Volume 366, Number 1, January IV 2001
|Page(s)||157 - 165|
|Section||Interstellar and circumstellar matter|
|Published online||15 January 2001|
What mimics the reflection effect in symbiotic binaries?*
Astronomical Institute, Slovak Academy of Sciences, 059 60 Tatranská Lomnica, Slovakia
Accepted: 19 October 2000
We discuss the origin of a periodic wave-like variation as a function of the orbital phase observed in the light curves (LC) of symbiotic stars. It is shown that this type of variability cannot be ascribed to a reflection effect. For example, the observed amplitudes of the LCs are far larger than those calculated within a model of the reflection effect. Here, the nature of the orbitally related changes in the optical continuum is outlined within an ionization model of symbiotic binaries.
Key words: stars: binaries: symbiotic
© ESO, 2001
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