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

[vsnet-newvar 9309] ASASSN-20pv: second post-superoutburst plateau (AM CVn)
by Taichi Kato 10 May '22

10 May '22

ASASSN-20pv: second post-superoutburst plateau (AM CVn) YYYYMMDD(UT) mag observer 20220415.1853 15.146g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20220415.1866 15.245g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20220415.1878 15.577g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20220416.1989 15.410g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20220416.2002 15.597g (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017)) 20220416.2015 15.608g (ASAS-SN survey (… [View More]

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[vsnet-newvar 9308] ASASSN-22gb: stage A superhumps
by Taichi Kato 09 May '22

09 May '22

ASASSN-22gb: stage A superhumps Berto Monard and Josch Hambsch have reported further observations. The amplitudes of superhumps have been growing and the maxima were expressed by 0.05442(5) d (stage A superhumps). The long duration of stage A suggests a relatively small q.

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[vsnet-newvar 9307] ASASSN-22gm: eclipsing AM CVn star
by Taichi Kato 09 May '22

09 May '22

ASASSN-22gm: eclipsing AM CVn star Berto Monard has reported observations. I obtained the following ephemeris (single night): BJD(Min) = 2459705.53602(7) + 0.02890(3) E Eclipse depth 0.26 mag. No superhumps were detected. The orbital profile is somewhat strange in that it showed two maxima in one orbital cycle. They might be (super)hump-like variations with a period of the orbital period. The object is most likely an eclipsing AM CVn star with infrequent outbursts. Further … [View More]

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[vsnet-newvar 9305] MASTER OT J212624.16+253827.2 likely superoutburst
by Taichi Kato 07 May '22

07 May '22

MASTER OT J212624.16+253827.2 likely superoutburst YYYYMMDD(UT) mag observer 20220402.5030 18.805zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220402.5055 18.640zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220402.5080 18.666zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220402.5105 18.844zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220405.5016 18.808zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220405.5042 18.787zr (Zwicky … [View More]

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[vsnet-newvar 9304] MASTER OT J193347.47+442455.5 likely superoutburst
by Taichi Kato 07 May '22

07 May '22

MASTER OT J193347.47+442455.5 likely superoutburst Type from ZTF data. Not many superoutbursts in the past. YYYYMMDD(UT) mag observer 20220420.4488 20.184zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220420.4718 22.053zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220425.4488 19.068zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220425.4703 18.816zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220427.4306 15.563zg (Zwicky Transient Facility … [View More]

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[vsnet-newvar 9303] MASTER OT J155215.19+831424.4 possible superoutburst
by Taichi Kato 07 May '22

07 May '22

MASTER OT J155215.19+831424.4 possible superoutburst Type from ZTF data. YYYYMMDD(UT) mag observer 20220418.6094 <158c (Yutaka Maeda) 20220419.6140 <153c (Yutaka Maeda) 20220421.4282 16.070zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220421.4685 16.109zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220424.6172 <157c (Yutaka Maeda) 20220425.2789 16.193zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220425.4116 16.222zg (Zwicky Transient … [View More]

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[vsnet-newvar 9302] CRTS J095926.4-160147 superoutburst
by Taichi Kato 07 May '22

07 May '22

CRTS J095926.4-160147 superoutburst YYYYMMDD(UT) mag observer 20220420.1695 19.488zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220424.1905 19.715zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220426.2176 19.459zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220428.1691 19.550zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220430.1933 17.020zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220502.2091 14.259zr (Zwicky Transient Facility … [View More]

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[vsnet-newvar 9301] CRTS J085603.8+322109 superoutburst
by Taichi Kato 07 May '22

07 May '22

CRTS J085603.8+322109 superoutburst YYYYMMDD(UT) mag observer 20220420.1798 20.710zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220424.2004 15.954zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220426.2241 15.992zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220428.1795 16.244zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220430.1780 16.673zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220502.1967 16.972zr (Zwicky Transient Facility Lasair (Masci+ 2019))

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[vsnet-newvar 9306] CRTS J232619.4+282650 most likely superoutburst
by Taichi Kato 07 May '22

07 May '22

CRTS J232619.4+282650 most likely superoutburst YYYYMMDD(UT) mag observer 20220427.4916 17.435zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220427.4939 17.432zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220427.4963 17.374zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220427.4987 17.369zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220428.4935 17.056zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220428.4982 17.055zr (Zwicky Transient … [View More]

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[vsnet-newvar 9300] ASASSN-16il superoutburst
by Taichi Kato 07 May '22

07 May '22

ASASSN-16il superoutburst YYYYMMDD(UT) mag observer 20220418.8189 <155c (Yutaka Maeda) 20220419.8229 <154c (Yutaka Maeda) 20220421.8073 <156c (Yutaka Maeda) 20220424.8247 <150c (Yutaka Maeda) 20220427.4282 14.789zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220427.4697 14.622zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220429.4099 14.752zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220429.4283 15.014zg (Zwicky Transient Facility … [View More]

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