May 2022 - vsnet-newvar - ooruri.kusastro.kyoto-u.ac.jp

[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 Lasair (Masci+ 2019)) 20220504.1652 14.257zr (Zwicky Transient Facility Lasair (Masci+ 2019))

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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 Facility Lasair (Masci+ 2019)) 20220428.5006 17.041zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220428.5030 17.053zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220429.4911 17.000zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220429.4935 16.945zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220429.4959 16.928zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220429.4984 16.843zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220429.5008 16.853zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220430.4918 16.891zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220430.4943 16.866zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220430.4967 16.838zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220430.4991 16.862zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220430.5015 16.920zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220501.4908 17.028zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220501.4932 17.008zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220501.4956 17.009zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220501.4981 17.060zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220501.5005 17.006zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220502.4878 17.075zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220502.4902 17.071zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220502.4973 17.148zg (Zwicky Transient Facility Lasair (Masci+ 2019))

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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 Lasair (Masci+ 2019)) 20220501.4279 14.942zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220501.4489 15.017zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220503.4363 15.113zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220503.4660 15.307zg (Zwicky Transient Facility Lasair (Masci+ 2019))

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[vsnet-newvar 9299] ASASSN-15sn superoutburst
by Taichi Kato 06 May '22

06 May '22

ASASSN-15sn superoutburst YYYYMMDD(UT) mag observer 20220424.8141 <148c (Yutaka Maeda) 20220502.8248 <156c (Yutaka Maeda) 20220503.8239 150:cG (Yutaka Maeda) 20220503.8240 150:cG (Yutaka Maeda) 20220504.8076 152:c (Yutaka Maeda) 20220504.8076 152:c (Yutaka Maeda)

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[vsnet-newvar 9298] ASASSN-16hb rare outburst (AM CVn)
by Taichi Kato 04 May '22

04 May '22

ASASSN-16hb rare outburst (AM CVn) AM CVn star. Outburst since 2016? YYYYMMDD(UT) mag observer 20220418.5890 <159c (Yutaka Maeda) 20220419.5948 <156c (Yutaka Maeda) 20220420.5921 <143c (Yutaka Maeda) 20220424.5978 <159c (Yutaka Maeda) 20220502.5845 149:c (Yutaka Maeda)

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[vsnet-newvar 9297] ASASSN-22gb: new SU UMa-type dwarf nova
by Taichi Kato 04 May '22

04 May '22

ASASSN-22gb: new SU UMa-type dwarf nova Berto Monard has reported time-resolved photometry. The object started to show superhumps on Apr. 31 with a period of 0.05439(6) d (stage A superhumps). Josch Hambsch has also contributed some observations, but not long enough to illustrate superhumps.

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[vsnet-newvar 9296] CRTS J164950.4+035835 superhump period
by Taichi Kato 03 May '22

03 May '22

CRTS J164950.4+035835 superhump period Itoh-san, Shugarov's team and Filipp Romanov have reported observations. The superhump period (during the plateau phase) has been confirmed to be 0.06922(3) d (amplitude 0.16 mag). The data in 2015 and 2016 (2017, PASJ 69, 75) were of very limited quality and the present period supersedes the older one.

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[vsnet-newvar 9295] Re: ASASSN-19hs bright outburst
by Taichi Kato 03 May '22

03 May '22

Re: ASASSN-19hs bright outburst > (But on Apr. 19) The 2019 Mar. outburst lasted more than a month (resembling a superoutburst of an AM CVn star). The object may be still bright.

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[vsnet-newvar 9294] ASASSN-19hs bright outburst
by Taichi Kato 03 May '22

03 May '22

ASASSN-19hs bright outburst (But on Apr. 19) http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia22bti/ Gaia22bti AT2022jfe 2022-04-19 19:19:07 94.96753 24.34962 15.01 18.37 1.32 unknown 2022-05-02 09:11:04 Outburst in candidate CV ASASSN-19hs

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