I have been a Ph.D. student in the Group of Pulsating Variable Stars and Asteroseismology of the Department of Astronomy of Beijing Normal University since September of 2016. The main research area of mine is asteroseismology of pulsating stars and binary stars as the members of open clusters. Through analyzing assemble of Delta Scuti type variables in open clusters, we can obtain more accurate stellar parameters such as age, temperature, chemical element abundance, rotation etc., which can jointly be used to constrain the stellar evolution models of those cluster members, and further study the properties and evolutionary histories of clusters. Delta Scuti stars are good samples for asteroseismological research, but there are still difficulties in the oscillation mode identification. On the other hand, open cluster members have the same distance and age, as well as similar chemical composition, which will be helpful for identifying the pulsation modes. Some members of Delta Scuti stars are also binary system components, whose orbital parameters and additional stellar parameters such as the masses, radii, spot activities and so on can be obtained by modeling the light curves and radial velocity curves. Those parameters in conjunction with the results from the seismic analysis of Delta Scuti variables as cluster members can better constrain the stellar evolutions and seismic models. My current research is based on the data from both the Kepler satellite survey light curves, the LAMOST telescope spectroscopic survey data, and time-series photometric observations and spectroscopic observation data obtained with several national and international ground-based telescopes.
E-mail: niuhubiao@xao.ac.cn