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

[vsnet-alert 27811] 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-alert 27810] 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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[vsnet-alert 27809] OU Vir superoutburst
by Taichi Kato 04 Jun '23

04 Jun '23

OU Vir superoutburst UGSU+E YYYYMMDD(UT) mag observer 20230526.3254 <17.574g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230526.4870 <147c (Yutaka Maeda) 20230526.947 <147 (Gary Poyner) 20230527.969 <147 (Gary Poyner) 20230529.2339 <17.015g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230530.2482 15.346g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230602.4840 145:c (Yutaka Maeda) 20230602.4840 145:c (Yutaka Maeda)

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[vsnet-alert 27808] ASASSN-19add possible superoutburst
by Taichi Kato 02 Jun '23

02 Jun '23

ASASSN-19add possible superoutburst ASAS-SN Sky Patrol Photom. DB in combined magnitude. ATLAS data were before the current outburst. YYYYMMDD(UT) mag observer 20230525.0351 17.146g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230525.0351 17.213g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230526.6907 <17.009g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230526.7132 18.449o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230526.7166 18.668o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230526.7264 18.408o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230526.7425 18.884o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230527.0267 16.421g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230527.0267 16.531g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230527.7057 15.969g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230528.0265 15.835g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230528.0265 15.985g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230528.7168 16.003g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230530.0218 16.005g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230530.0218 16.006g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230601.0151 16.162g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014))

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[vsnet-alert 27807] ASASSN-23el previous outburst
by Taichi Kato 02 Jun '23

02 Jun '23

ASASSN-23el previous outburst https://www.aavso.org/vsx/index.php?view=detail.top&oid=2387521 YYYYMMDD(UT) mag observer 20030528.2597 <14.50V (ASAS (Pojmanski, G. 2002, Acta Astron. 52,397)) 20030531.3910 13.178V (ASAS (Pojmanski, G. 2002, Acta Astron. 52,397)) 20030604.1465 13.581V (ASAS (Pojmanski, G. 2002, Acta Astron. 52,397)) 20030612.3281 <14.50V (ASAS (Pojmanski, G. 2002, Acta Astron. 52,397))

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[vsnet-alert 27806] ASASSN-20an outburst
by Taichi Kato 02 Jun '23

02 Jun '23

ASASSN-20an outburst YYYYMMDD(UT) mag observer 20230523.7771 16.720c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230523.7870 16.678c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230523.7899 16.718c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230523.7961 16.705c (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230525.0610 16.971o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230525.0643 16.926o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230525.0706 16.911o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230525.0842 16.895o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230526.7686 16.901o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230526.7725 16.998o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230526.7777 16.988o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230526.7884 17.076o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230526.7907 17.038o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230526.7936 17.065o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230526.7988 17.097o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021))

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[vsnet-alert 27805] V1006 Cyg: standstill-like state?
by Taichi Kato 02 Jun '23

02 Jun '23

V1006 Cyg: standstill-like state? cf. [vsnet-alert 27728] V1006 Cyg unusual state with frequent, short outbursts The object stopped outbursting and may have entered a standstill-like state in May. YYYYMMDD(UT) mag observer 20230511.7231 148cG (Yutaka Maeda) 20230512.4044 15.256zg (ZTF Alert DC mag (Masci+ 2019)) 20230512.4535 15.413zr (ZTF Alert DC mag (Masci+ 2019)) 20230512.5821 15.621o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230512.5839 15.573o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230512.5885 15.657o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230512.6067 15.633o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230512.6123 17.280o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230512.6142 17.818o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230513.4079 16.235zg (ZTF Alert DC mag (Masci+ 2019)) 20230513.4660 16.180zr (ZTF Alert DC mag (Masci+ 2019)) 20230514.3641 16.475zg (ZTF Alert DC mag (Masci+ 2019)) 20230514.4300 16.392zr (ZTF Alert DC mag (Masci+ 2019)) 20230514.5433 16.523o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230514.5455 16.499o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230514.5469 16.631o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230514.5501 16.588o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230514.5583 16.635o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230514.5587 16.732o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230514.7588 <146c (Yutaka Maeda) 20230515.4218 16.424zr (ZTF Alert DC mag (Masci+ 2019)) 20230515.4433 16.591zg (ZTF Alert DC mag (Masci+ 2019)) 20230515.7188 <150c (Yutaka Maeda) 20230516.7121 <153c (Yutaka Maeda) 20230517.3622 16.685zg (ZTF Alert DC mag (Masci+ 2019)) 20230517.4078 16.490zr (ZTF Alert DC mag (Masci+ 2019)) 20230518.4495 16.498zr (ZTF Alert DC mag (Masci+ 2019)) 20230518.9757 <142 (Eddy Muyllaert) 20230519.4342 16.438zg (ZTF Alert DC mag (Masci+ 2019)) 20230519.4556 16.350zr (ZTF Alert DC mag (Masci+ 2019)) 20230519.7238 <165c (Yutaka Maeda) 20230520.4103 16.317zr (ZTF Alert DC mag (Masci+ 2019)) 20230520.4222 16.529zg (ZTF Alert DC mag (Masci+ 2019)) 20230521.3914 16.630zg (ZTF Alert DC mag (Masci+ 2019)) 20230521.4452 16.387zr (ZTF Alert DC mag (Masci+ 2019)) 20230522.4103 16.117zr (ZTF Alert DC mag (Masci+ 2019)) 20230522.4329 16.249zg (ZTF Alert DC mag (Masci+ 2019)) 20230522.5622 15.964o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230522.5640 15.966o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230522.5703 15.984o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230522.5803 16.004o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230523.4109 15.797zr (ZTF Alert DC mag (Masci+ 2019)) 20230523.4500 15.781zg (ZTF Alert DC mag (Masci+ 2019)) 20230523.7312 <156c (Yutaka Maeda) 20230524.5397 16.361o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230524.5690 16.558o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230524.5700 16.627o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230524.5719 16.227o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230524.5723 16.468o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230524.5755 16.455o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230524.5777 16.429o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230525.4272 16.517zg (ZTF Alert DC mag (Masci+ 2019)) 20230525.4306 16.451zg (ZTF Alert DC mag (Masci+ 2019)) 20230525.4569 16.368zr (ZTF Alert DC mag (Masci+ 2019)) 20230525.4584 16.462zr (ZTF Alert DC mag (Masci+ 2019)) 20230526.4982 16.209o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230526.5009 16.226o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230526.5216 16.167o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230526.5271 16.363o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230528.5220 16.256o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230528.5247 16.328o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230528.5394 16.541o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230528.5495 16.326o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230530.5202 16.347o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230530.5231 16.409o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230530.5302 16.325o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230601.5119 16.327o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230601.5146 16.477o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230601.5358 16.478o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230601.5539 16.437o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021))

