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OEJV#	Název publikace	Autor	Datum vložení
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0199	OBSERVATIONS OF THE OUTBURST OF V694 MON IN 2019. 482 kB	L. Kondratyeva, I. Reva, M. Krugov, G. Aimanova, M.Nizovkina, B. Omar	2019-07-11
	In the autumn of 2018, the object V694 Mon underwent the new outburst. It began in only two years after the previous flash in 2016 despite the fact that during the last 25 years the interval between flashes equaled to 1860 days. In the Fesenkov Astrophysical Institute (FAI) of the Republic of Kazakhstan photometric and high resolution specroscopic observations were carried out since January 25, 2019 till April 14 2019. Maximal values of brightness B=9.110.01 mag, V=8.740.01 mag and Rc=8.320.02 mag, obtained during this outburst are compared with the maxima of previous flashes. The uniqueness of this active stage is the disappearance of the broad high-velocity absorptions in the profiles of emission lines. These absorptions are formed due to the high collimated jet, flowing out of the white dwarf and directed near to the line of sight. The high-velocity gas of the jet absorbs a continuum in the spectrum of the dwarf or/ and of the red giant. Disappearance of the broad high-velocity absorptions is possible if the inner accretion disk - the source of jet was evacuated during the outburst. Objekty Simbad: V694 Mon = MWC 560,		komentáře: 0

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