SIMBAD references

2004ApJ...607L...1G - Astrophys. J., 607, L1-L4 (2004/May-3)

Spectroscopic confirmation of the Cl 1604 supercluster at z∼0.9.

GAL R.R. and LUBIN L.M.

Abstract (from CDS):

We present spectroscopic confirmation of the Cl 1604 supercluster at z∼0.9. The supercluster was originally detected as two individual clusters, Cl 1604+4304 at z=0.90 and Cl 1604+4321 at z=0.92, which are closely separated in both redshift and sky position. Subsequent imaging revealed a complex of red galaxies bridging the two clusters, suggesting that the region contained a large-scale structure. We have carried out extensive multiobject spectroscopy, which, combined with previous measurements, provides ∼600 redshifts in this area, including 230 confirmed supercluster members. We detect two additional clusters that are part of this structure, Cl 1604+4314 at z=0.87 and Cl 1604+4316 at z=0.94. All four have properties typical of local clusters, with line-of-sight velocity dispersions between 489 and 962 km/s. The structure is significantly extended in redshift space, which, if interpreted as a true elongation in real space, implies a depth of 93 h–170Mpc. We examine the spatial and redshift distribution of the supercluster members.

Abstract Copyright:

Journal keyword(s): Catalogs - Galaxies: Clusters: General - Cosmology: Large-Scale Structure of Universe - Surveys

Nomenclature: Table 1: [GL2004b] J1604+4314 A (Nos A-D).

CDS comments: Cl 1604 supercluster = ClG J1604+4314 = NAME Cl J1604 SUPERCLUSTER in SIMBAD.

Simbad objects: 13

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2019.12.15-22:44:00

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