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Present Understanding of the Light Curves of Symbiotic Binaries.
- Source :
- Astrophysics & Space Science; Apr2005, Vol. 296 Issue 1-4, p421-425, 5p
- Publication Year :
- 2005
-
Abstract
- We explain a complex behaviour of the light curves (LC) of symbiotic binaries on the basis of their spectral energy distribution (SED) in the optical domain. During quiescent phases we observe a wave-like variation of the optical light as a function of orbital phase. This is produced by the orbitally-related variation of the emission measure (EM) of the symbiotic nebula. During active phases this type of variability disappears, the continuum level increases by 2-3 magnitudes in U and, in the case of a highly inclined orbit, narrow minima - eclipses - in the LC can occur. These phenomena are connected with the creation of a cool pseudo-photosphere around the hot star, whose contribution is significant in the optical, while the nebula practically disappears. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0004640X
- Volume :
- 296
- Issue :
- 1-4
- Database :
- Complementary Index
- Journal :
- Astrophysics & Space Science
- Publication Type :
- Academic Journal
- Accession number :
- 16904998
- Full Text :
- https://doi.org/10.1007/s10509-005-4861-9