FUSE Observations of the Dwarf Novae UU Aql, BV Cen, and CH UMa in Quiescence - AstrophysicsReportar como inadecuado




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Abstract: We report on FUSE spectra of three U Gem-type, long period, dwarf novae, UUAql, BV Cen and CH UMa taken during their quiescence intervals. We discuss theline identifications in their spectra and attempt to characterize the sourcesof their FUV flux distribution. Archival IUE spectrum of CH UMa and BV Cen inquiescence were identified as having a matching flux level with the FUSEspectra and these were combined with each FUSE spectrum to broaden thewavelength coverage and further constrain model fits. Multi-component syntheticspectral fits from our model grids, consisting of single temperature whitedwarfs, two-temperature white dwarfs, accretion disks and white dwarfs plusaccretion disks, were applied to the FUSE spectra alone and to the combinedFUSE + IUE spectra. We present the results of our model analyses and theirimplications.



Autor: Edward M. Sion, Patrick Godon, Fuhua Cheng, Paula Szkody

Fuente: https://arxiv.org/







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