Rotation measure synthesis applied to synthetic SKA images of galaxy clusters
In: Mon.Not.Roy.Astron.Soc. ; https://hal.science/hal-02393587 ; Mon.Not.Roy.Astron.Soc., 2019, 490 (4), pp.4841-4857. ⟨10.1093/mnras/stz2699⟩, 2019
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Zugriff:
International audience ; 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.
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Rotation measure synthesis applied to synthetic SKA images of galaxy clusters
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Autor/in / Beteiligte Person: | Loi, F. ; Murgia, M. ; Govoni, F. ; Vacca, V. ; Bonafede, A. ; Ferrari, C. ; Prandoni, I. ; Feretti, L. ; Giovannini, G. ; Li, H. ; Observatoire de la Côte d'Azur (OCA) ; Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
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Zeitschrift: | Mon.Not.Roy.Astron.Soc. ; https://hal.science/hal-02393587 ; Mon.Not.Roy.Astron.Soc., 2019, 490 (4), pp.4841-4857. ⟨10.1093/mnras/stz2699⟩, 2019 |
Veröffentlichung: | HAL CCSD, 2019 |
Medientyp: | academicJournal |
DOI: | 10.1093/mnras/stz2699 |
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