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[vsnet-alert 27804] Re: Carter_SDSSJ173047.59+554518.5 rare superoutburst (AM CVn)
by Taichi Kato 02 Jun '23

02 Jun '23

Re: Carter_SDSSJ173047.59+554518.5 rare superoutburst (AM CVn) Recent data: YYYYMMDD(UT) mag observer 20230524.5141 19.376o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230524.5442 19.253o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230524.5502 19.170o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230525.3606 19.310zr (ZTF Alert DC mag (Masci+ 2019)) 20230525.3891 19.188zr (ZTF Alert DC mag (Masci+ 2019)) 20230525.4054 19.499zg (ZTF Alert DC mag (Masci+ 2019)) 20230526.4524 18.826o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230526.4779 19.099o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230526.4817 18.659o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230526.5090 18.846o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230528.5122 14.480o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230528.5419 14.478o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230528.5739 14.455o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230528.6010 14.504o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230530.5266 14.752o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230530.5589 14.574o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230531.522 144C (Mitsutaka Hiraga) 20230531.621 144C (Mitsutaka Hiraga) 20230601.2496 14.405g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230601.4872 14.975o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230601.4908 14.960o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230601.5198 14.908o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) Time-resolved photometric campaigns were conducted in 2014 and 2016.

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[vsnet-alert 27803] Carter_SDSSJ173047.59+554518.5 rare superoutburst (AM CVn)
by Taichi Kato 02 Jun '23

02 Jun '23

Carter_SDSSJ173047.59+554518.5 rare superoutburst (AM CVn) Time-resolved photometry is very much encouraged. Last one in 2016. YYYYMMDD(UT) mag observer 20230519.4613 19.506zr (ZTF Alert DC mag (Masci+ 2019)) 20230520.555 <175C (Mitsutaka Hiraga) 20230521.4107 19.487zr (ZTF Alert DC mag (Masci+ 2019)) 20230522.3612 19.660zr (ZTF Alert DC mag (Masci+ 2019)) 20230523.4322 19.479zg (ZTF Alert DC mag (Masci+ 2019)) 20230523.564 <172C (Mitsutaka Hiraga) 20230525.3606 19.310zr (ZTF Alert DC mag (Masci+ 2019)) 20230525.3891 19.188zr (ZTF Alert DC mag (Masci+ 2019)) 20230525.4054 19.499zg (ZTF Alert DC mag (Masci+ 2019)) 20230531.522 144C (Mitsutaka Hiraga) 20230531.621 144C (Mitsutaka Hiraga) 20230601.2496 14.405g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014))

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[vsnet-alert 27802] PS16bqk most likely superoutburst (AM CVn?)
by Taichi Kato 02 Jun '23

02 Jun '23

PS16bqk most likely superoutburst (AM CVn?) As suggested by VSX, the AM CVn type is highly likely. Time-resolved photometry is encouraged. https://www.aavso.org/vsx/index.php?view=detail.top&oid=2387514 YYYYMMDD(UT) mag observer 20230521.3680 15.557zg (ZTF Alert DC mag (Masci+ 2019)) 20230521.4196 15.880zr (ZTF Alert DC mag (Masci+ 2019)) 20230521.5006 15.910o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230521.5024 15.939o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230521.5063 15.931o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230521.5122 15.929o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230523.4022 16.172zr (ZTF Alert DC mag (Masci+ 2019)) 20230523.4450 15.880zg (ZTF Alert DC mag (Masci+ 2019)) 20230523.6066 16.243o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230523.6098 16.279o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230523.6130 16.314o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230523.6161 16.219o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230525.3853 16.439zr (ZTF Alert DC mag (Masci+ 2019)) 20230525.4212 16.161zg (ZTF Alert DC mag (Masci+ 2019)) 20230525.5762 16.517o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230525.5771 16.548o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230525.5803 16.639o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230525.5835 16.637o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230525.5934 16.558o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230525.5971 16.603o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230525.5975 16.540o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230525.6069 16.364o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230525.6187 16.521o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230527.4255 19.080zg (ZTF Alert DC mag (Masci+ 2019)) 20230527.4791 19.212o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230529.4187 16.774o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230529.4214 16.816o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230529.4264 16.831o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230529.4541 16.815o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230530.4052 16.408zg (ZTF Alert DC mag (Masci+ 2019)) 20230531.4750 16.827o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021))

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2024

2023

2022

2021

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