[148.01] Cosmological Parameters from Eigenmode Analysis of SDSS Clustering on Large Scales

AAS 205th Meeting, 9-13 January 2005
Session 148 Large Scale Structure
Poster, Thursday, January 13, 2005, 9:20am-4:00pm, Exhibit Hall

Previous | Session 148 | Next

[148.01] Cosmological Parameters from Eigenmode Analysis of SDSS Clustering on Large Scales

A. Pope, A. Szalay (Johns Hopkins), T. Matsubara (Nagoya), T. Budavari (Johns Hopkins), D. Eisenstein (U Arizona), J. Gray (Microsoft Research), B. Jain (U Penn), M. R. Blanton (NYU), SDSS Collaboration

We present our latest results of the application of the linear Karhunen-Loève eigenmode analysis technique to the measurement of the power spectrum of density fluctuations on large scales. We extend our previous analysis of low redshift (z ~0.1) Sloan Digital Sky Survey (SDSS) galaxies to higher redshift galaxy samples in the SDSS. We attempt to use the increase in volume to resolve features in the power spectrum which can significantly increase our ability to constrain cosmological parameters. We also present our methods for using databases to prepare data for statistical studies and for spatial analysis of large random catalogs.

This material is based upon work supported under a National Science Foundation Graduate Research Fellowship and by NSF AST 98-02980 at the Johns Hopkins University.

Previous | Session 148 | Next