Extended Radio Emission in the Perhipheral Regions of the Shapley Concentration Core

Journal
Date Issued
2017
Author(s)
•
•
•
•
•
Giacintucci, Simona
•
DOI
Abstract
The Shapley Concentration (SC) is a galaxy supercluster (few tens of degrees) in the Local Universe (∼0.048) which is currently undergoing cluster mergers and group accretion. It is a diversified environment, with cluster complexes in advanced evolutionary stage, groups of clusters in the very early stages of merger, fairly massive clusters with ongoing accretion activity, and smaller groups located in filaments. These features make the SC an ideal place to observe the signatures of the formation of large-scale structures in the Universe. As a matter of fact, the SC has been observed over a broad range of frequencies with the most important observatories, allowing for a unique multiband study. In this paper, we will present new results from an ongoing study of the Shapley Concentration Core, which is being carried out with the Giant Metrewave Radio Telescope (GMRT). Our work confirms the role played by radio observations in disentangling the details of the accretion and merging processes, and delivers a wealth of information in regions well outside the cluster cores. In particular, we will report on the discovery of a relic in the region between the two clusters A 3558 and A 3562, and of the radio properties of the brightest galaxy in the peripheral cluster A 3556.
Volume
5
Issue
1
Start page
16
Uri
Url
Issn Identifier
2075-4434
Ads BibCode
2017Galax...5...16V
Rights
open.access
File(s)
Loading...
Thumbnail Image
Name

galaxies-05-00016.pdf

Description
PDF editoriale
Size

3.21 MB

Format

Adobe PDF

Checksum (MD5)

a319acb7a947e50b8446ab7cf05925d5