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http://hdl.handle.net/20.500.12386/29653
Titolo: | Rotation measure synthesis applied to synthetic SKA images of galaxy clusters | Autori: | LOI, FRANCESCA MURGIA, MATTEO GOVONI, FEDERICA VACCA, VALENTINA BONAFEDE, ANNALISA FERRARI, CLAUDIO PRANDONI, ISABELLA FERETTI, LUIGINA Giovannini, Gabriele LI, HUI |
Data pubblicazione: | 2019 | Rivista: | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | Numero: | 490 | Fascicolo: | 4 | Da pagina:: | 4841 | Abstract: | Future observations with next-generation radio telescopes will help us to understand the presence and evolution of magnetic fields in galaxy clusters through determination of the so-called rotation measure (RM). In this work, we applied the RM synthesis technique to synthetic first phase Square Kilometre Array mid frequency element (i.e. the SKA1-MID) radio images of a pair of merging galaxy clusters, measured between 950 and 1750 MHz with a resolution of 10 arcsec and thermal noise of 0.1μJy beam-1. The results of our RM synthesis analysis are compared with the simulation input parameters. We study two cases: one with radio haloes at the cluster centres and another without. We found that the information obtained with RM synthesis is in general agreement with the input information; however, some discrepancies are present. We characterize them in this work, with the final goal of determining the potential impact of SKA1-MID on the study of cluster magnetic fields. | URI: | http://hdl.handle.net/20.500.12386/29653 | URL: | https://academic.oup.com/mnras/article-abstract/490/4/4841/5620477 | ISSN: | 0035-8711 | DOI: | 10.1093/mnras/stz2699 | Bibcode ADS: | 2019MNRAS.490.4841L | Fulltext: | open |
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