Cluster-supercluster alignments
dc.contributor.author | Lee, Jounghun | en_US |
dc.contributor.author | Evrard, August E. | en_US |
dc.date.accessioned | 2008-08-14T19:10:15Z | |
dc.date.available | 2008-08-14T19:10:15Z | |
dc.date.issued | 2007-03-01 | en_US |
dc.identifier.citation | Lee, J; Evrard, AE. (2007). Astrophysical Journal, 657:(1, Part1) 30-36. <http://hdl.handle.net/2027.42/60577> | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://arxiv.org/abs/astro-ph/0608685 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/60577 | |
dc.identifier.uri | http://www.ncbi.nlm.nih.gov/sites/entrez?cmd=retrieve&db=pubmed&list_uids=11539449&dopt=citation | en_US |
dc.description.abstract | We study correlations in spatial orientation between galaxy clusters and their host superclusters using a Hubble volume N-body realization of a concordance cosmology and an analytic model for tidally induced alignments. We derive an analytic form for the distributions of alignment angle as functions of halo mass (M), ellipticity (epsilon), distance (r), and velocity (v) and show that the model, after tuning of three parameters, provides a good fit to the numerical results. The parameters indicate a high degree of alignment along anisotropic, collapsed filaments. The degree of alignment increases with M and epsilon, while it decreases with r and is independent of v. We note the possibility of using the cluster-supercluster alignment effect as a cosmological probe to constrain the slope of the initial power spectrum. | en_US |
dc.format.extent | 248348 bytes | |
dc.format.extent | 18 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.publisher | Univ Chicago Press | en_US |
dc.subject | Cosmology : Theory | en_US |
dc.subject | Large-scale Structure of Universe | en_US |
dc.title | Cluster-supercluster alignments | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Physics | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA | en_US |
dc.contributor.affiliationum | Univ Michigan, Michigan Ctr Theoret Phys, Ann Arbor, MI 48109 USA | en_US |
dc.contributor.affiliationum | Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA | en_US |
dc.contributor.affiliationother | Seoul Natl Univ, Frontier Phys Res Div, Dept Phys & Astron, Seoul, South Korea | en_US |
dc.contributor.affiliationumcampus | Ann Arbor | en_US |
dc.identifier.pmid | 11539449 | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/60577/1/LeeEvrard2006Cluster.pdf | |
dc.identifier.doi | http://dx.doi.org/10.1086/511003 | en_US |
dc.owningcollname | Astrophysics (Physics, Department of) |
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