Stellar Spectra
Element Abundances
Chemical Evolution of Galaxy
Laboratory Astrophysics
Extrasolar planets

Prof. Zhao has been devoting himself to observational astronomy for over 20 years.
He has taken the lead in detailed quantitative analysis of chemical elements based on a large sample of high-resolution spectra of metal- poor dwarfs.
Prof. Zhao was the one who gave the new empirical formula of the influence of neutral hydrogen collision for NLTE analysis.
Meanwhile, he began the research of chemical abundance of extra-solar planetary systems, and found one extra-solar planet for the first time with the domestic telescope in China.
He got support from the National Science Fund for Distinguished Young Scholars in 1997.
Prof. Zhao was honored with the Second Prize of National Natural Science in 2008, as well as winner of the Science and Technology Award of the Ho Leung Ho Lee Foundation in 2010.

G. Zhao, L. Mashonkina, H.L.Yan, et al. Systematic Non-LTE Study of the -.6 ≤ [Fe/H] ≤ 0.2 F and G Dwarfs in the Solar Neighborhood. II. Abundance Patterns from Li to Eu. Astrophysical Journal, 2016, 833,225.
G. Zhao, Y. H. Zhao, Y. Q. Chu et al, LAMOST spectral survey — An overview, Research in Astronomy and Astrophysics, 2012, 12, 723
Y.J. Liu, B. Sato, G. Zhao et al. A Substellar Companion to the Intermediate-Mass Giant 11 Comae[J]. Astrophysical Journal, 2008, 672,553-557
X. X. Xue , H. W. Rix, G. Zhao, P. Re Fiorentin et al.,The Milky Way's Circular Velocity Curve to 60 kpc and an Estimate of the Dark Matter Halo Mass from the Kinematics of ~2400 SDSS Blue Horizontal-Branch Stars , Astrophysical Journal, 2008, 684, 1143
G. Zhao, Y. Q. Chen, J. R. Shi, et al., Stellar Abundance and Galactic Chemical Evolution through LAMOST Spectroscopic Survey, Chinese Journal of Astronomy and Astrophysics, 2006, 6, 265
G. Zhao, Y.Q. Chen, H.M. Qiu, Z.W. Li, Chemical Abundances of 15 Extrasolar Planet Host Stars, The Astronomical Journal, 2002, 124, 2224
G. Zhao, T. Gehren , Non-LTE analysis of neutral magnesium in cool stars, Astronomy and Astrophysics, 2000, 362, 1077
G. Zhao, K. Butler, T. Gehren, Non-LTE analysis of neutral magnesium in solar atmosphere, Astronomy and Astrophysics, 1998, 333, 219-230
G. Zhao , P. Magain, Abundances of neutron capture elements in metal-poor dwarfs I. Y and Zr, Astronomy and Astrophysics, 1991, 244, 425-432
G. Zhao, P. Magain, The chemical composition of the extreme halo stars. II. Green spectra of 20 dwarfs, Astronomy and Astrophysics, 1990, 238, 242-248