43 citations · 55 across the 2 of their papers we have counts for
4 papers
Diagnosing space telescope misalignment and jitter using stellar images
Zhaoming Ma, Gary Bernstein, Alan Weinstein +1
Accurate knowledge of the telescope's point spread function (PSF) is essential for the weak gravitational lensing measurements that hold great promise for cosmological constraints.…
Size of spectroscopic calibration samples for cosmic shear photometric redshifts
Zhaoming Ma, Gary Bernstein
Weak gravitational lensing surveys using photometric redshifts can have their cosmological constraints severely degraded by errors in the photo-z scale. We explore the cosmological…
Effect of Photometric Redshift Uncertainties on Weak Lensing Tomography
Zhaoming Ma, Wayne Hu, Dragan Huterer
We perform a systematic analysis of the effects of photometric redshift uncertainties on weak lensing tomography. We describe the photo-z distribution with a bias and Gaussian scat…
SDSS J0903+5028: A New Gravitational Lens
David E. Johnston, Gordon T. Richards, Joshua A. Frieman +22
We report the discovery of a new gravitationally lensed quasar from the Sloan Digital Sky Survey, SDSS J090334.92+502819.2. This object was targeted for SDSS spectroscopy as a Lumi…