Masci+ 2019))

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[vsnet-newvar 9490] CRTS J231552.3+271037 possible superoutburst
by Taichi Kato 08 Nov '22

08 Nov '22

CRTS J231552.3+271037 possible superoutburst Suspected type from ZTF data (based on the presence of a few short outbursts). YYYYMMDD(UT) mag observer 20221019.1704 19.282zr (ZTF Alert DC mag (Masci+ 2019)) 20221021.1533 19.051zr (ZTF Alert DC mag (Masci+ 2019)) 20221027.2657 17.667zr (ZTF Alert DC mag (Masci+ 2019)) 20221027.3003 17.548zg (ZTF Alert DC mag (Masci+ 2019)) 20221029.2562 15.604zr (ZTF Alert DC mag (Masci+ 2019)) 20221029.3318 15.362zg (ZTF Alert DC mag (Masci+ 2019)) 20221031.1314 15.052zr (ZTF Alert DC mag (Masci+ 2019))

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[vsnet-newvar 9489] ASASSN-22nf long outburst with precursor?
by Taichi Kato 08 Nov '22

08 Nov '22

ASASSN-22nf long outburst with precursor? SU UMa star? YYYYMMDD(UT) mag observer 20221022.1296 16.228zr (ZTF Alert DC mag (Masci+ 2019)) 20221022.1725 16.574zg (ZTF Alert DC mag (Masci+ 2019)) 20221025.2254 18.632zg (ZTF Alert DC mag (Masci+ 2019)) 20221027.1250 17.164zr (ZTF Alert DC mag (Masci+ 2019)) 20221027.1537 17.606zg (ZTF Alert DC mag (Masci+ 2019)) 20221029.1745 16.261zr (ZTF Alert DC mag (Masci+ 2019)) 20221031.1114 16.307zr (ZTF Alert DC mag (Masci+ 2019)) 20221031.1625 16.820zg (ZTF Alert DC mag (Masci+ 2019)) 20221105.1120 16.532zr (ZTF Alert DC mag (Masci+ 2019)) 20221105.1558 17.039zg (ZTF Alert DC mag (Masci+ 2019))

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[vsnet-newvar 9488] ASASSN-14jx long outburst
by Taichi Kato 08 Nov '22

08 Nov '22

ASASSN-14jx long outburst The long outburst in 2021 June had a separate precursor. Might be an SU UMa star. YYYYMMDD(UT) mag observer 20221015.5012 <155c (Yutaka Maeda) 20221019.1664 18.654zr (ZTF Alert DC mag (Masci+ 2019)) 20221019.4683 <163c (Yutaka Maeda) 20221021.1986 18.632zg (ZTF Alert DC mag (Masci+ 2019)) 20221024.4708 <158c (Yutaka Maeda) 20221025.1276 16.324zr (ZTF Alert DC mag (Masci+ 2019)) 20221025.2278 16.040zg (ZTF Alert DC mag (Masci+ 2019)) 20221025.5002 <160c (Yutaka Maeda) 20221027.1409 16.076zr (ZTF Alert DC mag (Masci+ 2019)) 20221027.1997 15.888zg (ZTF Alert DC mag (Masci+ 2019)) 20221028.5051 <154c (Yutaka Maeda) 20221029.1397 16.171zg (ZTF Alert DC mag (Masci+ 2019)) 20221029.2396 16.348zr (ZTF Alert DC mag (Masci+ 2019)) 20221031.1414 16.655zr (ZTF Alert DC mag (Masci+ 2019)) 20221102.4884 <158c (Yutaka Maeda) 20221103.4582 <160c (Yutaka Maeda) 20221104.4906 <158c (Yutaka Maeda) 20221105.1249 16.907zr (ZTF Alert DC mag (Masci+ 2019)) 20221105.1728 16.858zg (ZTF Alert DC mag (Masci+ 2019)) 20221105.4862 <150c (Yutaka Maeda)

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[vsnet-newvar 9487] MASTER OT J001204.00-412337.4 eighth rebrightening
by Taichi Kato 08 Nov '22

08 Nov '22

MASTER OT J001204.00-412337.4 eighth rebrightening According to the data by Josch Hambsch, this object showed another rebrightening on Oct. 31-Nov. 1. The interval between the 7th and 8th rebrightenings twice longer than before.

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