SIMBAD references

2004A&A...425..429C - Astronomy and Astrophysics, volume 425, 429-441 (2004/10-2)

Multiple merging in the Abell cluster 1367.


Abstract (from CDS):

We present a dynamical analysis of the central ∼1.3 square degrees of the cluster of galaxies Abell 1367, based on 273 redshift measurements (of which 119 are news). From the analysis of the 146 confirmed cluster members we derive a significantly non-Gaussian velocity distribution, with a mean location CBI=6484±81km/s and a scale SBI=891±58km/s. The cluster appears elongated from the North-West to the South-East with two main density peaks associated with two substructures. The North-West subcluster is probably in the early phase of merging into the South-East substructure (∼0.2Gyr before core crossing). A dynamical study of the two subclouds points out the existence of a group of star-forming galaxies infalling into the core of the South-East subcloud and suggests that two other groups are infalling into the NW and SE subclusters respectively. These three subgroups contain a higher fraction of star-forming galaxies than the cluster core, as expected during merging events. Abell 1367 appears as a young cluster currently forming at the intersection of two filaments.

Abstract Copyright:

Journal keyword(s): galaxies: clusters: individual: A1367 - galaxies: evolution - galaxies: distances and redshifts

VizieR on-line data: <Available at CDS (J/A+A/425/429): table7.dat>

Nomenclature: Table 7: [CGB2004b] JHHMMSS+DDMMSS N=119.

Simbad objects: 126

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