2011MNRAS.414.2029P

Query : 2011MNRAS.414.2029P

2011MNRAS.414.2029P - Mon. Not. R. Astron. Soc., 414, 2029-2039 (2011/July-1)

Alignments of galaxy group shapes with large-scale structure.

PAZ D.J., SGRO M.A., MERCHAN M. and PADILLA N.

Abstract (from CDS):

In this paper we analyse the alignment of galaxy groups with the surrounding large scale structure traced by spectroscopic galaxies from the Sloan Digital Sky Survey Data Release 7. We characterize these alignments by means of an extension of the classical two-point cross-correlation function, developed by Paz et al. We find a strong alignment signal between the projected major axis of group shapes and the surrounding galaxy distribution up to scales of 30 Mpc h–1. This observed anisotropy signal becomes larger as the galaxy group mass increases, in excellent agreement with the corresponding predicted alignment obtained from mock catalogues and ΛCDM cosmological simulations. These measurements provide new direct evidence of the adequacy of the gravitational instability picture to describe the large-scale structure formation of our Universe.

Abstract Copyright: 2011 The Authors Monthly Notices of the Royal Astronomical Society2011 RAS

Journal keyword(s): galaxies: groups: general - dark matter - large-scale structure of Universe

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME Local Supercluster SCG 12 31 +12.4           ~ 566 0

Query : 2011MNRAS.414.2029P

Basic data :
NAME Local Supercluster -- Supercluster of Galaxies
Other object types: otypes_help 		SCG ()
ICRS coord. (ep=J2000) : 		12 31 00.0 +12 24 00 [ ] E ~
FK4 coord. (ep=B1950 eq=1950) : 		12 28 28.2 +12 40 34 [ ]
Gal coord. (ep=J2000) : 		283.9216 +74.5125 [ ]
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

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Identifiers (6) :
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NAME LOCAL SUPERCL NAME VIRGO SUPERCL NAME Vir Supercluster
NAME LSC NAME Local Supercluster NAME Virgo Supercluster

References (566 between 1850 and 2026) (Total 566)
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