, Volume 48, Issue 9, pp 742-750

The symbiotic system Z Andromedae during the flare of 2000–2002

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Optical and infrared photometric observations of the classical symbiotic binary Z And obtained in quiescent and active phases in 1999–2002 are analyzed. RI photometric data from the literature are used to estimate the parameters of the binary system’s components. The data as a whole suggest that the hot compact component expands and the emission measure of the surrounding nebula grows during the flare. Possible interpretations of the flare based on several mechanisms are considered.

Translated from Astronomicheski \(\overset{\lower0.5em\hbox{\(\smash{\scriptscriptstyle\smile}\)}}{l} \) Zhurnal, Vol. 81, No. 9, 2004, pp. 816–825.
Original Russian Text Copyright © 2004 by Taranova, Tomov, Tomova, Shenavrin.