Resolved photometry of the binary components of RW Aur

2014/12/24 by S. Antipin, Antipin, S., A. Belinski +30
Physics and Astronomy · #Astrophysics and Star Formation Studies #FOS: Physical sciences #Gamma-ray bursts and supernovae #Solar and Stellar Astrophysics (astro-ph.SR) #Stellar, planetary, and galactic studies #astro-ph.SR

paper · pdf · doi:10.48550/arxiv.1412.7661

submitted to IBVS

arxiv created 2014/12/24 · openalex publication_date 2014/12/24 · arxiv updated 2014/12/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

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 ≃ 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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