Astronomy and Astrophysics – Astronomy
Scientific paper
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.
Kato Daisuke
Nagashima Chie
Nagata Takahiro
Nagayama Taka
Nakaya Hidehiko
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