316 citations · 953 across the 8 of their papers we have counts for
8 papers
Tests of Gravity from Imaging and Spectroscopic Surveys
Jacek Guzik, Bhuvnesh Jain, Masahiro Takada
Tests of gravity on large-scales in the universe can be made using both imaging and spectroscopic surveys. The former allow for measurements of weak lensing, galaxy clustering and…
Systematic effects in the sound horizon scale measurements
Jacek Guzik, Gary Bernstein, Robert E. Smith
We investigate three potential sources of bias in distance estimations made assuming that a very simple estimator of the baryon acoustic oscillation (BAO) scale provides a standard…
Inhomogeneous systematic signals in cosmic shear observations
Jacek Guzik, Gary Bernstein
We calculate the systematic errors in the weak gravitational lensing power spectrum which would be caused by spatially varying calibration (i.e. multiplicative) errors, such as mig…
Systematic errors in weak lensing: application to SDSS galaxy-galaxy weak lensing
Rachel Mandelbaum, Christopher M. Hirata, Uros Seljak +6
Weak lensing is emerging as a powerful observational tool to constrain cosmological models, but is at present limited by an incomplete understanding of many sources of systematic e…
Galaxy-galaxy weak lensing in SDSS: intrinsic alignments and shear calibration errors
Christopher M. Hirata, Rachel Mandelbaum, Uros Seljak +9
Galaxy-galaxy lensing has emerged as a powerful probe of the dark matter halos of galaxies, but is subject to contamination if intrinsically aligned satellites of the lens galaxy a…
Virial masses of galactic halos from galaxy-galaxy lensing: theoretical modeling and application to SDSS
J. Guzik, U. Seljak
We present a theoretical analysis of galaxy-galaxy lensing in the context of halo models with CDM motivated dark matter profiles. The model enables us to separate between the centr…