HD49798 is a hydrogen depleted subdwarf 06 star and has an X-ray pulsating companion(RX J0648.0-4418).The X-ray pulsatin......

We present new charge-coupled device (CCD) photometry for the triple star EF Draconis,obtained in 2009 and 2011.Using th......

IO Cnc was classified to be a new G-type(G0)W UMa-type eclipsing binary system.Our first multicolor photometric solution......

...

By analyzing two sets of complete BV Rc Ic light curves for V342 UMa and three sets of complete BV Rc Ic light curves fo......

A photometric analysis and evolutionary stages of the contact binary V2790 Ori are presented.The BV RC observations were......

We present a spectroscopic study of two polar systems, V834 Cen and MR Ser observed with IUE (International Ultraviolet ......