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Paper: Infrared spectroscopy of selected cataclysmic variables
Volume: 261, The Physics of Cataclysmic Variables and Related Objects
Page: 63
Authors: Mennickent, R. E.; Diaz, M.
Abstract: We present preliminary results of VLT/ISAAC infrared spectroscopy of a sample of dwarf novae including candidates for harboring sub-stellar companions. Synthesis of the IR spectral energy distribution (SED) was performed by fitting the observed spectrum with a power law continuum and a secondary star template. The application of such a spectral fitting procedure suggests that the 1.1--2.2 μ continuum shape in short-period cataclysmic variables is an useful indicator of the companion spectral type. We were able to identify the secondary star in VY Aqr, RZ Leo, CU Vel and HV Vir. We thank Sandy Leggett who provided the IR digital spectra of low mass red objects used in our SED models. We also acknowledge support by Grant Fondecyt 1000324 and Fundacion Andes C-13600/5.
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