| Name: sai wagh |
| Affiliation: International Centre for Radio Astronomy & Research |
| Conference ID: ASI2026_75 |
| Title: Bridging the gap: The statistical study of diffuse radio emission in galaxy groups using AKSAP data |
| Abstract Type: Poster |
| Abstract Category: Galaxies and Cosmology |
| Author(s) and Co-Author(s) with Affiliation: Sai Wagh(International Centre for Radio Astronomy and Research), Tessa Vernstrom(International Centre for Radio Astronomy and Research and CSIRO), Luke Davies(International Centre for Radio Astronomy and Research), Lister Staveley Smith(International Centre for Radio Astronomy and Research) |
| Abstract: The discovery of diffuse radio emission in galaxy clusters has been key to understanding the physical non-thermal processes shaping large-scale structures. Although when it comes to galaxy groups, they are not contemplated as distinct astrophysical systems but rather as low-mass extensions of galaxy clusters. In reality, galaxy groups are different from galaxy clusters in many ways. Groups are common yet critical environments for studying galaxy evolution, the nature Intra-group Medium (IGrM), and the large scale structure formation in the Universe. Using Australian Square Kilometre Array Pathfinder's (ASKAP’s) deep radio continuum data from the Evolutionary Map of the Universe (EMU) and Deep Investigations of Neutral Gas Origins (DINGO) surveys, we aim to map faint diffuse radio emissions associated with the IGrM, such as halos, relics, fossil plasma, etc. These features may originate from Active Galactic Nuclei (AGN) activity, shock fronts, or turbulence within the group environment. Our goal is to identify and characterise these emissions across a statistically significant sample, and to study potential scaling relations between diffuse radio emission and group properties. This work will provide critical insights into the role of non-thermal processes in low-mass systems and assess whether the scaling relations observed in galaxy clusters extend into the group regime or not, contributing to a more unified understanding of structure formation across mass scales. |
