2003/09/09 by Scott Dodelson · 43 citations
Mathematics · Physics and Astronomy · #Adaptive optics and wavefront sensing #Artificial intelligence #Astronomy #Astrophysics #Cluster (spacecraft) #Computer science #Data mining #Galaxies: Formation, Evolution, Phenomena #Galaxy #Galaxy cluster #Geometry #Gravitation #Gravitational lens #Line (geometry) #Line-of-sight #Mathematics #Measure (data warehouse) #Noise (video) #Physics #Radio Astronomy Observations and Technology #Scale (ratio) #Sight #Weak gravitational lensing #astro-ph
paper · pdf · doi:10.1103/physrevd.70.023008
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 70(2) (American Physical Society) · 5 pages, 5 figures
arxiv created 2003/09/09 · openalex publication_date 2004/07/30 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Weak gravitational lensing of background galaxies by foreground clusters offers an excellent opportunity to measure cluster masses directly without using gas as a probe. One source of noise which seems difficult to avoid is large scale structure along the line of sight. Here I show that the spatial properties of this noise are sufficiently distinct that it can be efficiently weeded out using standard map-making techniques.