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25 April 2024

» arxiv » 1412.7661

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Resolved photometry of the binary components of RW Aur
S. Antipin ; A. Belinski ; A. Cherepashchuk ; D. Cherjasov ; A. Dodin ; I. Gorbunov ; S. Lamzin ; M. Kornilov ; V. Kornilov ; S. Potanin ; B. Safonov ; V. Senik ; N. Shatsky ; O. Voziakova ;
Date:	24 Dec 2014
Abstract:	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 $simeq 3^m$ 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 $>1 mu m.$ We found that RW Aur B is also a variable star: it was brighter than 20 years ago at $0.7^m$ in each of UBVRI band (gray brightening).
Source:	arXiv, 1412.7661
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