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 and her research group are involved in a number of astronomical experiments. This includes the large scale structure experiments: the Vera Rubin Telescope Dark Energy Science Collaboration, the Dark Energy Spectroscopic Instrument (DESI) science team, the NASA Euclid science team and the NASA Roman High Latitude Survey Science Investigation Team. She is also involved in CMB/sub-mm experiments including the Atacama Cosmology Telescope (ACT), the Simons Observatory, CMB-S4 and the Cornell-led FYST.
Visit Professor Bean’s webpage for more information about her research and that of the students working in her group.
Astronomy and Space Sciences
Cornell Center for Astrophysics and Planetary Science
Theoretical cosmology and its ties to astrophysical observations.
* indicates paper first-authored by a graduate student in Professor Bean’s research group
R. Liu, G. Valogiannis*, N. Battaglia and R. Bean, “Constraints on f(R) and nDGP Modified Gravity Model Parameters with Cluster Abundances and Galaxy Clustering”, PRD in press, arXiv:2101.08728.
V. Calafut*, P. A. Gallardo, E. M. Vavagiakis, S. Amodeo, et al., “The Atacama Cosmology Telescope: Detection of the Pairwise Kinematic Sunyaev-Zel’dovich Effect with SDSS DR15 Galaxies”, Phys.Rev.D 104 (2021) 4, 043502, arXiv:2101.08374.
E. M. Vavagiakis, P. A. Gallardo, V. Calafut*, S. Amodeo, et al., The Atacama Cosmology Telescope: Probing the Baryon Content of SDSS DR15 Galaxies with the Thermal and Kinematic Sunyaev-Zel’dovich Effects”, Phys.Rev.D 104 (2021) 4, 043503, arXiv:2101.08373.
C. Wilson* and R. Bean, “Testing f(R) Gravity With Scale Dependent Cosmic Void Velocity Profiles”, Phys. Rev. D 104, 023512 (2021), arXiv: 2012.05925.
A. Aviles, G. Valogiannis*, M. A. Rodriguez-Mez, J. L. Cervantes-Cota, B. Li and R. Bean, “Redshift space power spectrum beyond Einstein-de Sitter kernels, JCAP 04 (2021) 039, arXiv: 2012.05077.
S. Alam et al, “Testing the theory of gravity with DESI: estimators, predictions and simulation requirements”, JCAP in press, arXiv: 2011.05771. (Bean and B. Li co-coordinated/co-edited in DESI C3 working group. G. Valogiannis also a co-author).
*G. Valogiannis, R. Bean and A. Aviles “An accurate perturbative approach to redshift space clustering of biased tracers in modified gravity”, JCAP 01 (2020) 055, arXiv:1909.05261.
*G. Valogiannis and R. Bean, “Convolution Lagrangian Perturbation Theory for biased tracers beyond general relativity”, Phys. Rev. D 99, 063526 (2019), arXiv:1901:03763.