[vsnet-alert 24587] MASTER OT J191841.98+444914.5 (UGSU/IBWD) outburst

Denis Denisenko d.v.denisenko@gmail.com via vsnet-alert vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp
Tue Aug 25 03:15:00 JST 2020


I have found this outburst accidentally while verifying the bright dwarf
novae discovered by MASTER through ZTF Lasair.

MASTER OT J191841.98+444914.5
  20200814.2991  20.7r   ZTF
  20200814.3385  20.5g   ZTF
  20200817.2756  17.03r  ZTF
  20200817.3989  17.06g  ASAS-SN
  20200817.4089  17.12g  ASAS-SN
  20200819.2375  15.41g  ASAS-SN
  20200819.4004  15.40g  ASAS-SN
  20200822.3202  <173g   ASAS-SN
  20200823.1684  16.17g  ASAS-SN
  20200823.2825  16.54r  ZTF
  20200823.3218  16.27g  ZTF

ZTF Lasair data (Masci et al., 2019):
https://lasair.roe.ac.uk/object/ZTF18aavetqn/

ASAS-SN light curve for the last 20 days (Shappee et al., 2014; Kochanek et
al., 2017):
https://asas-sn.osu.edu/light_curves/fd6475cc-3acf-4d3c-9e12-6959a588dfab

P1=0.022076 d, according to Kato et al., 2017PASJ...69...75K.

Links to real-time ZTF Lasair light curves of MASTER dwarf novae brighter
than 15m:
http://scan.sai.msu.ru/~denis/MASTER-ZTF.html

Denis Denisenko


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