A deep near-infrared survey around the giant radio galaxy PKS 1343-601

Details A deep near-infrared survey around the giant radio galaxy PKS 1343-601 A deep near-infrared survey around the giant radio galaxy PKS 1343-601

Nov 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004mnras.354..980n&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 354, Issue 4, pp. 980-990.

Astronomy and Astrophysics

Astronomy

12

Surveys, Dust, Extinction, Galaxies: Clusters: General, Galaxies: Fundamental Parameters, Galaxies: Individual: Pks 1343-601, Infrared: Galaxies

Scientific paper

We present the results of a deep near-infrared survey of a 36 × 36 arcmin2 region centred on the giant elliptical radio galaxy PKS 1343-601, suggested to be the core of an unknown rich cluster located at the low Galactic latitude of b= 1.°73 in the Great Attractor (GA) region. 19 obvious galaxies and 38 galaxy candidates have been detected; only three of them were previously identified as a galaxy. The total Galactic extinction AK towards our survey area is estimated to be 0.6-0.8 mag from the J-K colour of foreground giants. This is systematically lower by about 0.4 mag than AK taken from the IRAS/DIRBE extinction map. The number density of galaxies brighter than an extinction-corrected Ks band magnitude of 13 is 42 galaxies deg-2, five times as high as the overall average in the GA region. However, the number of galaxies within the central 270-kpc radius is less than that of the Norma, Pavo and Centaurus clusters in the GA region. We found no evidence that a rich cluster is associated with PKS 1343-601.

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