A new outburst of Z Andromedae

Details A new outburst of Z Andromedae A new outburst of Z Andromedae

Jul 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984esasp.218..403v&link_type=abstract

In ESA 4th European IUE Conf. p 403-406 (SEE N84-35135 24-88)

Physics

2

Andromeda Constellation, Stellar Luminosity, Symbiosis, Variable Stars, Iue, Line Spectra, Stellar Mass Accretion, Stellar Mass Ejection

Scientific paper

The symbiotic star Z And, after a long period of quiescence underwent in March 1984 a luminosity brightening which could be the beginning of a new active phase of the star. From a preliminary analysis of the IUE observations made on April 6 the authors found a large decrease of the continuum temperature. The high ionization lines of He II, C IV and O III appear stonger, while N V remained nearly constant and, contrary to the expectation, O I weakened. This behaviour during outburst appears different from the UV variability observed during the preoutburst quiescent phase.

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