A Robust Estimator of the Small-Scale Galaxy Correlation Function

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dc.creatorPadmanabhan, Nikhil
dc.creatorWhite, Martin
dc.creatorEisenstein, Daniel J.
dc.date2006-12-05
dc.date2007-03-23
dc.date.accessioned2026-07-07T11:57:29Z
dc.date.available2026-07-07T11:57:29Z
dc.descriptionWe present a new estimator, omega, of the small scale galaxy correlation function that is robust against the effects of redshift space distortions and large scale structures. The estimator is a weighted integral of the redshift space or angular correlation function and is a convolution of the real space correlation function with a localized filter. This allows a direct comparison with theory, without modeling redshift space distortions and the large scale correlation function. This has a number of advantages over the more traditional w_p estimator, including (i) an insensitivity to large scale structures and the details of the truncation of the line of sight integral, (ii) a compact kernel in xi(r), and (iii) being unbinned. We discuss how this estimator would be used in practice, applying it to a sample of mock galaxies selected from the Millennium simulation.
dc.description5 pages, 4 figures, matches version accepted by MNRAS
dc.identifierhttps://arxiv.org/abs/astro-ph/0612103
dc.identifierhttp://arxiv.org/abs/astro-ph/0612103
dc.identifierMon.Not.Roy.Astron.Soc.376:1702-1706,2007
dc.identifierdoi:10.1111/j.1365-2966.2007.11554.x
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/205900
dc.subjectAstrophysics
dc.titleA Robust Estimator of the Small-Scale Galaxy Correlation Function
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