The Bright Optical Transient OT J122221.6-311525.
Update (Mar 21, 2013):
The object is wobbling around V=17.7. The variability is quite strong, and the period of primary modulation is nearly the same, ~110.6 min. However, recently a new, longer variability has appeared. It produced a relatively strong peak in the power spectrum. The period of this modulation is ~203.7 min.
Update (Mar 12, 2013):
We have proceeded with time-resolved photometric observations. It seems the system has reached its quiescent level even though a quite strong night to night variability is observed. The modulation is still strong, but its behaviour is now more complex. Nevertheless, the period is nearly the same.
Previous updates can be seen here.
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Current light curves:
Current Power Spectrum (JD 2456357 – 2456368):
Current Folded Light Curves (JD 2456357 – 2456368):
Spectra:
