SIMBAD references

2002AJ....123.2261B - Astron. J., 123, 2261-2279 (2002/May-0)

The dynamics of the merging galaxy cluster system A2256: evidence for a new subcluster.

BERRINGTON R.C., LUGGER P.M. and COHN H.N.

Abstract (from CDS):

We present 236 new radial velocities of galaxies in the cluster A2256 measured with the WIYN Hydra Multi-Object Spectrograph. Combined with the previous work of Fabricant, Kent, & Kurtz, we have velocities for a total of 319 galaxies, of which 277 are cluster members. In addition to the new radial velocities, we present a 3x3 image mosaic in the R band of the central 19'x19' region of A2256, from which we obtained photometry for 861 galaxies. These data provide strong evidence for a merger event between two groups. In addition, we present evidence for the presence of a third group, on the outer reaches of the system, that is just now beginning to merge with the system.

Abstract Copyright:

Journal keyword(s): Galaxies: Clusters: Individual: Alphanumeric: A2256

VizieR on-line data: <Available at CDS (J/AJ/123/2261): table3.dat table10.dat>

Nomenclature: Table 3: [BLC2002] NNNN N=319 among (Nos 10-1080).

CDS comments: AGK 224: not identified, incomplete format.

Simbad objects: 346

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