The thermal and non-thermal components within and between galaxy clusters Abell 399 and Abell 401

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dc.contributor.authorRadiconi, Federico
dc.contributor.authorVacca, Valentina
dc.contributor.authorBattistelli, Elia
dc.contributor.authorBonafede, Annalisa
dc.contributor.authorCapalbo, Valentina
dc.contributor.authorDevlin, Mark J.
dc.contributor.authorDi Mascolo, Luca
dc.contributor.authorFeretti, Luigina
dc.contributor.authorGallardo, Patricio A.
dc.contributor.authorGill, Ajay
dc.contributor.authorGiovannini, Gabriele
dc.contributor.authorGovoni, Federica
dc.contributor.authorGuan, Yilun
dc.contributor.authorHilton, Matt
dc.contributor.authorHincks, Adam D.
dc.contributor.authorHughes, John P.
dc.contributor.authorIacobelli, Marco
dc.contributor.authorIsopi, Giovanni
dc.contributor.authorLoi, Francesca
dc.contributor.authorMoodley, Kavilan
dc.contributor.authorMroczkowski, Tony
dc.contributor.authorMurgia, Matteo
dc.contributor.authorOrru, Emanuela
dc.contributor.authorPaladino, Rosita
dc.contributor.authorPartridge, Bruce
dc.contributor.authorSarazin, Craig L.
dc.contributor.authorScherer, Jack Orlowski
dc.contributor.authorSifon, Cristobal
dc.contributor.authorVargas, Cristian
dc.contributor.authorVazza, Franco
dc.contributor.authorWollack, Edward J.
dc.date.accessioned2025-01-20T21:01:28Z
dc.date.available2025-01-20T21:01:28Z
dc.date.issued2022
dc.description.abstractWe measure the local correlation between radio emission and Compton-y signal across two galaxy clusters, Abell 399 and Abell 401, using maps from the Low Frequency Array and the Atacama Cosmology Telescope + Planck. These data sets allow us to make the first measurement of this kind at similar to arcmin resolution. We find that the radio brightness scales as F-radio proportional to y(1.5) for Abell 401 and F-radio proportional to y(2.8) for Abell 399. Furthermore, using XMM-Newton data, we derive a sublinear correlation between radio and X-ray brightness for both the clusters (F-radio proportional to F-X(0.7)). Finally, we correlate the Compton-y and X-ray data, finding that an isothermal model is consistent with the cluster profiles, y proportional to F-X(0.5). By adopting an isothermal-beta model, we are able, for the first time, to jointly use radio, X-ray, and Compton-y data to estimate the scaling index for the magnetic field profile, B(r) proportional to n(e)(r)(eta) in the injection and re-acceleration scenarios. Applying this model, we find that the combined radio and Compton-y signal exhibits a significantly tighter correlation with the X-ray across the clusters than when the data sets are independently correlated. We find eta similar to 0.6-0.8. These results are consistent with the upper limit we derive for the scaling index of the magnetic field using rotation measure values for two radio galaxies in Abell 401. We also measure the radio, Compton-y, and X-ray correlations in the filament between the clusters but conclude that deeper data are required for a convincing determination of the correlations in the filament.
dc.fuente.origenWOS
dc.identifier.doi10.1093/mnras/stac3015
dc.identifier.eissn1365-2966
dc.identifier.issn0035-8711
dc.identifier.urihttps://doi.org/10.1093/mnras/stac3015
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/92890
dc.identifier.wosidWOS:000881809000010
dc.issue.numero4
dc.language.isoen
dc.pagina.final5246
dc.pagina.inicio5232
dc.revistaMonthly notices of the royal astronomical society
dc.rightsacceso restringido
dc.subjectradiation mechanisms: non-thermal
dc.subjectradiation mechanisms: thermal
dc.subjectgalaxies: clusters: individual: Abell 399
dc.subjectAbell 401
dc.subjectgalaxies: clusters: intracluster medium
dc.titleThe thermal and non-thermal components within and between galaxy clusters Abell 399 and Abell 401
dc.typeartículo
dc.volumen517
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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