Angular Clustering of Galaxies at 3.6 micron from the SWIRE survey

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dc.creatorOliver, Seb
dc.creatorWaddington, Ian
dc.creatorGonzalez-Solares, Eduardo
dc.creatorSurace, Jason
dc.creatorFang, Fan
dc.creatorShupe, Dave
dc.creatorJarrett, Tom
dc.creatorLonsdale, Carol
dc.creatorXu, Cong Kevin
dc.creatorFarrah, Duncan
dc.creatorSalaman, Malcolm
dc.creatorRowan-Robinson, Michael
dc.creatorSiana, Brian
dc.creatorSmith, H. E. Gene
dc.date2004-05-28
dc.date.accessioned2026-07-07T02:13:20Z
dc.date.available2026-07-07T02:13:20Z
dc.descriptionWe present the first analysis of large-scale clustering from the Spitzer Wide-area InfraRed Extragalactic legacy survey: SWIRE. We compute the angular correlation function of galaxies selected to have 3.6 micron fluxes brighter than 32 muJy in three fields totaling two square degrees in area. In each field we detect clustering with a high level of significance. The amplitude and slope of the correlation function is consistent between the three fields and is modeled as $w(theta)=Aθ^{1-γ}$ with $A=(0.6\pm0.3)\times10^{-3}, γ=2.03\pm0.10$. With a fixed slope of $γ=1.8$, we obtain an amplitude of $A=(1.7\pm0.1)\times10^{-3}$. Assuming an equivalent depth of K~18.7 mag we find our errors are smaller but our results are consistent with existing clustering measurements in K-band surveys and with stable clustering models. We estimate our median redshift $z\simeq 0.75$ and this allows us to obtain an estimate of the three-dimensional correlation function $ξ(r)$, for which we find $r_0=4.4\pm0.1 h^{-1}$ Mpc.
dc.description13 pages, Latex, 3 figs, accepted for ApJS Spitzer Special Edition
dc.identifierhttps://arxiv.org/abs/astro-ph/0405592
dc.identifierhttp://arxiv.org/abs/astro-ph/0405592
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/7782
dc.subjectAstrophysics
dc.titleAngular Clustering of Galaxies at 3.6 micron from the SWIRE survey
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