Near-infrared study of CIZA J1324.7-5736, the second richest cluster of galaxies in the Great Attractor

Details Near-infrared study of CIZA J1324.7-5736, the second richest cluster of galaxies in the Great Attractor Near-infrared study of CIZA J1324.7-5736, the second richest cluster of galaxies in the Great Attractor

May 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006mnras.368..534n&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 368, Issue 2, pp. 534-543.

Astronomy and Astrophysics

Astronomy

3

Surveys, Dust, Extinction, Galaxies: Clusters: General, Galaxies: Clusters: Individual: Ciza J1324.7-5736, Galaxies: Fundamental Parameters, Infrared: Galaxies

Scientific paper

We present the result of a deep near-infrared survey of the newly identified X-ray luminous cluster of galaxies CIZA J1324.7-5736 in the Great Attractor (GA) region. In a 35 × 35 arcmin2 region, 111 galaxy candidates with rKs20 > arcsec are identified. Comparison of the extinction-corrected Ks-band luminosity function of CIZA J1324.7-5736 with those of nearby clusters indicates that the richness class of CIZA J1324.7-5736 is almost the same as, or richer than, the Pavo, Centaurus and Hydra clusters but poorer than the Coma, Perseus and Norma clusters. CIZA J1324.7-5736 is possibly the second richest cluster in the GA region following the Norma cluster. The position of CIZA J1324.7-5736 [in the (l, b, v) space] is close to the Centaurus-Crux cluster and the agglomeration of galaxies detected by the Parkes HI survey. CIZA J1324.7-5736, together with the Centaurus-Crux cluster and the HI galaxy agglomeration, is most likely to be one of the richest local concentrations in the GA overdensity of galaxies.

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