The spectral energy distribution and nature of the symbiotic system AS 296 in outburst

Details The spectral energy distribution and nature of the symbiotic system AS 296 in outburst The spectral energy distribution and nature of the symbiotic system AS 296 in outburst

Jul 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.239..273m&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 239, July 15, 1989, p. 273-280.

Physics

7

Spectral Energy Distribution, Stellar Mass Accretion, Stellar Physics, Stellar Spectrophotometry, Symbiotic Stars, Novae, Stellar Luminosity, Stellar Magnitude, Stellar Spectra, White Dwarf Stars

Scientific paper

Photometry at 0.36-5 microns is reported for the symbiotic star AS 296 about 2 months after the onset of the first recorded novalike outburst. Analysis of published preoutburst photometry provides evidence for the presence of an accreting white dwarf of high luminosity. This information, together with the new observations, is used to eliminate various mechanisms suggested for outbursts in symbiotic objects. It is shown that hydrogen burning of accreted material can produce the white dwarf luminosity during quiescence. The outburst is then the result of a thermonuclear runaway in the unburnt material.

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