Star systems form in the process of a cloud collapsing and coalescing into a rotating disk. Stars which have disks of material around them are useful to study because they can help astronomers better understand the process of stellar formation. This article describes a study of stars whose spectra show they are likely to have disks of material around them. The results of this study can give researchers a better understanding of how these systems evolve.
Copyright @2005-2015, National Astronomical Observatories, Chinese Academy of Sciences 20A Datun Road, Chaoyang District, Beijing, China Tel:010-64888708 E-mail: ccz@bao.ac.cn