Show simple item record

dc.contributor.authorMuñoz, Joseph A.
dc.contributor.authorLoeb, Abraham
dc.date.accessioned2019-09-27T13:19:15Z
dc.date.issued2008-11-27
dc.identifier.citationMuñoz, Joseph A., and Abraham Loeb. 2008. “The Density Contrast of the Shapley Supercluster.” Monthly Notices of the Royal Astronomical Society 391 (3): 1341–49. https://doi.org/10.1111/j.1365-2966.2008.13973.x.
dc.identifier.issn0035-8711
dc.identifier.issn1365-2966
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:41417393*
dc.description.abstractWe calculate the density contrast of the Shapley supercluster (SSC) based on the enhanced abundance of X-ray clusters in it using the extended Press-Schechter formalism. We derive a total SSC mass of M(tot) = (4.4 +/- 0.44) x 10(16) M(circle dot) within a sphere of 50 Mpc centred at a distance of about 160 Mpc. The non-linear fractional density contrast of the sphere is (1 + delta) = 1.76 +/- 0.17 relative to the mean matter density in the Universe, but the contrast increases in the interior of the SSC. Including the cosmological constant, the SSC region is found to be gravitationally unbound. The SSC contributes only a minor portion (9.0 +/- 2.1 per cent) of the peculiar velocity of the Local Group.
dc.language.isoen_US
dc.publisherOxford University Press
dash.licenseOAP
dc.titleThe density contrast of the Shapley supercluster
dc.typeJournal Article
dc.description.versionAccepted Manuscript
dc.relation.journalMonthly Notices of the Royal Astronomical Society
dash.depositing.authorLoeb, Abraham::e022a3952362350ac8a0138f128a8be7::600
dc.date.available2019-09-27T13:19:15Z
dash.workflow.comments1Science Serial ID 66280
dc.identifier.doi10.1111/j.1365-2966.2008.13973.x
dash.source.volume391;3
dash.source.page1341-1349


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record