Research Interests:

Galaxy Groups and Clusters

Biographical Sketch:

Professor Xu received his Ph.D. degree in Physics in 1998 at Shanghai Jiao Tong University, after he finished his thesis work on X-ray study of galaxy clusters at the University of Tokyo, Japan, as a government exchange student supported by the Monbusho Scholarship. From 2000 to 2001 he worked as a post- doctorial research scientist at Columbia University, USA, and led a high quality X-ray spectroscopic study of the early-type galaxy NGC 4636. His research field covers multi-band study of galaxies and galaxy clusters, low frequency radio experiment and observation of cosmic reionization era and first generation celestial objects, and atomic astrophysics.

Selected Publications:

(1) Li, W., Xu, H.*, Ma, Z., Hu, D., Zhu, Z., Shan, C., Wang, J., Gu, J., Zheng, D., Lian, X., Zheng, Q., Wang, Y., Zhu, J., & Wu, X., Contribution of Radio Halos to the Foreground for SKA EoR Experiments, ApJ, 2019, accepted

(2) Li, W., Xu, H.*, Ma, Z., Zhu, R., Hu, D., Zhu, Z., Gu, J., Shan, C., Zhu, J., & Wu, X.-P., Separating the EoR signal with a convolutional denoising autoencoder: a deep-learning-based method, MNRAS, 2019, 485, 2628-2637

(3) Ma, Z., Xu, H.*, Zhu, J., Hu, D., Li, W., Shan, C., Zhu, Z., Gu, L., Li, J., Liu, C., & Wu, X., A Machine Learning Based Morphological Classification of 14,245 Radio AGNs Selected from the Best-Heckman Sample, ApJS, 2019, 240, 34

(4) Hu, D., Xu, H.*, Kang, X., Li, W., Zhu, Z., Ma, Z., Shan, C., Zhang, Z., Gu, L., Liu, C., Zheng, Q., & Wu, X.-P., A Study of the Merger History of the Galaxy Group HCG 62 Based on X-Ray Observations and Smoothed Particle Hydrodynamic Simulations, ApJ, 2019, 870, 61

(5) Zhu, Z., Xu, H.^*, Wang, J., Gu, J., Li, W., Hu, D., Zhang, C., Gu, L., An, T., Liu, C., Zhang, Z., Zhu, J., & Wu, X.-P., A Chandra Study of Radial Temperature Profiles of the Intra-Cluster Medium in 50 Galaxy Clusters, ApJ, 2016, 816, 54