Chile | Artículos de revistas
dc.creatorFrancke Henriquez, Harold
dc.creatorGawiser, Eric
dc.creatorLira Teillery, Paulina
dc.creatorTreister, Ezequiel
dc.creatorVirani, Shanil N.
dc.creatorCardamone, Carie
dc.creatorUrry, C. Megan
dc.creatorvan Dokkum, Pieter
dc.creatorQuadri, Ryan
dc.date.accessioned2010-01-22T12:28:57Z
dc.date.accessioned2019-04-25T23:48:40Z
dc.date.available2010-01-22T12:28:57Z
dc.date.available2019-04-25T23:48:40Z
dc.date.created2010-01-22T12:28:57Z
dc.date.issued2008-01-20
dc.identifierASTROPHYSICAL JOURNAL LETTERS Volume: 673 Issue: 1 Pages: L13-L16 Published: JAN 20 2008
dc.identifierhttp://repositorio.uchile.cl/handle/2250/125204
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/2429531
dc.description.abstractWe present the first clustering results of X-ray-selected active galactic nuclei (AGNs) at z similar to 3. Using Chandra X-ray imaging and UVR optical colors from MUSYC photometry in the Extended Chandra Deep Field-South field, we selected a sample of 58 z similar to 3 AGN candidates. From the optical data we also selected 1385 luminous blue galaxies (LBGs) at 2.8 < z < 3.8 with R < 25.5. We performed autocorrelation and cross-correlation analyses, and here we present results for the clustering amplitudes and dark matter (DM) halo masses of each sample. For the LBGs we find a correlation length of r(0,LBG) = 6.7 +/- 0.5 Mpc, implying a bias value of 3.5 +/- 0.3 and DM halo masses of log(M-min/M-circle dot) = 11.8 +/- 0.1. The AGN-LBG cross-correlation yields r(0,AGN-LBG) = 8.7 +/- 1.9 Mpc, implying for AGNs at 2.8 < z < 3.8 a bias value of 5.5 +/- 2.0 and DM halo masses of log(M-min/M-circle dot) = 12.6(-0.8)(+0.5). Evolution of DM halos in the Lambda CDM cosmology implies that today these z similar to 3 AGNs are found in high-mass galaxies with a typical luminosity of 7(-2)(+4)L*.
dc.languageen
dc.publisherUNIV CHICAGO PRESS
dc.subjectDEEP FIELD-SOUTH
dc.titleClustering of intermediate-luminosity x-ray-selected active galactic nuclei at z similar to 3
dc.typeArtículos de revistas


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