{"id":215493,"date":"2025-06-06T05:16:05","date_gmt":"2025-06-06T10:16:05","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2025\/06\/astronomers-observe-the-sausage-cluster-at-very-low-radio-frequencies"},"modified":"2025-06-06T05:16:05","modified_gmt":"2025-06-06T10:16:05","slug":"astronomers-observe-the-sausage-cluster-at-very-low-radio-frequencies","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2025\/06\/astronomers-observe-the-sausage-cluster-at-very-low-radio-frequencies","title":{"rendered":"Astronomers observe the Sausage cluster at very low radio frequencies"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/astronomers-observe-the-sausage-cluster-at-very-low-radio-frequencies2.jpg\"><\/a><\/p>\n<p>Using the Low Frequency Array (LOFAR), European astronomers have investigated a galaxy cluster designated CIZA J2242.8+5301, dubbed the Sausage cluster. The observations conducted at very low radio frequencies provide more insights into the properties of radio relics in this cluster. The new findings are presented in a research paper <a href=\"https:\/\/arxiv.org\/abs\/2505.23402\" target=\"_blank\">published<\/a> May 29 on the <i>arXiv<\/i> preprint server.<\/p>\n<p>Galaxy clusters consist of up to thousands of galaxies bound together by gravity. They are the largest known gravitationally-bound structures in the universe, and therefore serve as excellent laboratories for studying galaxy evolution and cosmology. Observations show that galaxy clusters generally form as a result of mergers and grow by accreting sub-clusters.<\/p>\n<p>CIZA J2242.8+5301 is a well-studied merging <a href=\"https:\/\/phys.org\/tags\/galaxy+cluster\/\" rel=\"tag\" class=\"\">galaxy cluster<\/a> at a redshift of 0.192. It contains prominent double radio relics (diffuse, elongated radio sources of synchrotron origin) and other diffuse radio sources. CIZA J2242.8+5301 was nicknamed the Sausage cluster due to the distinctive morphology of its northern relic.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Using the Low Frequency Array (LOFAR), European astronomers have investigated a galaxy cluster designated CIZA J2242.8+5301, dubbed the Sausage cluster. The observations conducted at very low radio frequencies provide more insights into the properties of radio relics in this cluster. The new findings are presented in a research paper published May 29 on the arXiv [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33,385],"tags":[],"class_list":["post-215493","post","type-post","status-publish","format-standard","hentry","category-cosmology","category-evolution"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/215493","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/427"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=215493"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/215493\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=215493"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=215493"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=215493"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}