Optical flare observed in the flaring gamma-ray QSO TXS 0646-176

Pursimo, Tapio; Djupvik, Anlaug A.; Ojha, Roopesh
The Astronomer's Telegram, No. 12293 (2018).


We report optical photometry of the QSO TXS 0646-176, obtained with the 2.56m Nordic Optical Telescope in La Palma, to look for any enhanced optical activity associated with a recent flare in the daily averaged gamma-ray flux (ATel#12252).