Idit Zehavi


Rockefeller Building, Room 212

Idit Zehavi is a professor in Physics and a member of the Center for Education and Research in Cosmology and Astrophysics at Case Western Reserve University. Zehavi received a Ph.D. in Physics from the Hebrew University of Jerusalem and held research positions at Fermilab, University of Chicago and the University of Arizona, before coming to CWRU in 2006.

Her research interests include cosmology and the large-scale structure of the universe, galaxy formation and evolution, and cosmic flows. She is an astrophysicist working at the interface of theory and observations, performing studies using large surveys of galaxies as well as numerical simulations. She has been extensively involved with the Sloan Digital Sky Survey, an ambitious survey mapping a quarter of the sky, and is a member of upcoming surveys Taipan and LSST. In particular, she is focused on studying the clustering properties of galaxies and the detailed relation between galaxies and dark matter halos.

A full publication list can be found here.

Selected Publications:

Xu, Kumar, Zehavi, et al., Predicting Halo Occupation and Galaxy Assembly Bias with Machine Learning, Monthly Notices of the Royal Astronomical Society (MNRAS), 507, 4879 (2021)

Xu, Zehavi & Contreras, Dissecting and Modeling Galaxy Assembly Bias, MNRAS, 502, 3242 (2021)

Zehavi, Kerby, Contreras, et al., On the Prospect of Using the Maximum Circular Velocity of Halos to Encapsulate Assembly Bias in the Galaxy-Halo Connection, Astrophysical Journal (ApJ), 887, 17 (2019)

Contreras, Zehavi, Padilla, et al., The Evolution of Galaxy Assembly Bias, MNRAS, 484, 1133 (2019)

Artale, Zehavi, Contreras & Norberg, The Impact of Assembly Bias on the Halo Occupation in Hydrodynamical Simulations, MNRAS, 480, 3978 (2018)

Zehavi, Contreras, Padilla, et al., The Impact of Assembly Bias on the Galaxy Content of Dark Matter Halos, ApJ, 853, 84 (2018)

Contreras, Zehavi, Baugh, et al., The Evolution of the Galaxy Content of Dark Matter Haloes, MNRAS, 465, 2833 (2017)

Guo, Zheng, Zehavi, et al., Velocity Bias from the Small Scale Clustering of SDSS-III BOSS Galaxies, MNRAS, 446, 578 (2015)

Guo, Zehavi, Zheng, et al., The Clustering of Galaxies in SDSS-III BOSS: Luminosity and Color Dependence and Redshift Evolution, ApJ, 767, 122 (2013)

Guo, Zehavi & Zheng, A New Method to Correct for Fiber Collisions in Galaxy Two-Point Statistics, ApJ, 756, 127 (2012)

Zehavi, Patiri & Zheng, The Growth of Galaxy Stellar Mass Within Dark Matter Halos, ApJ, 746, 145 (2012)

Zehavi, Zheng, Weinberg, et al., Galaxy Clustering in the Completed SDSS Redshift Survey, ApJ, 736, 59 (2011)

Eisenstein, Zehavi, Hogg, et al., Detection of the Baryonic Acoustic Peak in the Large-Scale Correlation Function of SDSS Luminous Red Galaxies,  ApJ, 633, 560 (2005)

Zehavi, Zheng, Weinberg, et al., The Luminosity and Color Dependence of the Galaxy Correlation Function, ApJ, 630, 1 (2005)

Zehavi, Weinberg, Zheng, et al. On Departures from a Power Law in the Galaxy Correlation Function, ApJ, 608, 16 (2004)

Zehavi & Dekel, Evidence for a Positive Cosmological Constant from Flow of Galaxies and Distant Supernovae, Nature, 401, 252 (1999)