RS Ophiuchi: Connections to the Symbiotic Variable AG Dra

Details RS Ophiuchi: Connections to the Symbiotic Variable AG Dra RS Ophiuchi: Connections to the Symbiotic Variable AG Dra

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aspc..401..338s&link_type=abstract

RS Ophiuchi (2006) and the Recurrent Nova Phenomenon ASP Conference Series, Vol. 401, proceedings of the conference held 12-14 J

Astronomy and Astrophysics

Astronomy

Scientific paper

AG Dra is a symbiotic variable bearing a number of similarities to the suspected emitting components in RS Oph among which are an irradiated red giant mass donor, metal poor, similarly long orbital periods, a hot accreting white dwarf irradiating an optically thick bright accretion disk. Both objects have been counted among the yellow symbiotic stars (Smith et al. 1996). We present NLTE models of white dwarf synthetic spectra and optically thick accretion disk spectra to model the FUSE, HST and IUE archival spectra of AG Dra, The spectra have been de-reddened and the model fitting carried out both with a fixed distance of 2500 pc and also with the distance as a free parameter. Preliminary results are discussed.

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