Feiyan Yang and Lei Xi 7 1 Pauley Heart Center, Division of Cardiology, Department of Internal Medicine, Virginia 8 Commonwealth University, Richmond, Virginia, USA 9 2 Department of Cardiology, Central Hospital of Wuhan, Wuhan, China 10 Total word count: 2523 11 *Address correspondence to: 12 Lei Xi, MD, FAHA 13 Associate Professor 14 Division of Cardiology, Box 980204 15 Virginia Commonwealth...

We present low resolution optical spectroscopy for six cataclysmic variable candidates and the old nova V888Cen. We confirm the classification as cataclysmic variable for LB 9963 and FQMon, while the other four candidates turn out to be different type of stars. We discuss the individual spectra and pay special attention to the mass transfer rate and disc temperature and density of the three cat...

Rakesh C. Kukreja, Ph.D. 15 Professor of Internal Medicine, Physiology & Biophysics, 16 Biochemistry & Molecular Biology 17 Eric Lipman Distinguished Chair of Cardiology 18 Scientific Director, Pauley Heart Center 19 Division of Cardiology, Box 980204 20 Virginia Commonwealth University 21 1101 East Marshall Street, Room 7-020D 22 Richmond, VA 23298-0204, U.S.A. 23 Phone: 804-628-5521 24 Fax: 8...