June 2023 - vsnet-campaign-dn - ooruri.kusastro.kyoto-u.ac.jp

[vsnet-campaign-dn 17342] Carter_SDSSJ173047.59+554518.5 superhumps
by Taichi Kato 06 Jun '23

06 Jun '23

Carter_SDSSJ173047.59+554518.5 superhumps Itoh-san reported observations on June 5 and clear superhumps were visible. The outburst was possibly composed of early superhump-type superoutburst, dip and ordinary superoutburst (type E-like in hydrogen-rich WZ Sge stars).

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[vsnet-campaign-dn 17341] SDSSJ162830.89+240259.1: superhumps
by Taichi Kato 06 Jun '23

06 Jun '23

SDSSJ162830.89+240259.1: superhumps Itoh-san recorded superhumps on June 5. According to http://ooruri.kusastro.kyoto-u.ac.jp/mailarchive/vsnet-alert/13491 G. Masi detected superhumps in 2011. The data are not in our record. If Masi still have the data, please send them to vsnet-campaign-report(a)ooruri.kusastro.kyoto-u.ac.jp

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[vsnet-campaign-dn 17340] Carter_SDSSJ173047.59+554518.5 already after dip
by Taichi Kato 05 Jun '23

05 Jun '23

Carter_SDSSJ173047.59+554518.5 already after dip (AM CVn star) Tamas Tordai and Tonny Vanmunster have reported observations. The was an apparent dip on June 3 and the object was observed to brighten on June 3-4 (with superhumps).

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[vsnet-campaign-dn 17339] ZTF23aajjayv superhump period
by Taichi Kato 05 Jun '23

05 Jun '23

ZTF23aajjayv superhump period Josch Hambsch and Tonny Vanmunster have reported further observations. The object now show superhumps. An analysis of the data since May 31 yielded a period of 0.06786(6) d, amplitude 0.11 mag. Likely a period bouncer.

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[vsnet-campaign-dn 17338] ATLAS23lgk up to now
by Taichi Kato 05 Jun '23

05 Jun '23

ATLAS23lgk up to now No time-resolved photometry has been reported. YYYYMMDD(UT) mag observer 20230524.6978 14.990o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230524.7010 14.981o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230524.7088 14.992o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230524.7204 14.961o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230527.7458 15.294o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230527.7485 15.301o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230527.7734 15.268o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230531.9851 15.344o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230531.9914 15.408o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230531.9942 15.379o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230601.0115 15.382o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230602.4886 153C (Masayuki Moriyama) 20230602.7197 15.580o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230602.7230 15.530o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230602.7282 15.510o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230602.7420 15.532o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230603.9928 15.907o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021))

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[vsnet-campaign-dn 17337] ASASSN-13cs likely superoutburst
by Taichi Kato 05 Jun '23

05 Jun '23

ASASSN-13cs likely superoutburst Last superoutbursts in 2022 Apr. YYYYMMDD(UT) mag observer 20230531.3448 <17.427g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230601.3900 <17.226g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230602.1336 <16.627g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230602.3848 <16.743g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230602.6056 <151c (Yutaka Maeda) 20230603.6084 141:cG (Yutaka Maeda) 20230603.6084 141:cG (Yutaka Maeda)

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[vsnet-campaign-dn 17336] ASASSN-13bc likely superoutburst
by Taichi Kato 05 Jun '23

05 Jun '23

ASASSN-13bc likely superoutburst (Frequent superoutbursts) YYYYMMDD(UT) mag observer 20230531.519 <176C (Mitsutaka Hiraga) 20230602.6422 <158c (Yutaka Maeda) 20230603.6450 148cG (Yutaka Maeda) 20230604.6358 152C (Masayuki Moriyama)

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[vsnet-campaign-dn 17335] V419 Lyr possible superoutburst
by Taichi Kato 05 Jun '23

05 Jun '23

V419 Lyr possible superoutburst YYYYMMDD(UT) mag observer 20230520.672 <174C (Mitsutaka Hiraga) 20230521.4207 19.038zr (ZTF Alert DC mag (Masci+ 2019)) 20230523.592 <174C (Mitsutaka Hiraga) 20230523.7581 <159c (Yutaka Maeda) 20230523.7767 <178C (Masayuki Moriyama) 20230525.7397 <178C (Masayuki Moriyama) 20230602.7119 154C (Masayuki Moriyama) 20230604.6412 155C (Masayuki Moriyama)

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[vsnet-campaign-dn 17334] HS Vir superoutburst
by Taichi Kato 05 Jun '23

05 Jun '23

HS Vir superoutburst YYYYMMDD(UT) mag observer 20230519.0104 15.824g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230519.2376 15.780zr (ZTF Alert DC mag (Masci+ 2019)) 20230519.3172 15.590zg (ZTF Alert DC mag (Masci+ 2019)) 20230519.9861 15.748g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230520.0444 15.891g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230520.6469 159C (Masayuki Moriyama) 20230521.0023 15.917g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230521.3239 15.496zg (ZTF Alert DC mag (Masci+ 2019)) 20230521.6282 159C (Masayuki Moriyama) 20230523.4755 <146c (Yutaka Maeda) 20230523.6496 157C (Masayuki Moriyama) 20230523.7181 15.695g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230524.3679 16.076g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230525.1099 16.057g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230525.2483 15.767zr (ZTF Alert DC mag (Masci+ 2019)) 20230525.2609 16.277g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230525.2666 15.747zg (ZTF Alert DC mag (Masci+ 2019)) 20230525.633 156 (Rod Stubbings) 20230526.7097 15.934g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230527.0961 15.987g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230527.7363 15.914g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230528.1017 14.819g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230528.2782 14.584g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230528.667 142 (Rod Stubbings) 20230602.4744 137:cG (Yutaka Maeda) 20230602.5706 139C (Masayuki Moriyama) 20230603.4784 135cG (Yutaka Maeda) 20230603.4784 135cG (Yutaka Maeda)

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[vsnet-campaign-dn 17333] SDSSJ162830.89+240259.1 most likely superoutburst
by Taichi Kato 04 Jun '23

04 Jun '23

SDSSJ162830.89+240259.1 most likely superoutburst No time-resolved photometry has been reported to us. Observations are encouraged. YYYYMMDD(UT) mag observer 20230527.9076 <17.439g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230528.2858 <16.410g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230528.3360 <17.122g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230528.8989 <17.271g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230529.3197 <17.616g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230531.3897 17.551g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230531.553 <177C (Mitsutaka Hiraga) 20230601.1498 <16.260g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230601.2442 <16.680g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230602.1869 14.596g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230602.5449 147cG (Yutaka Maeda) 20230602.5449 147cG (Yutaka Maeda)

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