Evidence of optical flares in quiescent SXTs
We present the results of optical fast photometry of five SXTs in quiescence: V404 Cyg, A 0620--00, J 0422+32, GS 2000+25 and Cen X--4 and report the evidence of fast optical variations with timescales from minutes to a few hours and amplitudes from 0.06 to 0.6 mag, superimposed on the classical ellipsoidal light curve. We find no coherent
Zurita, C. et al.
Fecha de publicación:
1
2002