TY - GEN
T1 - The Ophiuchus cluster and a large-scale structure towards the galactic centre
AU - Wakamatsu, K.
AU - Malkan, M. A.
AU - Nishida, M. T.
AU - Parker, Quentin A.
AU - Saunders, W.
AU - Watson, F. G.
PY - 2005
Y1 - 2005
N2 - The Ophiuchus Cluster is one of the most luminous X-ray clusters in the local Universe, and may be a key cluster for the local large-scale structure. Our preliminary redshift-survey with FLAIR and 6dF for the cluster shows the following: 1) a velocity dispersion of the Ophiuchus cluster is found to be 1050 ± 50 km s−1, which is consistent with its large X-ray luminosity, 2) the cluster accompanies several clusters and groups of galaxies within a distance of 8° from the cluster centre, implying that it is a large and massive enough to be classified as a supercluster, 3) from its closeness to the position of the Great Attractor in the sky, the Ophiuchus Supercluster may play some role in its gravitational potential, as may the Shapley Concentration, and 4) there is an extensive foreground void up to cz ≈ 4000 km s−1 in the survey area, implying that it is a continuation of the Local Void.
AB - The Ophiuchus Cluster is one of the most luminous X-ray clusters in the local Universe, and may be a key cluster for the local large-scale structure. Our preliminary redshift-survey with FLAIR and 6dF for the cluster shows the following: 1) a velocity dispersion of the Ophiuchus cluster is found to be 1050 ± 50 km s−1, which is consistent with its large X-ray luminosity, 2) the cluster accompanies several clusters and groups of galaxies within a distance of 8° from the cluster centre, implying that it is a large and massive enough to be classified as a supercluster, 3) from its closeness to the position of the Great Attractor in the sky, the Ophiuchus Supercluster may play some role in its gravitational potential, as may the Shapley Concentration, and 4) there is an extensive foreground void up to cz ≈ 4000 km s−1 in the survey area, implying that it is a continuation of the Local Void.
M3 - Conference proceeding contribution
SN - 1583811923
T3 - ASP Conference Series
SP - 189
EP - 198
BT - Astronomical Society of the Pacific conference series
PB - Astronomical Society of the Pacific
CY - Michigan, USA
T2 - Nearby Large-Scale Structures and the Zone of Avoidance
Y2 - 28 March 2004 through 2 April 2004
ER -