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

[vsnet-campaign-dn 16529] ASASSN-20bb likely superoutburst
by Taichi Kato 07 Oct '22

07 Oct '22

ASASSN-20bb likely superoutburst Type from ZTF data. YYYYMMDD(UT) mag observer 20221004.4536 16.524zg (ZTF Alert DC mag (Masci+ 2019)) 20221004.4541 16.532zg (ZTF Alert DC mag (Masci+ 2019)) 20221004.4819 16.798zr (ZTF Alert DC mag (Masci+ 2019)) 20221004.4824 16.799zr (ZTF Alert DC mag (Masci+ 2019))

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[vsnet-campaign-dn 16528] PU Per superoutburst
by Taichi Kato 07 Oct '22

07 Oct '22

PU Per superoutburst YYYYMMDD(UT) mag observer 20221001.5848 <155c (Yutaka Maeda) 20221003.001 <156 (Gary Poyner) 20221003.6365 149cG (Yutaka Maeda) 20221003.958 152 (Gary Poyner)

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[vsnet-campaign-dn 16527] WX Cet started to show superhumps
by Taichi Kato 06 Oct '22

06 Oct '22

WX Cet started to show superhumps According to the most recent observations by Josch Hambsch, WX Cet started to show superhumps on Oct. 4 or 5. Itoh-san obtained long time-series data starting from the rising phase, but superhumps were not apparent up to Oct. 3.

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[vsnet-campaign-dn 16526] 1RXS J185310.0+594509 superoutburst
by Taichi Kato 06 Oct '22

06 Oct '22

1RXS J185310.0+594509 superoutburst YYYYMMDD(UT) mag observer 20220923.2220 18.685zg (ZTF Alert DC mag (Masci+ 2019)) 20220925.1568 18.605zg (ZTF Alert DC mag (Masci+ 2019)) 20220927.1984 18.451zg (ZTF Alert DC mag (Masci+ 2019)) 20220927.6203 <156C (Masayuki Moriyama) 20220929.1309 18.315zr (ZTF Alert DC mag (Masci+ 2019)) 20220929.1967 18.459zg (ZTF Alert DC mag (Masci+ 2019)) 20220929.494 172C (Mitsutaka Hiraga) 20220929.5232 <158c (Yutaka Maeda) 20220930.437 147C (Mitsutaka Hiraga) 20220930.6429 147C (Masayuki Moriyama) 20221001.6098 148C (Masayuki Moriyama) 20221003.485 155C (Mitsutaka Hiraga) 20221003.6404 152C (Masayuki Moriyama) 20221005.5012 153C (Masayuki Moriyama)

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[vsnet-campaign-dn 16525] SDSS J001153.08-064739.1 rare bright outburst
by Taichi Kato 06 Oct '22

06 Oct '22

SDSS J001153.08-064739.1 rare bright outburst Moriyama-san has pointed out that this object is undergoing a rare bright outburst. The orbital period is in the period gap and a superoutburst can be expected. https://ui.adsabs.harvard.edu/abs/2014ApJ...790...28R/abstract Using ZTF data, I obtained an orbital period of 0.1002809(1) d. The phased light curve show clear EW-like modulations with an amplitude of 0.25 mag. YYYYMMDD(UT) mag observer 20220703.4593 17.813zg (Zwicky Transient Facility (Masci et al., 2019)) 20220706.4376 17.765zg (Zwicky Transient Facility (Masci et al., 2019)) 20220917.3159 17.539zg (ZTF Alert DC mag (Masci+ 2019)) 20220929.2732 14.095zg (ZTF Alert DC mag (Masci+ 2019)) 20221003.6523 13.10C (Masayuki Moriyama) 20221005.5858 13.51C (Masayuki Moriyama)

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[vsnet-campaign-dn 16524] ASASSN-22lx: new SU UMa-type dwarf nova
by Taichi Kato 06 Oct '22

06 Oct '22

ASASSN-22lx: new SU UMa-type dwarf nova Josch Hambsch and Berto Monard have reported observations. This object started to show superhumps on Oct. 4. The current period is 0.0564(5) d.

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[vsnet-campaign-dn 16523] ASASSN-22lk: superhump period
by Taichi Kato 04 Oct '22

04 Oct '22

ASASSN-22lk: superhump period Period = 0.05584(2) d, amplitude 0.12 mag (after Sep. 27). My analysis suggests that early superhumps were below the detection limit. Observers: Kyoto U. team, Itoh-san, Tonny Vanmunster.

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[vsnet-campaign-dn 16522] TCP J23580961+5502508: updated period of early superhumps
by Taichi Kato 03 Oct '22

03 Oct '22

TCP J23580961+5502508: updated period of early superhumps Period = 0.05940(1) d. Mean amplitude 0.15 mag. Observers: Kyoto U. team, Itoh-san, Osaka Kyoiku U. team, Kiyota-san, Tamas Tordai, Sano-san, Josch Hambsch

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[vsnet-campaign-dn 16521] Re: ASASSN-22lk: new WZ Sge-type dwarf nova
by Taichi Kato 01 Oct '22

01 Oct '22

Re: ASASSN-22lk: new WZ Sge-type dwarf nova Dear Tonny, please post messages of new objects as new threads, rather than referring to older messages. Your postings are placed as comments to older messages and don't appear as individual threads. See: http://ooruri.kusastro.kyoto-u.ac.jp/mailman3/hyperkitty/list/vsnet-alert@o… and http://ooruri.kusastro.kyoto-u.ac.jp/mailman3/hyperkitty/list/vsnet-alert@o…

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vsnet-campaign-dn October 2022