77 citations · 176 across the 7 of their papers we have counts for
7 papers · 1 filter
Computing 3 point correlation function randoms counts without the randoms catalogue
David W. Pearson, Lado Samushia
As we move towards future galaxy surveys, the three-point statistics will be increasingly leveraged to enhance the constraining power of the data on cosmological parameters. An ess…
A Detection of the Baryon Acoustic Oscillation Features in the SDSS BOSS DR12 Galaxy Bispectrum
David W. Pearson, Lado Samushia
We present the first high significance detection () of the Baryon Acoustic Oscillations (BAO) feature in the galaxy bispectrum of the twelfth data release (DR12) of the Baryo…
Optimal Weights For Measuring Redshift Space Distortions in Multi-tracer Galaxy Catalogues
David W. Pearson, Lado Samushia, Praful Gagrani
Since the volume accessible to galaxy surveys is fundamentally limited, it is extremely important to analyse available data in the most optimal fashion. One way of enhancing the co…
Estimating the power spectrum covariance matrix with fewer mock samples
David W. Pearson, Lado Samushia
The covariance matrices of power-spectrum (P(k)) measurements from galaxy surveys are difficult to compute theoretically. The current best practice is to estimate covariance matric…
The extent of gravitationally bound structure in a ΛCDM universe
David W. Pearson
A new analytical model for constraining the extent of gravitationally bound structure in the Universe is presented. This model is based on a simple modification of the spherical co…
The Largest Gravitationally Bound Structures: The Corona Borealis Supercluster - Mass and Bound Extent
David W. Pearson, Merida Batiste, David J. Batuski
Recent simulations of the densest portion of the Corona Borealis supercluster (A2061, A2065, A2067, and A2089) have shown virtually no possibility of extended gravitationally bound…
Locating Bound Structure in an Accelerating Universe
David W. Pearson, David J. Batuski
Given the overwhelming evidence that the universe is currently undergoing an accelerated expansion, the question of what are the largest gravitationally bound structures remains. A…