November 2021 - vsnet-newvar - ooruri.kusastro.kyoto-u.ac.jp

[vsnet-newvar 8977] CRTS J071924.1+292343 likely superoutburst
by Taichi Kato 15 Nov '21

15 Nov '21

CRTS J071924.1+292343 likely superoutburst Established SU UMa star. YYYYMMDD(UT) mag observer 20211031.4917 19.333zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211103.4512 19.843zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211106.4472 19.374zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211107.4561 19.812zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211109.3739 17.482zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211112.4067 17.616zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211113.3803 16.657zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211113.4214 16.779zr (Zwicky Transient Facility Lasair (Masci+ 2019))

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[vsnet-newvar 8976] ASASSN-15ap possible superoutburst
by Taichi Kato 15 Nov '21

15 Nov '21

ASASSN-15ap possible superoutburst Established SU UMa star. YYYYMMDD(UT) mag observer 20211113.4181 15.552zr (Zwicky Transient Facility Lasair (Masci+ 2019))

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[vsnet-newvar 8975] ASASSN-20cz outburst
by Taichi Kato 15 Nov '21

15 Nov '21

ASASSN-20cz outburst Subtype unknown. YYYYMMDD(UT) mag observer 20211107.4575 17.242zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211107.4779 17.459zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211111.3928 15.681zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211111.4032 15.722zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211113.4191 15.766zr (Zwicky Transient Facility Lasair (Masci+ 2019))

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[vsnet-newvar 8974] ASASSN-17ag superhumps
by Taichi Kato 15 Nov '21

15 Nov '21

ASASSN-17ag superhumps Observations by Itoh-san clearly detected superhumps. Since the 2019 observation covered only a single night, subsequent observations during the current superoutburst provides an opportunity to obtain an accurate superhump period.

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[vsnet-newvar 8973] TCP J17242302+3258109 = ZTFJ172422.91+325812.5
by Taichi Kato 14 Nov '21

14 Nov '21

TCP J17242302+3258109 = ZTFJ172422.91+325812.5 mag 13.3 on Nov. 13 http://www.cbat.eps.harvard.edu/unconf/followups/J17242302+3258109.html 172422.9 +325812 (2000.0) ZTFJ172422.91+325812.5 susp g=20.934 r=20.726 amp=0.962 P=230.1001600 logfalse=-2.992 172422.944 +325811.74 (2000.0) GALEX_DR5_6371513930611688052 NUV=21.700(0.346) FUV=-(-)

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[vsnet-newvar 8972] ZTF19abzzuin: AM CVn star fading tail + rebrightenings
by Taichi Kato 14 Nov '21

14 Nov '21

ZTF19abzzuin: AM CVn star fading tail + rebrightenings https://www.aavso.org/vsx/index.php?view=detail.top&oid=2225215 ZTF data of this object showed typical fading tail and rebrightenings. Most likely WZ Sge-type AM CVn outburst. See: https://ui.adsabs.harvard.edu/abs/2021PASJ..tmp...89K/abstract

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[vsnet-newvar 8971] Re: XM78HT rebrightening
by Taichi Kato 14 Nov '21

14 Nov '21

Re: XM78HT rebrightening According to observations by Tamas Tordai, this rebrightening already started on Nov. 11 (no observations on Nov. 10). The fading was "dip" type. Long rebrightening is expected.

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[vsnet-newvar 8970] ASASSN-18wi likely superoutburst
by Taichi Kato 14 Nov '21

14 Nov '21

ASASSN-18wi likely superoutburst Type from ZTF data. YYYYMMDD(UT) mag observer 20211113.1105 17.036zr (Zwicky Transient Facility Lasair (Masci+ 2019))

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[vsnet-newvar 8969] Gaia21ecp: likely WZ Sge star
by Taichi Kato 14 Nov '21

14 Nov '21

Gaia21ecp: likely WZ Sge star Multiple rebrightenings in ZTF data.

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[vsnet-newvar 8968] CRTS J120052.9-152620 likely superoutburst
by Taichi Kato 14 Nov '21

14 Nov '21

CRTS J120052.9-152620 likely superoutburst Known SU UMa star. http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia21fdi/ Gaia21fdi AT2021aena 2021-11-11 20:19:06 180.22037 -15.43900 14.56 17.51 1.49 unknown 2021-11-13 14:40:40 outburst in candidate CV

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vsnet-newvar November 2021