Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aj....106..284d&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 106, no. 1, p. 284-297.
Astronomy and Astrophysics
Astronomy
25
Astronomical Photometry, Astronomical Spectroscopy, Binary Stars, Stellar Mass, Symbiotic Stars, White Dwarf Stars, Giant Stars, Hercules Nova, Near Infrared Radiation, Stellar Color
Scientific paper
We present an analysis of new and existing photometric and spectroscopic observations of the symbiotic binary V443 Herculis. This binary system consists of a normal M5 giant and a hot compact star. These two objects have comparable luminosities: about 1500 solar for the M5 giant and about 1000 solar for the compact star. We identify three nebular regions in this binary: a small, highly ionized volume surrounding the hot component, a modestly ionized shell close to the red giant photosphere, and a less dense region of intermediate ionization encompassing both binary components. The system parameters for V443 Her suggest the hot component currently declines from a symbiotic nova eruption.
Dobrzycka Danuta
Kenyon Scott. J.
Mikolajewska Joanna
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