3-7 July 2023
University of Zululand
Africa/Johannesburg timezone
The Proceedings of SAIP2023 Published: 20 December 2023

Combining large radio and optical astronomical surveys: exploring the MeerKAT Galaxy Cluster Legacy Survey

4 Jul 2023, 15:40
2h
University of Zululand

University of Zululand

Poster Presentation Track D1 - Astrophysics Poster Session 1

Speaker

Mr S.J.J. Nel

Description

We are entering an era of large radio and optical astronomical surveys, particularly for the Southern Hemisphere. One challenge is to effectively combine and cross-match source catalogues from surveys in different wavelengths, thereby maximising the science impact of surveys. We use the Likelihood Ratio method to cross-match compact source catalogues extracted from the MeerKAT Galaxy Cluster Legacy Survey (MGCLS) with optical sources detected in the Dark Energy Camera Legacy Survey (DECaLS). These matched catalogues can now be further explored for various science applications, and to possibly improve the cross-matching method for future surveys. For this presentation, we contrast and test two different methods to evaluate the “Reliability” and “Completeness” of the cross-matching method and the resulting catalogues to determine which method is better suited for optimally combining large radio and optical surveys.

Level for award;(Hons, MSc, PhD, N/A)?

MSc

Apply to be considered for a student ; award (Yes / No)? Yes

Primary authors

Mr S.J.J. Nel Prof. SI Loubser

Presentation Materials

There are no materials yet.

Peer reviewing

Paper