Resolved UBVRI photometry of RW Aur binary was performed on November 13/14, 2014 during the deep dimming of RW Aur with a newly installed 2.5 meter telescope of the Caucasus observatory of Lomonosov Moscow State University at the mount Shatzhatmaz. At that moment RW Aur A was ≃3m fainter than in November 1994 in all spectral bands. We explain the current RW Aur A dimming as a result of eclipse of the star by dust particles with size >1μm. We found that RW Aur B is also a variable star: it was brighter than 20 years ago at 0.7m in each of UBVRI band (gray brightening).
@article{arxiv.1412.7661,
title = {Resolved photometry of the binary components of RW Aur},
author = {S. Antipin and A. Belinski and A. Cherepashchuk and D. Cherjasov and A. Dodin and I. Gorbunov and S. Lamzin and M. Kornilov and V. Kornilov and S. Potanin and B. Safonov and V. Senik and N. Shatsky and O. Voziakova},
journal= {arXiv preprint arXiv:1412.7661},
year = {2014}
}