1k citations · 2.2k across the 11 of their papers we have counts for
11 papers
Residual Smoothing: Using Mocks to Correct Model Covariance Matrices
Ross O'Connell
Abstract Covariance matrix estimation is a challenging problem in cosmology. Recent work has shown that model covariance matrices can be precise, and that at relatively large scale…
RascalC: A Jackknife Approach to Estimating Single and Multi-Tracer Galaxy Covariance Matrices
Oliver H. E. Philcox, Daniel J. Eisenstein, Ross O'Connell +1
To make use of clustering statistics from large cosmological surveys, accurate and precise covariance matrices are needed. We present a new code to estimate large scale galaxy two-…
Large Covariance Matrices: Accurate Models Without Mocks
Ross O'Connell, Daniel J. Eisenstein
Covariance matrix estimation is a persistent challenge for cosmology. We focus on a class of model covariance matrices that can be generated with high accuracy and precision, using…
The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: theoretical systematics and Baryon Acoustic Oscillations in the galaxy correlation function
Mariana Vargas-Magaña, Shirley Ho, Antonio J. Cuesta +18
We investigate the potential sources of theoretical systematics in the anisotropic Baryon Acoustic Oscillation (BAO) distance scale measurements from the clustering of galaxies in…
Estimating sparse precision matrices
Nikhil Padmanabhan, Martin White, Harrison H. Zhou +1
We apply a method recently introduced to the statistical literature to directly estimate the precision matrix from an ensemble of samples drawn from a corresponding Gaussian distri…
Large Covariance Matrices: Smooth Models from the 2-Point Correlation Function
Ross O'Connell, Daniel Eisenstein, Mariana Vargas +2
We introduce a new method for estimating the covariance matrix for the galaxy correlation function in surveys of large-scale structure. Our method combines simple theoretical resul…
Baryon Acoustic Oscillations in the Lyα forest of BOSS DR11 quasars
Timothée Delubac, Julian E. Bautista, Nicolás G. Busca +35
We report a detection of the baryon acoustic oscillation (BAO) feature in the flux-correlation function of the Lyα forest of high-redshift quasars with a statistical significance o…
SDSS-III Baryon Oscillation Spectroscopic Survey: Analysis of Potential Systematics in Fitting of Baryon Acoustic Feature
Mariana Vargas Magaña, Shirley Ho, Xiaoying Xu +12
Extraction of the Baryon Acoustic Oscillations (BAO) to percent level accuracy is challenging and demands an understanding of many potential systematic to an accuracy well below 1…
Sloan Digital Sky Survey III Photometric Quasar Clustering: Probing the Initial Conditions of the Universe using the Largest Volume
Shirley Ho, Nishant Agarwal, Adam D. Myers +18
The Sloan Digital Sky Survey has surveyed 14,555 square degrees of the sky, and delivered over a trillion pixels of imaging data. We present the large-scale clustering of 1.6 milli…
Detection of Lyβauto-correlations and Lyα-Lyβcross-correlations in BOSS Data Release 9
Vid Iršič, Anže Slosar, Stephen Bailey +13
The Lyman- forest refers to a region in the spectra of distant quasars that lies between the rest-frame Lyman- and Lyman- emissions. The forest in this region is dominated…
The Tenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-III Apache Point Observatory Galactic Evolution Experiment
Christopher P. Ahn, Rachael Alexandroff, Carlos Allende Prieto +232
The Sloan Digital Sky Survey (SDSS) has been in operation since 2000 April. This paper presents the tenth public data release (DR10) from its current incarnation, SDSS-III. This da…