CAOSP abstracts, Volume: 31, No.: 2, year: 2001
- Author(s): SKOPAL, A.
- Journal: Contributions of the Astronomical Observatory Skalnate Pleso, vol. 31, no. 2, p. 119-128.
- Date: 10/2001
- Title: Notices to investigation of symbiotic binaries. II. Reconstruction of the spectral energy distribution.
- Keyword(s): STARS: BINARIES, SYMBIOTICS, STARS: INDIVIDUAL, AX PER, BROAD-BAND PHOTOMETRY, IUE LOW-RESOLUTION SPECTROSCOPY
- Pages: 119 -- 128
Abstract:
We present a simple method on how to reconstruct the spectral energy
distribution (SED) in the continuum of symbiotic binaries between
0.12 and 5 micrometers.
The reconstruction is based on the broad-band optical and infrared
UBVRI and JHKLM photometry and the IUE (International Ultraviolet
Explorer) low-resolution spectroscopy.
The observed SED is fitted by a three component model of radiation.
Two stellar components are approximated by Planck functions, while
the nebular spectrum is represented by the free-bound and free-free
emission from hydrogen.
Based on the modeled SED, basic physical parameters -- colour
temperatures of the stellar objects, electron temperature of
the nebula and its emission measure and the observed luminosities
of individual components of radiation -- can be determined.
The method is demonstrated on the symbiotic star AX Persei.
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