{"id":4570,"date":"2019-03-07T13:02:50","date_gmt":"2019-03-07T12:02:50","guid":{"rendered":"https:\/\/www.oa-cagliari.inaf.it\/seminari\/observations-of-a-nearby-filament-of-galaxy-clusters\/"},"modified":"2019-03-07T13:02:50","modified_gmt":"2019-03-07T12:02:50","slug":"observations-of-a-nearby-filament-of-galaxy-clusters","status":"publish","type":"seminari","link":"https:\/\/www.oa-cagliari.inaf.it\/en\/seminars\/observations-of-a-nearby-filament-of-galaxy-clusters\/","title":{"rendered":"Observations of a Nearby Filament of Galaxy Clusters"},"content":{"rendered":"

\"Observations<\/p>\n

During this talk, I intend to present radio observations with the Sardinia Radio Telescope (SRT) of a region of the sky of 8\u00b0x8\u00b0, likely associated with an over-density traced by nine massive galaxy clusters at z\u22480.1. The combination of the SRT data with observations from the NRAO VLA Sky Survey revealed the presence of 28 new diffuse synchrotron radio sources with radio emissivity and X-ray luminosity 10-100 times fainter than known diffuse synchrotron cluster sources (radio halos and relics). The comparison with magneto-hydro-dynamical simulations suggests that this population is potentially the tip of the iceberg of a class of diffuse large-scale synchrotron sources associated with the filaments of the cosmic web and corresponding to magnetic field strengths of ~20-50 nG. <\/p>\n

 <\/p>\n

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Today, Astro Chiacchiere! is an informal meeting among the staff of the Cagliari Astronomical Observatory (staff, postdocs, and students), aimed at discussing topics mainly of a scientific, technological, and informational nature about the Observatory’s activities. The meeting usually takes place on Tuesdays at 11:30 AM in the Auditorium of the Cagliari Astronomical Observatory. For information and\/or contributions, contact vvacca@oa-cagliari.inaf.it and surcis@oa-cagliari.inaf.it <\/em><\/p>\n","protected":false},"template":"","class_list":["post-4570","seminari","type-seminari","status-publish","hentry","categorie_seminari-astro-chiacchiere"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.oa-cagliari.inaf.it\/en\/wp-json\/wp\/v2\/seminari\/4570","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.oa-cagliari.inaf.it\/en\/wp-json\/wp\/v2\/seminari"}],"about":[{"href":"https:\/\/www.oa-cagliari.inaf.it\/en\/wp-json\/wp\/v2\/types\/seminari"}],"wp:attachment":[{"href":"https:\/\/www.oa-cagliari.inaf.it\/en\/wp-json\/wp\/v2\/media?parent=4570"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}