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Personal profile

Personal profile

Professor Liu received her B.A. and M.S. in Physics from Tsinghua University in 2004 and 2006 and her M.A. and Ph.D in Astrophysical Sciences from Princeton University in 2008 and 2010. After that she was a NASA Einstein fellow at Harvard University and then a Hubble fellow at the University of California, Los Angeles before joining UIUC as an assistant professor in 2015. Her research interests include astronomical surveys and data science, origin and cosmic evolution of galaxies and galactic nuclei, and the nature of black holes and gravity.

Research Interests

Astronomical survey and data science
Origin and cosmic evolution of galaxies and galactic nuclei
The nature of black holes and gravity
Machine learning applications in Astronomy

Professional Information

Professor Liu studies supermassive black holes that live in the hearts of galaxies across the universe. Understanding how black holes formed and evolved into their present forms has been a central theme in modern astronomy. The next decade will see an array of new facilities and large surveys aimed at addressing fundamental questions centered around this theme. The Liu group develops new observational tools and data analysis techniques in the context of large astronomical surveys. The goal is to understand black holes' origins, growth, how they may have contributed to the evolution of galaxies, and how we can use them as astrophysical probes for fundamental physics.  

Education

Ph.D. in Astrophysical Sciences, Princeton University, 2010
M.A. in Astrophysical Sciences, Princeton University, 2008
M.S. in Physics, Tsinghua University, 2006
B.S. in Physics, Tsinghua University, 2004

Honors & Awards

Teaching

Office Address

210 Astronomy
1002 W. Green St.
Urbana, IL

Office Phone

Education/Academic qualification

Astrophysical Sciences, PhD, Princeton University

Sep 2006Aug 31 2010

Award Date: Sep 27 2010

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Research Output

Spectral energy distributions of candidate periodically variable quasars: Testing the binary black hole hypothesis

Guo, H., Liu, X., Tayyaba, Z. & Liao, W. T., Feb 1 2020, In : Monthly Notices of the Royal Astronomical Society. 492, 2, p. 2910-2923 14 p.

Research output: Contribution to journalArticle

  • Understanding Broad Mg II Variability in Quasars with Photoionization: Implications for Reverberation Mapping and Changing-look Quasars

    Guo, H., Shen, Y., He, Z., Wang, T., Liu, X., Wang, S., Sun, M., Yang, Q., Kong, M. & Sheng, Z., Jan 10 2020, In : Astrophysical Journal. 888, 2, 58.

    Research output: Contribution to journalArticle

  • Varstrometry for Off-nucleus and Dual Subkiloparsec AGN (VODKA): Methodology and Initial Results with Gaia DR2

    Hwang, H. C., Shen, Y., Zakamska, N. & Liu, X., Jan 10 2020, In : Astrophysical Journal. 888, 2, 73.

    Research output: Contribution to journalArticle

  • Active Galactic Nucleus Pairs from the Sloan Digital Sky Survey. III. Chandra X-Ray Observations Unveil Obscured Double Nuclei

    Hou, M., Liu, X., Guo, H., Li, Z., Shen, Y. & Green, P. J., Sep 1 2019, In : Astrophysical Journal. 882, 1, 41.

    Research output: Contribution to journalArticle

  • An Unusual Mid-infrared Flare in a Type 2 AGN: An Obscured Turning-on AGN or Tidal Disruption Event?

    Yang, Q., Shen, Y., Liu, X., Wu, X. B., Jiang, L., Shangguan, J., Graham, M. J. & Yao, S., Nov 10 2019, In : Astrophysical Journal. 885, 2, 110.

    Research output: Contribution to journalArticle