Professor Robert Crittenden
Biography
I was an undergraduate at the University of Maryland and received my PhD from Penn in 1993 working with Paul Steinhardt. After postdoctoral positions at Princeton University and CITA in Toronto, I went to Cambridge as a PPARC Advanced Fellow. I joined the ICG just after it was formed in 2002 as a Reader in Cosmology and was promoted to Professor of Cosmology in 2014.
My research primarily concerns understanding how structure in the Universe formed and evolved, through observations of the cosmic microwave background, the distribution of galaxies and weak gravitational lensing. I am possibly best known for studying how galaxies and the CMB are correlated through the integrated Sachs-Wolfe effect, which provides independent evidence for the existence of dark energy.
Research interests
Cosmology, Cosmic microwave background, Large scale structure, Dark energy, Early Universe, Magnetic fields.
Research outputs
2025
Forecasts for interacting dark energy with time-dependent momentum exchange
Cruickshank, N. J., Crittenden, R., Koyama, K., Bruni, M.
14 Oct 2025, In: Journal of Cosmology and Astroparticle Physics. 2025, 10, 25p., 052
Research output: Article
2024
Desi 2024: Reconstructing dark energy using Crossing Statistics with DESI DR1 BAO data
Calderon, R., Lodha, K., Shafieloo, A., Linder, E., Sohn, W., Mattia, A. d., Cervantes-Cota, J. L., Crittenden, R., Davis, T. M., Ishak, M., Kim, A. G., Matthewson, W., Niz, G., Park, S., Aguilar, J.,
15 Oct 2024, In: Journal of Cosmology and Astroparticle Physics. 2024, 10, 26p., 048
Research output: Article
A multitracer analysis for the eBOSS galaxy sample based on the effective field theory of large-scale structure
Zhao, R., Mu, X., Gsponer, R., Donald-McCann, J., Feng, Y., Zhang, W., Wang, Y., Zhao, G., Koyama, K., Bacon, D., Crittenden, R. G.
2 Jul 2024, In: Monthly Notices of the Royal Astronomical Society. 532, 1, p. 783–804
Research output: Article
Cosmological constraints on early dark energy from the full shape analysis of eBOSS DR16
Gsponer, R., Zhao, R., Donald-McCann, J., Bacon, D., Koyama, K., Crittenden, R., Simon, T., Mueller, E.
1 May 2024, In: Monthly Notices of the Royal Astronomical Society. 530, 3, p. 3075–3099
Research output: Article
2022
Momentum transfer models of interacting dark energy
Linton, M. S., Crittenden, R., Pourtsidou, A.
31 Aug 2022, In: Journal of Cosmology and Astroparticle Physics. 08, 075, 24p., 075
Research output: Article
2021
Testing the equivalence principle on cosmological scales using the odd multipoles of galaxy cross-power spectrum and bispectrum
Umeh, O., Koyama, K., Crittenden, R.
23 Aug 2021, In: Journal of Cosmology and Astroparticle Physics. 2021, 08, 29p., 049
Research output: Article
2020
Hybrid-basis inference for large-scale galaxy clustering: combining spherical and Cartesian Fourier analyses
Wang, M. S., Avila, S., Bianchi, D., Crittenden, R., Percival, W. J.
8 Oct 2020, In: Journal of Cosmology and Astroparticle Physics. 2020, 10, 39p., 22
Research output: Article
Latest evidence for a late time vacuum-geodesic CDM interaction
Hogg, N., Bruni, M., Crittenden, R., Martinelli, M., Peirone, S.
1 Sep 2020, In: Physics of the Dark Universe. 29, 10p., 100583
Research output: Article