AAS 201st Meeting, January, 2003
Session 40. Normal and Dwarf Novae
Poster, Tuesday, January 7, 2003, 9:20am-6:30pm, Exhibit Hall AB

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[40.12U] Re-Ananlysis of CN Ori, UZ Ser and X Leo with Composite Accretion Disk plus Photosphere Models

J. Urban, E.M. Sion (Villanova University)

We have carried out a further study of the behavior and physical properties of the dwarf novae UZ Ser, X Leo and CN Ori during quiescence, using archival IUE NEWSIPS spectra. Previous studies (Henry and Sion 2001; Urban et al. 2001) determined the best-fitting white dwarf models and best-fitting accretion disks to the quiecent spectra but did not use combinations of disks and photospheres along with the best distance estimates. We have re-ananlyzed the three systems with composite disk plus photosphere models and present the results along witht their implications..

This work was supported by NSF grant AST9901955 and a summer research grant from the NASA Delaware Space Grant Consortium

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