YY Gem Light Curves for Session #4
This web page shows individual YY Gem light curves for the official monitoring interval of this session: Jan 6, 17 UT to Jan 7, 17 UT.

Link to my Analysis of Session #4 LCs (at bottom of this web page)  

Summary

Main flare at 02.1 UT, ~ 660 mmag (B) to 150 mmag (i'). Other flares at 03.0 and 03.9 UT. OOT sinusoid convincingly present.

YYYYMMDD    JD start - JD end    Len[hr]  Band  Observer     Event    Flares                  Sine Amp      Comments 

2012.01.07  5934.078 - 5934.123   1.1 hr   B    Yada         OOT      no flares               none          Too cloudy for science return
2012.01.07  5933.640 - 5933.811   4.1 hrs  V    Foote C      OOT      no flares               none          Uneventful
2012.01.07  5933.640 - 5933.811   4.0 hrs  Rc   Foote C      OOT      no flares               none          Uneventful
2012.01.07  5933.641 - 5933.807   4.0 hrs  Ic   Foote J      OOT      no flares               none          Uneventful
2012.01.07  5933.642 - 5933.814   4.1 hrs  B    Foote J      OOT      no flares               none          Uneventful
2012.01.07  5933.566 - 5934.081  12.4 hrs  g'   Gary         S        double flare 530 mmag   4 mmag        Same flare seen by European observers
2012.01.07  5933.567 - 5934.078  12.3 hrs  r'   Gary         S        double flare 167 mmag   41 mmag       Same flare seen by European observers
2012.01.07  5933.568 - 5934.079  12.3 hrs  i'   Gary         S        double flare 149 mmag   25 mmag       Same flare seen by European observers
2012.01.07  5933.569 - 5934.080  12.3 hrs  z'   Gary         S        double flare  85 mmag   14 mmag       Same flare seen by European observers
2012.01.06  5933.335 - 5933.717   9.5 hrs  V    Gregorio     P        3 flares 480 mmag       33 ± 1 mmag   OOT not high (?)
2012.01.06  5933.318 - 5933.618   7.2 hrs  B    Zambelli     P        2 flares 660 mmag       n/a           OOT ~ 80 mmag high
2012.01.06  5933.322 - 5933.617   7.1 hrs  V    Zambelli     P        2 flares 430 mmag       n/a           OOT ~ 30 mmag high
2012.01.06  5933.243 - 5933.736  11.8 hrs  Rs   Srdoc        P        3 flares 150 mmag       16 ± 1 mmag   OOT 0.3 mag high (?)



Note: Clouds were a persistent problem and eventually forced an abort.



   spo  


   spo  


  spo  


  spo  

       
  oot  v2614 (fixed AMC = -6.9 mmag/airmass) 

 
   oot   AMC = -6.2 mmag/airmass (v2622)

 
   oot   AMC = -5.0 mmag/airmass (v2627)

 
   oot   AMC = -3.8 mmag/airmass (v2630)


 
  spo   Note a main flare and 4 smaller ones following.


  spo  Flare is 660 mmag. Note smaller flare supeimposed on the decay part of the big flare (present at all bands).


   spo  

 
  spo  Note a smaller flare during decay of main flare. I don't understand why the OOT R-mag is so much brighter than the expected 8.151.

Combining and Analyzing All of the Above (Session #4):


All Session #4 LC are plotted on one graph.


Zoom of the flare.


Flare brightness decreases with wavelength in a uniform manner.


As we showed using feasibility LC data the "primary" transit is shallower than the "secondary." Still a mystery.

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WebMaster: B. Gary.  Nothing on this web page is copyrighted. This site opened:  2012.01.07.  Last Update:  2012.06.30, 01:35 UT