Open AccessA sample of galaxies near the South Celestial Pole
Author(s) -
Fairall A. P.,
Woudt P. A.
Publication year - 2006
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.1365-2966.2005.09859.x
Subject(s) - physics , astrophysics , galaxy , redshift , astronomy , void (composites) , latitude , redshift survey , materials science , composite material
This paper reports the results of a modest redshift survey carried out, at generally low Galactic latitudes, in the vicinity of the South Celestial Pole. Target galaxies were selected as a ‘representative’ sample of underlying large‐scale structures. Dimensions, approximate magnitudes and radial velocity measurements, are reported for 336 galaxies. Two obvious Seyfert 1 galaxies, one probably Seyfert 1 and three Seyfert 2 galaxies have been discovered. The redshifts are used to supplement existing data and serve to map southern voids and features out to 25 000 km s −1 in the region 270° < l < 330°, 0° > b > −45° . Three distinct superclusters and twenty apparent voids are tentatively identified. One Void, at l = 300°, b =−20°, cz = 16 000 km s −1 , with a diameter of 6000 km s −1 , is as large as any yet mapped. It appears as part of a general underdense region.