1.2k citations · 20.2k across the 202 of their papers we have counts for
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The cosmology dependence of weak lensing cluster counts
Laura Marian, Robert E. Smith, Gary M. Bernstein
We present the main results of a numerical study of weak lensing cluster counting. We examine the scaling with cosmology of the projected-density-peak mass function. Our main concl…
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.…
Comprehensive Two-Point Analyses of Weak Gravitational Lensing Surveys
Gary M. Bernstein
We present a framework for analyzing weak gravitational lensing survey data, including lensing and source-density observables, plus spectroscopic redshift calibration data. All two…
Multipole Formulae for Gravitational Lensing Shear and Flexion
Gary M. Bernstein, Reiko Nakajima
The gravitational lensing equations for convergence, potential, shear, and flexion are simple in polar coordinates and separate under a multipole expansion once the shear and flexi…
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…
SuperNova Acceleration Probe (SNAP): Investigating Photometric Redshift Optimization
Tomas Dahlen, Bahram Mobasher, Stephanie Jouvel +5
The aim of this paper is to investigate ways to optimize the accuracy of photometric redshifts for a SNAP like mission. We focus on how the accuracy of the photometric redshifts de…
Lensing Systematics from Space: Modeling PSF effects in the SNAP survey
H. F. Stabenau, B. Jain, G. Bernstein +1
Anisotropy in the point spread function (PSF) contributes a systematic error to weak lensing measurements. In this study we use a ray tracer that incorporates all the optical eleme…
Detectability of CMB tensor B modes via delensing with weak lensing galaxy surveys
Laura Marian, Gary M. Bernstein
We analyze the possibility of delensing CMB polarization maps using foreground weak lensing (WL) information. We build an estimator of the CMB lensing potential out of optimally co…
Report of the Dark Energy Task Force
Andreas Albrecht, Gary Bernstein, Robert Cahn +10
Dark energy appears to be the dominant component of the physical Universe, yet there is no persuasive theoretical explanation for its existence or magnitude. The acceleration of th…
The Shear TEsting Programme 2: Factors affecting high precision weak lensing analyses
Richard Massey, Catherine Heymans, Joel Berge +28
The Shear TEsting Programme (STEP) is a collaborative project to improve the accuracy and reliability of weak lensing measurement, in preparation for the next generation of wide-fi…
Evaluating Dark Energy Probes using Multi-Dimensional Dark Energy Parameters
Andreas Albrecht, Gary Bernstein
We investigate the value of future dark energy experiments by modeling their ability to constrain the dark energy equation of state. Similar work was recently reported by the Dark…
Shear Recovery Accuracy in Weak Lensing Analysis with Elliptical Gauss-Laguerre Method
Reiko Nakajima, Gary Bernstein
We implement the Elliptical Gauss-Laguerre (EGL) galaxy-shape measurement method proposed by Bernstein & Jarvis (2002) and quantify the shear recovery accuracy in weak lensing anal…
Dark energy constraints from lensing-detected galaxy clusters
Laura Marian, Gary M. Bernstein
We study the ability of weak lensing surveys to detect galaxy clusters and constrain cosmological parameters, in particular the equation of state of dark energy. There are two majo…
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…
Lightcurves of 20--100 kilometer Kuiper Belt Objects using the Hubble Space Telescope
David E. Trilling, Gary M. Bernstein
We report high precision photometry of three small and one larger Kuiper Belt Objects (KBOs) obtained with the Advanced Camera for Surveys onboard the Hubble Space Telescope (ACS/H…
PSF Anisotropy and Systematic Errors in Weak Lensing Surveys
Bhuvnesh Jain, Mike Jarvis, Gary Bernstein
Given the basic parameters of a cosmic shear weak lensing survey, how well can systematic errors due to anisotropy in the point spread function (PSF) be corrected? The largest sour…
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 Future Weak Lensing Surveys: Requirements and Prospects for Self-Calibration
Dragan Huterer, Masahiro Takada, Gary Bernstein +1
We study the impact of systematic errors on planned weak lensing surveys and compute the requirements on their contributions so that they are not a dominant source of the cosmologi…
The Shear TEsting Programme 1: Weak lensing analysis of simulated ground-based observations
Catherine Heymans, Ludovic Van Waerbeke, David Bacon +22
The Shear TEsting Programme, STEP, is a collaborative project to improve the accuracy and reliability of all weak lensing measurements in preparation for the next generation of wid…
Dark Energy Constraints from the CTIO Lensing Survey
Mike Jarvis, Bhuvnesh Jain, Gary Bernstein +1
We perform a cosmological parameter analysis of the 75 square degree CTIO lensing survey in conjunction with CMB and Type Ia supernovae data. For Lambda CDM cosmologies, we find th…
Supernova / Acceleration Probe: A Satellite Experiment to Study the Nature of the Dark Energy
SNAP Collaboration, G. Aldering, W. Althouse +109
The Supernova / Acceleration Probe (SNAP) is a proposed space-based experiment designed to study the dark energy and alternative explanations of the acceleration of the Universe's…
The Size Distribution of Trans-Neptunian Bodies
G. M. Bernstein, D. E. Trilling, R. L. Allen +3
[Condensed] We search 0.02 deg^2 for trans-Neptunian objects (TNOs) with m<=29.2 (diameter ~15 km) using the ACS on HST. Three new objects are discovered, roughly 25 times fewer th…
The Skewness of the Aperture Mass Statistic
M. Jarvis, G. Bernstein, B. Jain
We present simple formulae for calculating the skewness and kurtosis of the aperture mass statistic for weak lensing surveys which is insensitive to masking effects of survey geome…
Weak Lensing from Space III: Cosmological Parameters
Alexandre Refregier, Richard Massey, Jason Rhodes +6
Weak gravitational lensing provides a unique method to directly map the dark matter in the universe and measure cosmological parameters. Current weak lensing surveys are limited by…