Cosmological Parameters from Eigenmode Analysis of SDSS Clustering on Large Scales

Details Cosmological Parameters from Eigenmode Analysis of SDSS Clustering on Large Scales Cosmological Parameters from Eigenmode Analysis of SDSS Clustering on Large Scales

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...20514801p&link_type=abstract

American Astronomical Society Meeting 205, #148.01; Bulletin of the American Astronomical Society, Vol. 36, p.1596

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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.

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