| Yun Wang | |
| Title: | Associate Professor |
| Awards: | Fellow of the American Physical Society |
| Regents' Award for Superior Research | |
| Education: | B.S. 1985 Tsinghua Univ., P.R. China |
| Ph.D. 1991 Carnegie-Mellon | |
| Office: | 327 Nielsen Hall |
| Phone: | 405-325-3961, ext. 36327 |
| Email: | |
| Research Home Page |
My research has focused on extracting fundamental physics from cosmological data, in particular, probing dark energy and early universe physics using supernovae (SNe), cosmic microwave background anisotropy (CMB), and cosmic large scale structure data.
Our Universe has been observed to be undergoing accelerated expansion today. The unknown reason for this cosmic acceleration is referred to as "dark energy". At present, we do not know whether it is a new energy component of the Universe with negative pressure, or a modification of Einstein's theory of gravity (i.e., general relativity). Solving the mystery of the nature of dark energy is the most important problem in cosmology today. Dark energy can be probed using various techniques, most notably, using Type la supernovae (SNe la) as cosmological standard candles. I have done fundamental work in the use of supernovae to probe dark energy. My work has ranged from survey strategy, optimal data analysis, to the modeling of weak lensing effects. In the last several years, I have focused on using galaxy redshift surveys to probe dark energy and test gravity theories.
I am involved with observational projects to probe dark energy from both space and ground. I am a member of the Wide-Field Infrared Survey Telescope (WFIRST) Science Definition Team, and a member of the LSST Supernova Science Collaboration. I served as the U.S. Representative on the Science Advisory Team for Euclid-NIS, and am now a member of the Euclid Consortium.
Representative Publications:
- Chia-Hsun Chuang, Yun Wang, "Measurements of H(z) and D(z) from the Two-Dimensional Two-Point Correlation Function of Sloan Digital Sky Survey Luminous Red Galaxies," MNRAS, in press (2012), arXiv:1102.2251
- Yun Wang, et al., "Designing a space-based galaxy redshift survey to probe dark energy," MNRAS 409, 737 (2010).
- Yun Wang, "Differentiating Dark Energy and Modified Gravity with Galaxy Redshift Surveys," JCAP 0805, 021 (2008).
- Yun Wang, and Pia Mukherjee, "Observational Constraints on Dark Energy and Cosmic Curvature," Phys. Rev. D 76, 103533 (2007).
- Yun Wang, and Max Tegmark, "Uncorrelated Measurements of the Cosmic Expansion History and Dark Energy from Supernovae," Phys. Rev. D 71, 103513 (2005).
- Pia Mukherjee, and Yun Wang, "Model-Independent Reconstruction of the Primordial Power Spectrum from WMAP Data," Astrophysical J. 599, 1 (2003).