Open AccessA deep near‐infrared survey around the giant radio galaxy PKS 1343–601
Author(s) -
Nagayama T.,
Woudt P. A.,
Nagashima C.,
Nakajima Y.,
Kato D.,
Kurita M.,
Nagata T.,
Nakaya H.,
Tamura M.,
Sugitani K.,
Wakamatsu K.,
Sato S.
Publication year - 2004
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1111/j.1365-2966.2004.08277.x
Subject(s) - physics , astrophysics , astronomy , extinction (optical mineralogy) , galaxy , elliptical galaxy , brightest cluster galaxy , luminous infrared galaxy , type cd galaxy , optics
We present the results of a deep near‐infrared survey of a 36 × 36 arcmin 2 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 = 173 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 A K 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 A K 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.