Prospects for Multimessenger Observations of the Shapley Supercluster

Prospects for Multimessenger Observations of the Shapley Supercluster

The Shapley Supercluster, one of the largest and most massive structures in the nearby (redshift <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>z</mi><mo>≤</mo><mn>0.1<...

Full description

Saved in:
Bibliographic Details
Main Authors: Valentyna Babur, Olexandr Gugnin, Bohdan Hnatyk
Format: Article
Language:English
Published: MDPI AG 2025-07-01
Series:Universe
Subjects:
multimessenger astronomy
galaxy clusters
Shapley Supercluster
cosmic rays
astrophysical neutrino
non-thermal emission
Online Access:https://www.mdpi.com/2218-1997/11/7/239
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The Shapley Supercluster, one of the largest and most massive structures in the nearby (redshift <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>z</mi><mo>≤</mo><mn>0.1</mn></mrow></semantics></math></inline-formula>) Universe, located approximately 200 Mpc away, is a unique laboratory for high-energy astrophysics. Galaxy clusters that comprise it are promising targets for multimessenger study due to the presence in the intracluster medium of the necessary conditions for the acceleration of cosmic rays up to ultra-high energies and the generation by them of non-thermal electromagnetic and neutrino emission. Using the Shapley Supercluster’s observational data from the recent eROSITA-DE Data Release, we recover the physical parameters of 45 X-ray luminous galaxy clusters and calculate the expected multiwavelength—from radio to very-high-energy γ-ray as well as neutrino emission, with a particular focus on hadronic interactions of accelerated cosmic ray nuclei with the nuclei of the intracluster medium. The results obtained allow verification of cluster models based on multimessenger observations of clusters, especially in <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>γ</mi></semantics></math></inline-formula>-ray (<i>Fermi</i>-LAT, H.E.S.S., CTAO-South for the Shapley Supercluster case), and neutrino (Ice Cube, KM3NeT). We also estimate the ability of the Shapley Supercluster to manifest as cosmic Zevatrons and show that it can contribute to the PAO Hot Spot in the Cen A region at UHECR energies over 50 EeV.
ISSN:2218-1997

Similar Items