Bharat RatraDistinguished Professor
32A Cardwell Hall
Ph.D. Stanford University, 1986
M.S. Indian Institute of Technology, New Delhi, 1982
Cosmology and Astroparticle Physics
Developing models for the large-scale matter and radiation distributions in the universe. Testing these models by comparing their predictions to observational data, including the anisotropy in the cosmic microwave background radiation, and the mass correlation function.
We collaborate with the Kansas State University High Energy Physics Group.
- Department of Energy
- National Science Foundation
Recent Selected Publications
S. Crandall and B. Ratra (2015). Non-Gaussian error distribution of LMC distance moduli measurement. The Astrophysical Journal, 815, 87. [link]
O. Farooq, D. Mania, and B. Ratra (2015). Observational constraints on non-flat dynamical dark energy cosmological models. Astrophysics and Space Science ,357, 11. [link]
A. Pavlov, S. Westmoreland, K. Saaidi, and B. Ratra (2013). Nonflat time-variable dark energy cosmology. Physical Review D, 88, 123513 [link]
O. Farooq, S. Crandall, and B. Ratra (2013). Binned Hubble parameter measurements and the cosmological deceleration-acceleration transition. Physics Letters B, 726, 72-82. [link]
O. Farooq and B. Ratra (2013). Hubble parameter measurement constraints on the cosmological deceleration-acceleration transition redshift. The Astrophysical Journal Letters, 766, L7. [link]