Contact Information
1002 W. Green St.
Urbana, IL
Research Interests
Observational Cosmology
Quasars and Active Galactic Nuclei
Galaxy Formation and Evolution
Surveys and Time-Domain Science
Research Description
I am an extragalactic observer. I mainly work on a range of topics centered on quasars and supermassive black holes (SMBHs), to understand the physics and evolution of these exotic objects in the cosmological context. Specifically, I work on the large-scale structure traced by quasars, the demography of SMBHs as a function of cosmic time, the phenomenology and physics of black hole accretion, and the co-evolution of black holes and host galaxies. I use multi-wavelength survey data and dedicated observing programs to carry out these studies.
Education
Astronomy, PHD, Princeton University
Courses Taught
Additional Campus Affiliations
Associate Professor, National Center for Supercomputing Applications (NCSA)
External Links
Recent Publications
Burke, C. J., Baldassare, V. F., Liu, X., Foley, R. J., Shen, Y., Palmese, A., Guo, H., Herner, K., Abbott, T. M. C., Aguena, M., Allam, S., Avila, S., Bertin, E., Brooks, D., Carnero Rosell, A., Carrasco Kind, M., Carretero, J., Da Costa, L. N., De Vicente, J., ... Walker, A. R. (2020). The Curious Case of PHL 293B: A Long-lived Transient in a Metal-poor Blue Compact Dwarf Galaxy. Astrophysical Journal Letters, 894(1), [L5]. https://doi.org/10.3847/2041-8213/ab88de
Guo, H., Shen, Y., He, Z., Wang, T., Liu, X., Wang, S., Sun, M., Yang, Q., Kong, M., & Sheng, Z. (2020). Understanding Broad Mg II Variability in Quasars with Photoionization: Implications for Reverberation Mapping and Changing-look Quasars. Astrophysical Journal, 888(2), [58]. https://doi.org/10.3847/1538-4357/ab5db0
Hwang, H. C., Shen, Y., Zakamska, N., & Liu, X. (2020). Varstrometry for Off-nucleus and Dual Subkiloparsec AGN (VODKA): Methodology and Initial Results with Gaia DR2. Astrophysical Journal, 888(2), [73]. https://doi.org/10.3847/1538-4357/ab5c1a
Lacy, M., Baum, S. A., Chandler, C. J., Chatterjee, S., Clarke, T. E., Deustua, S., English, J., Farnes, J., Gaensler, B. M., Gugliucci, N., Hallinan, G., Kent, B. R., Kimball, A., Law, C. J., Lazio, T. J. W., Marvil, J., Mao, S. A., Medlin, D., Mooley, K., ... Yoon, I. (2020). The Karl G. Jansky very large array sky survey (VLASS). Science case and survey design. Publications of the Astronomical Society of the Pacific, 132(1009), [035001]. https://doi.org/10.1088/1538-3873/ab63eb
Runnoe, J. C., Cales, S., Ruan, J. J., Eracleous, M., Anderson, S. F., Shen, Y., Green, P. J., Morganson, E., LaMassa, S., Greene, J. E., Dwelly, T., Schneider, D. P., Merloni, A., Georgakakis, A., & Roman-Lopes, A. (2020). Now you see it, now you don't: The disappearing central engine of the quasar J1011+5442. Monthly Notices of the Royal Astronomical Society: Letters, 455(2), 1691-1701. https://doi.org/10.1093/mnras/stv2385
