[vsnet-alert 23920] Re: Gaia19fdx: three rebrightenings?

[Patrick Schmeer pasc1312-aavso@yahoo.de via vsnet-alert]

 Gaia19fdx (UGWZ:)
https://www.aavso.org/vsx/index.php?view=detail.top&oid=1499817
 
Another rebrightening occurred on January 31, according to
recent ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S
and Kochanek et al. 2017PASP..129j4502K) data:
https://asas-sn.osu.edu/light_curves/3e7d0a10-06e7-498c-a4cf-8f7418bb4fce
 
Regards,
Patrick
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     Am Sonntag, 26. Januar 2020, 22:05:15 MEZ hat Patrick Schmeer pasc1312-aavso at yahoo.de via vsnet-alert <vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp> Folgendes geschrieben:  
 
  Gaia19fdx (UGWZ:)
https://www.aavso.org/vsx/index.php?view=detail.top&oid=1499817
 
Recent ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S
and Kochanek et al. 2017PASP..129j4502K) data and light curve:
https://asas-sn.osu.edu/light_curves/02c7f8cc-3172-4ab0-91f6-e84e5ade1cad
 
Apparently three rebrightenings: 2020 January 2, 18–19, and 24.

Follow-up observations are required.
 
Clear skies,
Patrick
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    Am Samstag, 7. Dezember 2019, 01:29:11 MEZ hat Taichi Kato <tkato at kusastro.kyoto-u.ac.jp> Folgendes geschrieben:  
 
 Gaia19fdx: SU UMa-type dwarf nova

  Crimean Astrophys. Obs. team reported observations
between Nov. 24 and Dec. 5.  The object showed superhumps
on Nov. 24 and 25, but the duration of observations
was too short to determine the period.
The object faded from the superoutburst between
Dec. 2 and 5.  Observations on Dec. 1-2 showed
short-term modulations with a period of ~0.02 d,
which may have been a harmonic of the superhump period.

  The object was observed earlier (Nov. 19-21)
by Tonny Vanmunster and Itoh-san without detecting
superhumps.

  The preferred superhump period from the available
observations is 0.070 d, but this requires confirmation
by further observations.