The architecture of Abell 1386 and its relationship to the Sloan Great Wall

Pimbblet, Kevin A., Andernach, Heinz, Fishlock, Cherie K., Roseboom, Isaac G. and Owers, Matthew S. (2011) The architecture of Abell 1386 and its relationship to the Sloan Great Wall. Monthly Notices of the Royal Astronomical Society, 410 3: 1837-1848. doi:10.1111/j.1365-2966.2010.17565.x


Author Pimbblet, Kevin A.
Andernach, Heinz
Fishlock, Cherie K.
Roseboom, Isaac G.
Owers, Matthew S.
Title The architecture of Abell 1386 and its relationship to the Sloan Great Wall
Journal name Monthly Notices of the Royal Astronomical Society   Check publisher's open access policy
ISSN 0035-8711
1365-2966
Publication date 2011-02
Sub-type Article (original research)
DOI 10.1111/j.1365-2966.2010.17565.x
Open Access Status DOI
Volume 410
Issue 3
Start page 1837
End page 1848
Total pages 12
Place of publication Oxford, United Kingdom
Publisher Oxford University Press
Collection year 2012
Language eng
Formatted abstract
We present new radial velocities from AAOmega on the Anglo-Australian Telescope for 307 galaxies (bJ < 19.5) in the region of the rich cluster Abell 1386. Consistent with other studies of galaxy clusters that constitute subunits of superstructures, we find that the velocity distribution of A1386 is very broad (21 000–42 000 km s−1, or z= 0.08–0.14) and complex. The mean redshift of the cluster that Abell designated as number 1386 is found to be ∼ 0.104. However, we find that it consists of various superpositions of line-of-sight components. We investigate the reality of each component by testing for substructure and searching for giant elliptical galaxies in each and show that A1386 is made up of at least four significant clusters or groups along the line of sight whose global parameters we detail. Peculiar velocities of brightest galaxies for each of the groups are computed and found to be different from previous works, largely due to the complexity of the sky area and the depth of analysis performed in the present work. We also analyse A1386 in the context of its parent superclusters: Leo A and especially the Sloan Great Wall. Although the new clusters may be moving towards mass concentrations in the Sloan Great Wall or beyond, many are most likely not yet physically bound to it.
Keyword Catalogues
Galaxies: clusters: individual: Abell 1386
Galaxies: distances and redshifts
Galaxies: elliptical and lenticular
cD
Galaxies: kinematics and dynamics
Large-scale structure of Universe
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Article first published online: 12 OCT 2010

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Official 2012 Collection
 
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Created: Sun, 06 Mar 2011, 00:05:33 EST