Abstract
In this paper, some CCD spectra of 6 cataclysmic variables: AB Boo, T CrB, UX UMa, AH Her, Z Cam, V426 Oph and 3 related objects: Leo3, UMa3 and EG UMa are presented. We also observed 5 late-type stars: 3 Dra, ν Vir, ψ Leo, 34 Boo, and 36 Com in order to provide comparison with the late-type component of the program systems. The observations were made using the 2.16 m telescope of Bejing Observatory with a Cassergrain spectrograph on 1997-04-15/17 at the Xinglong Station. The CCD spectra were obtained with a low resolution and a dispersion of 1.2Å/pixel. The spectral region covered is from 5920Å to 7072Å, and from 7950Å to 9180Å for all the program stars and only 3390–8380Å for AH Her. Representative spectra are given for each object. The equivalent width (EW) and FWHM of H αand CaII triplet lines were determined. The radial velocities for 9 program stars were also determined. Implications of our results are discussed.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
