An improved Technique to Explore Disk Accretion Process in PMS Stars

Abstract

The low mass PMS stars are found to be surrounded by thick, flared accretion disk and the disk material is supposed to be funneled onto the stellar surface by strong and predominately dipolar magnetic field. We have developed a simple technique which uses medium resolution optical spectrum and gives reliable disk accretion rate. In this paper, we briefly describe the technique and also present the preliminary results obtained.