An investigation of the eclipsing symbiotic binary BF Cyg during a period of activity after 2014
Abstract
The symbiotic system BF Cyg is an eclipsing binary. It flared in 2006 and in 2016 its optical brightness was in its fifth orbital minimum (eclipse) from the beginning of the eruption. We investigated the behaviour of the brightness during this minimum and considered the evolution of the accretion structure surrounding the outbursting compact object. We obtained the basic parameters of this structure from UBVR_{C}I_{C} data at the time of the fifth orbital minimum.
- Publication:
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Bulgarian Astronomical Journal
- Pub Date:
- February 2019
- Bibcode:
- 2019BlgAJ..30...60T
- Keywords:
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- accretion;
- accretion disks;
- binaries: symbiotic;
- stars: activity;
- stars: individual: BF Cygni