XI Bulgarian Serbian Astronomical Conference, May 14-18, 2018, - - PowerPoint PPT Presentation

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XI Bulgarian Serbian Astronomical Conference, May 14-18, 2018, Belogradchik Components : Orbital period: P = 757.2 d (Fekel+ 2001) Eclipsing binary Photometric orbital variations: in quiescent state U 1.0 m B ~ 1.0 m , V

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XI Bulgarian – Serbian Astronomical Conference, May 14-18, 2018, Belogradchik

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Components: Photometric orbital variations: in quiescent state U ≥ 1.0mB ~ 1.0m, V ~ 1.0m (Skopal+ 2012) Orbital period: P = 757.2d (Fekel+ 2001) Active phases: many active phases on different time scales. Eclipsing binary

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Since June 2009 satellite components indicating bipolar collimated outflow were observed. from Skopal, Tomov& Tomova (2013)

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18.07.2013 07.05.2012 21.04.2011 22.12.2010 28.08.2010 22.10.2010 05.06.2009 log(Flux) + const. 02.01.2013 03.11.2012 30.07.2015 24.08.2015 10.08.2016 21.05.2013

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Schematic model of the region around the hot component during a recurrent strong

utburst

Schematic model in the plane perpendicular to the orbital plane

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COLLIMATED EJECTION

from Skopal, Sekeras, Tomov+ (2014)

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COLLIMATED EJECTION

from Skopal+ (2017)

Julian date – 2 400 000

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Date

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