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

[vsnet-alert 26417] ASASSN-18zm most likely superoutburst
by Taichi Kato 13 Nov '21

13 Nov '21

ASASSN-18zm most likely superoutburst Type from ZTF data. YYYYMMDD(UT) mag observer 20211104.2473 16.739zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211104.2483 16.739zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211106.2179 16.775zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211106.3037 16.659zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211106.3041 16.667zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211108.1561 16.878zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211111.2015 17.476zr (Zwicky Transient Facility Lasair (Masci+ 2019))

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[vsnet-alert 26416] ASASSN-17ag superoutburst
by Taichi Kato 13 Nov '21

13 Nov '21

ASASSN-17ag superoutburst There were only single-night observations in the past. YYYYMMDD(UT) mag observer 20211030.4690 20.498zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211031.7467 <159c (Yutaka Maeda) 20211101.7631 <157c (Yutaka Maeda) 20211102.7342 <152c (Yutaka Maeda) 20211103.3433 19.881zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211103.7424 <164c (Yutaka Maeda) 20211104.7325 <152c (Yutaka Maeda) 20211106.7397 <162c (Yutaka Maeda) 20211107.3622 16.105zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211110.1042 14.88C (Eddy Muyllaert) 20211112.3826 15.514zr (Zwicky Transient Facility Lasair (Masci+ 2019))

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[vsnet-alert 26413] AY Ori
by Hiroyuki Maehara 12 Nov '21

12 Nov '21

According to Kojima-san, AY Ori (CTTS) has brightened to 13.7 mag. object YYYYMMDD(UT) mag code ORIAY 20211017.750 144c TKo ORIAY 20211105.682 142c TKo ORIAY 20211110.586 137c TKo Observer: Tadashi Kojima (Gunma, Japan) Instruments: f.l.=300mm lens + Canon EOS 6D This brightening was also detected by ASAS-SN (Shappee et al., 2014, ApJ 788, 48 and Kochanek et al., 2017, PASP 129, 104502). https://asas-sn.osu.edu/sky-patrol/coordinate/2fb1d045-6dd0-4cf5-b190-aa030…

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[vsnet-alert 26409] V347 Aur light curve
by Taichi Kato 12 Nov '21

12 Nov '21

V347 Aur light curve ASAS-SN data: https://asas-sn.osu.edu/sky-patrol/coordinate/9d1c40e3-d651-420c-8aa5-e8a8f… The events look nearly periodic. Caused by an eccentric orbiting secondary?

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[vsnet-alert 26411] TCP J07363658+4151215 superhump period
by Taichi Kato 12 Nov '21

12 Nov '21

TCP J07363658+4151215 superhump period (=ASASSN-21um, vsnet-alert 26400) Using observations since Nov. 9 (Tamas Tordai and Kiyota-san), the superhump period is 0.08591(4) d. The period is unusually long for the outburst amplitude, but the large amplitude of superhumps excludes a low mass-ratio object.

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[vsnet-alert 26410] ASASSN-21uq
by Taichi Kato 12 Nov '21

12 Nov '21

ASASSN-21uq ASASSN-21uq --- ------- 21:47:0.25 -17:9:52.7 2021-11-7.16 14.03 SDSS DSS VIZIER ------- CV candidate, no Vizier match, g>18.1 on 2021-11-06.10, g=14.3 on 2021-11-07.16, g=15.3 on 2021-11-09.83 ASASSN-21uq 20211106.10 <181g ASN ASASSN-21uq 20211107.16 143g ASN ASASSN-21uq 20211109.83 153g ASN

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[vsnet-alert 26408] ASASSN-18yi: superhump + eclipse
by Taichi Kato 12 Nov '21

12 Nov '21

ASASSN-18yi: superhump + eclipse Josch Hambsch has reported observations. The object showed a superhump + eclipse. The current outburst is a superoutburst (first since 2018).

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[vsnet-alert 26407] MGAB-V3593 bright outburst
by Taichi Kato 12 Nov '21

12 Nov '21

MGAB-V3593 bright outburst Superoutburst in 2021 Aug. Too early for the next one? YYYYMMDD(UT) mag observer 20211029.4246 158C (Masayuki Moriyama) 20211107.4207 149C (Masayuki Moriyama)

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[vsnet-alert 26406] MASTER OT J204723.04+072759.1 possible superoutburst
by Taichi Kato 12 Nov '21

12 Nov '21

MASTER OT J204723.04+072759.1 possible superoutburst Possible type from ZTF data. Possible superoutburst + rebrightening in 2020 June. YYYYMMDD(UT) mag observer 20211031.4642 <159c (Yutaka Maeda) 20211101.4775 <154c (Yutaka Maeda) 20211102.4517 <150c (Yutaka Maeda) 20211103.4550 <160c (Yutaka Maeda) 20211107.4652 <152cG (Yutaka Maeda) 20211111.1108 15.345zg (Zwicky Transient Facility Lasair (Masci+ 2019))

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[vsnet-alert 26405] CRTS J175633.3+572927 possible superoutburst
by Taichi Kato 12 Nov '21

12 Nov '21

CRTS J175633.3+572927 possible superoutburst Possible type from ZTF data. YYYYMMDD(UT) mag observer 20211103.1229 17.439zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211103.1401 17.669zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211105.0982 17.208zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211107.1200 16.682zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211109.1362 16.602zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211111.1208 16.717zg (Zwicky Transient Facility Lasair (Masci+ 2019))

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