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Visualization of large scale structure from the Sloan Digital Sky Survey

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Published 1 December 2008 • Published under licence by IOP Publishing Ltd
, , Focus on Visualization in Physics Citation M U SubbaRao et al 2008 New J. Phys. 10 125015 DOI 10.1088/1367-2630/10/12/125015

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Author affiliations

1 Space Visualization Laboratory, Adler Planetarium and Astronomy Museum, 1300 S Lake Shore Drive, Chicago, IL 60605, USA

2 Department of Astronomy and Astrophysics, The University of Chicago, 5640 S Ellis Avenue, Chicago, IL 60637, USA

3 Department of Physics and Astronomy, The Johns Hopkins University, 3400 N Charles Street, Baltimore, MD 21218, USA

4 Department of Physics and Astronomy, Carthage College, 2001 Alford Park Drive, Kenosha, WI 53140, USA

Dates

  1. Received 11 August 2008
  2. Published

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1367-2630/10/12/125015

Abstract

We will discuss the challenges of visualizing large cosmological datasets. These include observational issues such as the masks and incomplete nature of the survey volume, cosmological issues such as redshift distortions and the difficulty of visualizing datasets that span cosmological epochs, as well as the inherent visualization challenges in presenting dense three-dimensional (3D) datasets. Two case studies will be presented. The first will feature the identification of filamentary structures in the large scale distribution of galaxies. The second case study will feature visualizations of the correlations between quasar absorption line systems and luminous red galaxies. Finally, we will give an overview of our visualization work-flow which features the use of the open-source 3D modeling program Blender.

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10.1088/1367-2630/10/12/125015