Does the Corona Borealis Supercluster form a giant binary-like system?

Giovanni C. Baiesi Pillastrini
2016 Astrophysics and Space Science  
The distribution of local gravitational potentials generated by a complete volume-limited sample of galaxy groups and clusters filling the Corona Borealis region has been derived to search for new gravitational hints in the context of clus-tering analysis unrevealed by alternative methodologies. Mapping such a distribution as a function of spatial positions, the deepest potential wells in the sample trace unambiguously the locations of the densest galaxy cluster clumps providing the physical
more » ... s to bring out gravitational features connected to the formation, composition and evolution of the major clustered structures filling that region. As expected, the three deepest potential wells found at Equatorial coordinates: ( 230, 28, z 0.075), ( 240, 27, z 0.09) and, (227, 5.8, z 0.0788) correspond to massive superclusters of galaxy groups and clusters identified as the Corona Borealis, A2142 and Virgo-Serpent, respectively. However, the deepest isopotential contours around the Corona Borealis and A2142 superclusters seem to suggest a gravitational feature similar to a giant binary-like system connected by a filamentary structure. To a first approximation, it seems unlikely that this hypothesized system could be gravitationally bound.
doi:10.1007/s10509-016-2762-8 fatcat:o63yb4h5yvhnlp74oxbbs6qp3u