I have been a post-doc at Department of Astronomy of Beijing Normal University with the fellowship of National Astronomical Observatories of China (NAOC) Mega-science center since July of 2018. I obtained my Ph.D. in astrophysics from National Astronomical Observatories of China in June of 2018. My main research field is membership identification and dynamical evolution of open clusters and binary study. I am currently making research on the related topics by using the low- and medium-resolution spectroscopic survey data of LAMOST-Kepler project together with the GAIA data. The research contents are as follows,
1.Binary and binary population
Binary is an important probe for star formation, stellar evolution and galaxies evolution. In recent years, the Kepler/K2 mission and the LAMOST-Kepler/K2 Medium-Resolution Spectroscopic Survey (LKS-MRS) have obtained abundant of high-quality light curves and radial velocity curves, providing an excellent opportunity of studying eclipsing binaries and binary population. Now, we do some research about the eclipsing binaries in the LKS-MRS area. We try to obtain the orbital elements and stellar parameters of the target eclipsing binaries. On the other hand, we use the radial velocity curves to obtain the binary candidates, binary fraction and orbital elements distributions.
2.Binary fractions and dynamical evolutions of open clusters
Binaries in open clusters can promote dynamical evolutions of open clusters and shape the open clusters. Once we obtain the current dynamical state, such as binary fraction, mass function, mass, radius, degree of mass segregation, we can use the dynamical evolution model to constrain the initial binary fraction and initial mass function. Now, the LAMOST telescope has obtained low-resolution spectra of some member stars in a number of open clusters. From these spectra, we can obtain the metallicities of these open clusters. Based on the metallicities of open clusters we obtained, together with the Gaia photometric data, we can determine the fundamental parameters, binary fractions, mass functions, and dynamical states of these open clusters. Then, we can do some statistical analysis with this sample. In the following steps, we will use the dynamical evolution model to derive initial states of these open clusters.
E-mail:jxwang@nao.cas.cn