@article {41773,
	title = {Optical follow-up of V404 Cyg during the current enhanced activity.},
	volume = {7650},
	year = {2015},
	month = {2015/06/1},
	pages = {1},
	abstract = {V404 Cyg is a known black hole Low mass X-ray binary with a late G-type companion, having a ~6.5 d orbital period. On June 15 18:32 UT Swift Burst Alert Telescope (BAT) was triggered due to the high X-ray activity of the system (Barthelmy et al.},
	keywords = {Binary, Black Hole, Request for Observations, Transient, Variables},
	url = {https://ui.adsabs.harvard.edu/abs/2015ATel.7650....1G},
	author = {Gazeas, K. and Vasilopoulos, G. and Petropoulou, M. and Sapountzis, K.}
}
