Open AccessDeprojecting Densities from Angular Cross‐Correlations
Author(s) -
Daniel J. Eisenstein
Publication year - 2003
Publication title -
the astrophysical journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.376
H-Index - 489
eISSN - 1538-4357
pISSN - 0004-637X
DOI - 10.1086/367851
Subject(s) - estimator , redshift , simple (philosophy) , physics , aperture (computer memory) , mathematics , astrophysics , statistics , acoustics , galaxy , philosophy , epistemology
I present a model-independent spherically symmetric density estimator to beused in the cross-correlation of imaging catalogs with objects of knownredshift. The estimator is a simple modification of the usual projected densityestimator, with weightings that produce a spherical aperture rather than acylindrical one.Comment: 10 pages, LaTeX, 1 figure. Submitted to ApJ
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