[vsnet-alert 25652] TW Vir unusual behavior

[Taichi Kato]

TW Vir unusual behavior

  Steady brightening since Mar. 23.  Standstill-like
phase?  Even a suggestion of IW And behavior?

ASAS-SN data:
https://asas-sn.osu.edu/sky-patrol/coordinate/edfd1614-2814-4561-b3da-ae9957316df8

  YYYYMMDD(UT)   mag  observer
  20210322.3032 14.940g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210322.3045 15.063g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210322.3057 14.941g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210323.5668 141:c (Yutaka Maeda)
  20210324.0350 14.160g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210324.0363 14.164g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210324.0376 14.118g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210324.0833 14.18C  (Eddy Muyllaert)
  20210324.7499 13.972g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210324.7511 13.969g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210324.7523 14.086g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210325.3611 13.941g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210325.3623 13.829g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210325.3636 13.884g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210325.3959 13.842zg  (Zwicky Transient Facility Lasair (Masci+ 2019))
  20210325.5702 137:cG (Yutaka Maeda)
  20210325.8444 13.978g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210325.8456 13.925g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210325.8468 13.952g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210325.9912 13.935g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210325.9925 13.840g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210325.9937 13.942g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210326.0889 13.917g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210326.0902 13.886g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210326.0915 13.919g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210326.2574 13.909g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210326.2587 13.904g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210326.2600 13.916g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210326.5567 138:c (Yutaka Maeda)
  20210329.8569 13.478g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210329.8581 13.586g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210329.8593 13.520g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210330.0451 13.594g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210330.0464 13.533g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210330.0476 13.470g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210330.2817 14.121zg  (Zwicky Transient Facility Lasair (Masci+ 2019))
  20210330.8958  139  (Eddy Muyllaert)
  20210331.0459 13.547g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210331.0471 13.544g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210331.0483 13.455g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210401.1833 12.820g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210401.1846 12.815g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210401.1859 12.825g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210401.1872 12.821g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210401.1885 12.836g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210401.1897 12.860g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210401.2956 13.014zr  (Zwicky Transient Facility Lasair (Masci+ 2019))
  20210401.9021  128  (Eddy Muyllaert)
  20210402.2414 12.858g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210402.2427 12.847g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210402.2440 12.836g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210402.442   128  (Rod Stubbings)
  20210403.2960 14.119zg  (Zwicky Transient Facility Lasair (Masci+ 2019))
  20210403.4232 13.295g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210403.4244 13.313g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210403.4257 13.285g  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
  20210403.453   128  (Rod Stubbings)