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has gloss | eng: Symbiotic novae are slow irregular eruptive variable stars with very slow nova-like outbursts of amplitude 9-11 magnitudes. The symbiotic nova stays at maximum for one or a few decades, and then declines towards its original luminosity. Variables of this kind are double star systems with one red giant, that probably is a mira variable , and one white dwarf. The red giant fills its Roche lobe so that gas transfers to the white dwarf and accumulates until the nova-like outburst. The temperature at maximum is estimated to rise up to 200,000 K, caused by ignition of termonuclear fusion, similar to the energy source of novae, but dissimilar to the dwarf novae. The slow luminosity increase would then simply due to time needed for growth of the ionization front in the outburst. |
lexicalization | eng: Symbiotic nova |
instance of | c/Pulsating variables |
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