465 citations · 2.6k across the 40 of their papers we have counts for
10 papers · 1 filter
Evaluation of probabilistic photometric redshift estimation approaches for The Rubin Observatory Legacy Survey of Space and Time (LSST)
S. J. Schmidt, A. I. Malz, J. Y. H. Soo +24
Many scientific investigations of photometric galaxy surveys require redshift estimates, whose uncertainty properties are best encapsulated by photometric redshift (photo-z) poster…
Cosmic Web Reconstruction through Density Ridges: Catalogue
Yen-Chi Chen, Shirley Ho, Jon Brinkmann +4
We construct a catalogue for filaments using a novel approach called SCMS (subspace constrained mean shift; Ozertem & Erdogmus 2011; Chen et al. 2015). SCMS is a gradient-based met…
Prediction of galaxy ellipticities and reduction of shape noise in cosmic shear measurements
Rupert A. C. Croft, Peter E. Freeman, Thomas S. Schuster +1
The intrinsic scatter in the ellipticities of galaxies about the mean shape, known as "shape noise," is the most important source of noise in weak lensing shear measurements. Sever…
Investigating Galaxy-Filament Alignments in Hydrodynamic Simulations using Density Ridges
Yen-Chi Chen, Shirley Ho, Ananth Tenneti +6
In this paper, we study the filamentary structures and the galaxy alignment along filaments at redshift in the MassiveBlack-II simulation, a state-of-the-art, high-resolut…
Cosmic Web Reconstruction through Density Ridges: Method and Algorithm
Yen-Chi Chen, Shirley Ho, Peter E. Freeman +2
The detection and characterization of filamentary structures in the cosmic web allows cosmologists to constrain parameters that dictates the evolution of the Universe. While many f…
New Image Statistics for Detecting Disturbed Galaxy Morphologies at High Redshift
P. E. Freeman, R. Izbicki, A. B. Lee +5
Testing theories of hierarchical structure formation requires estimating the distribution of galaxy morphologies and its change with redshift. One aspect of this investigation invo…