The Discovery of Primeval Large-Scale Structures with Forming Clusters at Redshift 6

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dc.creatorOuchi, M.
dc.creatorShimasaku, K.
dc.creatorAkiyama, M.
dc.creatorSekiguchi, K.
dc.creatorFurusawa, H.
dc.creatorOkamura, S.
dc.creatorKashikawa, N.
dc.creatorIye, M.
dc.creatorKodama, T.
dc.creatorSaito, T.
dc.creatorSasaki, T.
dc.creatorSimpson, C.
dc.creatorTakata, T.
dc.creatorYamada, T.
dc.creatorYamanoi, H.
dc.creatorYoshida, M.
dc.creatorYoshida, M.
dc.date2004-12-29
dc.date.accessioned2026-07-07T11:29:32Z
dc.date.available2026-07-07T11:29:32Z
dc.descriptionWe report the discovery of primeval large-scale structures (LSSs) including two proto-clusters in a forming phase at z=5.7. We carried out extensive deep narrow-band imaging in the 1 deg^2 sky of the Subaru/XMM-Newton Deep Field, and obtained a cosmic map of 515 Ly alpha emitters (LAEs) in a volume with a transverse dimension of 180 Mpc x 180 Mpc and a depth of ~40 Mpc in comoving units. This cosmic map shows filamentary LSSs, including clusters and surrounding 10-40 Mpc scale voids, similar to the present-day LSSs. Our spectroscopic follow-up observations identify overdense regions in which two dense clumps of LAEs with a sphere of 1-Mpc diameter in physical units are included. These clumps show about 130 times higher star-formation rate density, mainly due to a large overdensity, ~80, of LAEs. These clumps would be clusters in a formation phase involving a burst of galaxy formation.
dc.description8 pages, 4 figures, to be published in ApJL. The paper with high resolution figures is available at http://www-int.stsci.edu/~ouchi/work/astroph/sxds_LSS/
dc.identifierhttps://arxiv.org/abs/astro-ph/0412648
dc.identifierhttp://arxiv.org/abs/astro-ph/0412648
dc.identifierAstrophys.J.620:L1-L4,2005
dc.identifierdoi:10.1086/428499
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/196743
dc.subjectAstrophysics
dc.titleThe Discovery of Primeval Large-Scale Structures with Forming Clusters at Redshift 6
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