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

[vsnet-alert 26762] Blazar 1308+326 optical flare
by Stefan Karge 08 May '22

08 May '22

Blazar 1308+326 (OP +313, AU CVn, B2 1308+32; z=0.997) optical flare object date (UTC) mag comment -------------------------------------------------- 1308+326 20220504.178 15.16C active 1308+326 22020505.152 15.23V active -------------------------------------------------- Brightest optical state since 2002. See also ATel #15334. -------------------------------------------------- Stefan Karge (SKA) 40cm-Refl. + CCD + Clear/V-Johnson (remote) http://quasar.square7.ch/fqm/1308+326.html _______________________________________________

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[vsnet-alert 26761] asassn-22gm: an eclipsing CV with short period
by Berto Monard 07 May '22

07 May '22

ASASSN-22gm was observed at KKO on May 5-6. Time series photometry over 5h showed a fading trend with a mean magnitude of 15.2CR. Noticeable are clear eclipses hinting at a short Porb of 0.0288d. Berto Monard / CBA KKO Calitzdorp, South Africa

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[vsnet-alert 26760] NSV 4618 superoutburst
by Taichi Kato 07 May '22

07 May '22

NSV 4618 superoutburst YYYYMMDD(UT) mag observer 20220427.1620 16.578zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220427.1695 17.765zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220428.1691 16.616zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220428.1913 16.736zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220430.1933 17.887zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220430.1947 17.700zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220502.1905 13.896zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220503.538 133 (Rod Stubbings) 20220504.1881 13.842zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220504.8945 130cG (Masao Funada)

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[vsnet-alert 26758] 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 Transient Facility Lasair (Masci+ 2019)) 20220405.5067 18.811zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220405.5118 18.856zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220409.8305 <150c (Yutaka Maeda) 20220421.8256 <145c (Yutaka Maeda) 20220502.4045 14.623zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220502.4523 14.647zg (Zwicky Transient Facility Lasair (Masci+ 2019))

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[vsnet-alert 26757] 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 Lasair (Masci+ 2019)) 20220427.4673 15.668zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220429.4558 15.757zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220429.4690 15.760zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220502.4098 15.926zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220502.4485 15.949zg (Zwicky Transient Facility Lasair (Masci+ 2019))

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[vsnet-alert 26756] 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 Facility Lasair (Masci+ 2019)) 20220427.1999 16.471zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220427.2658 16.803zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220429.3873 16.638zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220501.2588 16.692zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220501.2863 16.720zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220503.3130 16.918zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220503.3676 16.787zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220503.6015 <162c (Yutaka Maeda) 20220504.5874 <153c (Yutaka Maeda)

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[vsnet-alert 26755] 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-alert 26754] 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-alert 26759] 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-alert 26753] 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-alert May 2022