The results of optical spectroscopic monitoring observations of a young binary system, Z CMa, are presented in this stud......

Results from optical CCD photometric observations of 13 pre-main-sequence stars collected during the period from Februar......

We present a detailed spectroscopic study of pre-main sequence star V565 Mon,which is the illuminating star of the Parsa......

This paper reports results from the first long-term BV(RI)c photometric CCD observations of three variable pre-main-sequ......

Using long-term optical, ultraviolet(UV) and X-ray data, we present a study of a classical T Tauri star CV Cha. The V-ba......

We present an analysis of the optical observations of Herbig Ae/Be(HAeBe)star V1686 Cyg,which is associated with a small......