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Rachel Bean

Professor, Arts & Sciences Senior Associate Dean for Undergraduate Education

Space Sciences Building, Room 612


Professor Bean's work centers on extracting information about cosmological theories using observations of the cosmic microwave background (CMB) and large scale structure (galaxies and clusters of galaxies), in particular working to understand the nature of dark energy, the properties of gravity on cosmic scales and the fundamental origins of primordial inflation.

She is involved in a number of astronomical experiments: the LSST Dark Energy Science Collaboration (and led the collaboration from 2015-17), the Dark Energy Spectroscopic Instrument (DESI) science team, the NASA Euclid science team and the NASA WFIRST High Latitude Survey Science Investigation Team. She is also involved in preparations for the Simons Observatory and a Cornell-led facility, CCAT-prime.

Visit Professor Bean’s webpage for more information about her research and that of the students working in her group.

Research Focus


Theoretical cosmology and its ties to astrophysical observations.


  • Astronomy

Graduate Fields

  • Astronomy and Space Sciences
  • Physics


  • Cornell Center for Astrophysics and Planetary Science


* indicates paper first-authored by a graduate student in Professor Bean’s research group
J. Rhodes et al.,“Scientific Synergy Between LSST and Euclid” , ApJS doi:10.3847/1538-4365/aa96b0, arXiv:1710.08489.
*V. Calafut, R. Bean and B. Yu, “Cluster mislocation in kinematic Sunyaev-Zel’dovich (kSZ) effect extraction”, Phys. Rev. D 96, 123529 (2017), arXiv:1710.01755.
*G. Valogiannis and R. Bean, “Beyond delta: Tailoring marked statistics to reveal modified gravity” , Phys. Rev. D in press, arXiv:1708.05652.
*G. Valogiannis and R. Bean,“Efficient simulations of large scale structure in modified gravity cosmologies with COLA, Phys. Rev. D 95, 103515 (2017), arXiv:1612.06469.
*J. Byun, N. Agarwal, R. Bean, R. Holman, “Looking for non-Gaussianity in all the right places: A new basis for non-separable bispectra”, Phys. Rev. D 91, 123518 (2015), arXiv:1504.01394.
*E. Mueller, F. De Bernardis, R. Bean and M. Niemack,“ Constraints on massive neutrinos from the pairwise kinematic Sunyaev-Zel’dovich effect”, Phys. Rev. D 92, 063501 (2015), arXiv:1412.0592.
*J. Byun and R. Bean,“Non-Gaussian Shape Discrimination with Spectroscopic Galaxy Surveys”, Journal of Cosmology and Astroparticle Physics, 03 (2015), DOI:10.1088/1475-7516/2015/03/019, arXiv: 1409.5440
*E. Mueller, F. De Bernardis, R. Bean and M. Niemack,“Constraints on gravity and dark energy from the pairwise kinematic Sunyaev-Zeldovich effect ”, ApJ, Volume 808, Number 1 , arXiv:1408.6248.