1. K-State home
  2. »Physics
  3. »People
  4. »Tenure-Track Faculty
  5. »Bharat Ratra

Department of Physics

Bharat Ratra

Bharat RatraDistinguished Professor
32A Cardwell Hall
(785) 532-6265
ratra@phys.ksu.edu
Group Webpage
Personal Webpage

Support K-State Cosmology

Ph.D. Stanford University, 1986
M.S. Indian Institute of Technology, New Delhi, 1982

Research Area

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.

Research Support

  • 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]

full publication list

Media Bio