Definitive Identification of the Transition between Small- to Large-Scale Clustering for Lyman Break Galaxies

Simple item page
dc.creatorOuchi, M
dc.creatorHamana, T.
dc.creatorShimasaku, K.
dc.creatorYamada, T.
dc.creatorAkiyama, M.
dc.creatorKashikawa, N.
dc.creatorYoshida, M.
dc.creatorAoki, K.
dc.creatorIye, M.
dc.creatorSaito, T.
dc.creatorSasaki, T.
dc.creatorSimpson, C.
dc.creatorYoshida, M.
dc.date2005-08-02
dc.date2005-11-21
dc.date.accessioned2026-07-07T06:41:09Z
dc.date.available2026-07-07T06:41:09Z
dc.descriptionWe report angular correlation function (ACF) of Lyman Break Galaxies (LBGs) with unprecedented statistical quality on the basis of 16,920 LBGs at z=4 detected in the 1 deg^2 sky of the Subaru/XMM-Newton Deep Field. The ACF significantly departs from a power law, and shows an excess on small scale. Particularly, the ACF of LBGs with i'<27.5 have a clear break between the small and large-scale regimes at the angular separation of ~7'' whose projected length corresponds to the virial radius of dark halos with a mass of 10^11-12 Mo, indicating multiple LBGs residing in a single dark halo. Both on small (2''<theta<3'') and large (40''<theta<400'') scales, clustering amplitudes monotonically increase with luminosity for the magnitude range of i'=24.5-27.5, and the small-scale clustering shows a stronger luminosity dependence than the large-scale clustering. The small-scale bias reaches b~10-50, and the outskirts of small-scale excess extend to a larger angular separation for brighter LBGs. The ACF and number density of LBGs can be explained by the cold dark matter model.
dc.descriptionAccepted for publication in ApJL. 5 pages, 4 figures. The text and Figures 2-4 have been revised. There is no major change which affects to the main discussion shown in the original preprint. This paper with high resolution figures is available at http://www-int.stsci.edu/~ouchi/work/astroph/sxds_z4LBG/ouchi_highres.pdf (PDF)
dc.identifierhttps://arxiv.org/abs/astro-ph/0508083
dc.identifierhttp://arxiv.org/abs/astro-ph/0508083
dc.identifierAstrophys.J. 635 (2005) L117-L120
dc.identifierdoi:10.1086/499519
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/101567
dc.subjectAstrophysics
dc.titleDefinitive Identification of the Transition between Small- to Large-Scale Clustering for Lyman Break Galaxies
dc.typetext

Files

Collections

arXiv