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arXiv · 1412.7661

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
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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 $>1 μm.$ 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).

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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. 2014-12-24. Resolved photometry of the binary components of RW Aur. https://arxiv.org/abs/1412.7661

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