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

[vsnet-alert 26599] ASASSN-13cz outburst
by Taichi Kato 20 Feb '22

20 Feb '22

ASASSN-13cz outburst (Known SU UMa star) YYYYMMDD(UT) mag observer 20220208.7678 <156c (Yutaka Maeda) 20220210.7753 <157c (Yutaka Maeda) 20220213.2126 <160cG (Masao Funada) 20220220.4503 14.558zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220220.4900 14.802zr (Zwicky Transient Facility Lasair (Masci+ 2019))

1 0

[vsnet-alert 26598] ASASSN-13al superoutburst
by Taichi Kato 20 Feb '22

20 Feb '22

ASASSN-13al superoutburst YYYYMMDD(UT) mag observer 20220201.8747 <148c (Yutaka Maeda) 20220208.8926 <136c (Yutaka Maeda) 20220218.5170 14.944zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220218.5308 15.222zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220220.5150 15.666zr (Zwicky Transient Facility Lasair (Masci+ 2019))

1 0

[vsnet-alert 26597] ET Sge outburst
by Taichi Kato 20 Feb '22

20 Feb '22

ET Sge outburst Relatively rare outburst. YYYYMMDD(UT) mag observer 20220218.5597 17.177zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220219.5537 16.604zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220219.5562 16.607zr (Zwicky Transient Facility Lasair (Masci+ 2019))

1 0

[vsnet-alert 26596] ZTF J175758.83+242427.3 likely superoutburst
by Taichi Kato 20 Feb '22

20 Feb '22

ZTF J175758.83+242427.3 likely superoutburst UGSU:+E Supercycle 100 d. YYYYMMDD(UT) mag observer 20220213.4770 15.805zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220213.4952 15.977zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220215.4971 15.906zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220219.5042 15.973zr (Zwicky Transient Facility Lasair (Masci+ 2019))

1 0

[vsnet-alert 26595] MASTER OT J185838.73+460207.2 superoutburst
by Taichi Kato 19 Feb '22

19 Feb '22

MASTER OT J185838.73+460207.2 superoutburst YYYYMMDD(UT) mag observer 20220130.8910 <149c (Yutaka Maeda) 20220201.8587 <146c (Yutaka Maeda) 20220208.8776 <154c (Yutaka Maeda) 20220210.8856 <152c (Yutaka Maeda) 20220211.5110 15.403zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220211.5322 15.700zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220213.4928 15.426zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220215.4995 15.982zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220218.5156 16.111zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220218.5293 16.324zr (Zwicky Transient Facility Lasair (Masci+ 2019))

1 0

[vsnet-alert 26594] SX LMi possible superoutburst
by Taichi Kato 19 Feb '22

19 Feb '22

SX LMi possible superoutburst Faint superoutburst? YYYYMMDD(UT) mag observer 20220210.6356 <157c (Yutaka Maeda) 20220210.9417 <142 (Eddy Muyllaert) 20220212.1599 171C (Masao Funada) 20220213.041 17.11C (Gary Poyner) 20220213.0417 16.88C (Eddy Muyllaert) 20220213.3014 17.268zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220215.6404 146:cG (Yutaka Maeda) 20220215.6405 146:cG (Yutaka Maeda) 20220218.2036 14.218zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220218.4051 14.104zr (Zwicky Transient Facility Lasair (Masci+ 2019))

1 0

[vsnet-alert 26593] V589 Her likely superoutburst
by Taichi Kato 19 Feb '22

19 Feb '22

V589 Her likely superoutburst YYYYMMDD(UT) mag observer 20220208.8042 <150c (Yutaka Maeda) 20220210.8120 <152c (Yutaka Maeda) 20220213.4457 18.461zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220218.4712 15.285zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220218.4958 15.113zg (Zwicky Transient Facility Lasair (Masci+ 2019))

1 0

[vsnet-alert 26592] ASASSN-22bs: periods of superhumps and early superhumps (WZ Sge star)
by Taichi Kato 18 Feb '22

18 Feb '22

ASASSN-22bs: periods of superhumps and early superhumps (WZ Sge star) Kyoto U team, Kiyota-san, Itoh-san, Tonny Vanmunster, Josch Hambsch, Stephen Brincat and Berto Monard have reported observations. The superhump period has been determined to be 0.05710(7) d. By using this identification, the period of early superhumps has been determined to be 0.05630(3) d (full amplitude 0.025 mag). The object is established to be a WZ Sge star.

1 0

[vsnet-alert 26591] TCP J14420760-1758238: superhump period
by Taichi Kato 18 Feb '22

18 Feb '22

TCP J14420760-1758238: superhump period Josch Hambsch has reported further observations. The superhump period is 0.06335(8) d. The current mean amplitude is 0.11 mag.

1 0

[vsnet-alert 26590] ASASSN-22bs: new SU UMa (likely WZ Sge) star
by Taichi Kato 18 Feb '22

18 Feb '22

ASASSN-22bs: new SU UMa (likely WZ Sge) star According to the most recent data by Josch Hambsch, ordinary superhumps appeared on Feb. 16. The current period is about 0.06 d (amplitude 0.25 mag). Considering the relatively long waiting time (8 d), this object is likely a borderline WZ Sge/SU UMa system.

1 0