{"id":178502,"date":"2025-10-04T05:47:09","date_gmt":"2025-10-04T05:47:09","guid":{"rendered":"https:\/\/www.newsbeep.com\/uk\/178502\/"},"modified":"2025-10-04T05:47:09","modified_gmt":"2025-10-04T05:47:09","slug":"a-newly-discovered-einsteins-cross-reveals-the-existence-of-a-giant-dark-matter-halo","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/uk\/178502\/","title":{"rendered":"A Newly Discovered \u2018Einstein\u2019s Cross\u2019 Reveals the Existence of a Giant Dark Matter Halo"},"content":{"rendered":"<p><img decoding=\"async\" alt=\"This illustration explains how the light from HerS3 formed an Einsteins cross made up of five parts.\" loading=\"lazy\" class=\"ResponsiveImageContainer-eNxvmU cfBbTk responsive-image__image\"   src=\"https:\/\/www.newsbeep.com\/uk\/wp-content\/uploads\/2025\/10\/20250916-Cox-et-al.-ALMA-image-infographic-1536x864.jpg\"\/><\/p>\n<p class=\"paywall\">The gravitational lensing not only splits the light source, but magnifies it, allowing a detailed view of the light source behind the lens. Thanks to this, the team says that HerS-3 appears to be a bright starburst galaxy\u2014a galaxy undergoing explosive star formation\u2014and was formed at a time when star formation was at its peak throughout the universe. HerS-3 also has a tilted, rotating disk, from the center of which gas is gushing out at a furious rate, the team say.<\/p>\n<p class=\"paywall\">\u201cThanks to this natural telescope, we can zoom into regions 10 times smaller than the Milky Way, almost 12 billion light-years away, and in the process infer hidden matter in the light-of-sight,\u201d said Hugo Mesias, a coauthor of the paper, in a <a data-offer-url=\"https:\/\/www.almaobservatory.org\/en\/press-releases\/an-exceptional-einstein-cross-reveals-hidden-dark-matter\/\" class=\"external-link\" data-event-click=\"{&quot;element&quot;:&quot;ExternalLink&quot;,&quot;outgoingURL&quot;:&quot;https:\/\/www.almaobservatory.org\/en\/press-releases\/an-exceptional-einstein-cross-reveals-hidden-dark-matter\/&quot;}\" href=\"https:\/\/www.almaobservatory.org\/en\/press-releases\/an-exceptional-einstein-cross-reveals-hidden-dark-matter\/\" rel=\"nofollow noopener\" target=\"_blank\">statement<\/a>.<\/p>\n<p>A Giant Dark Matter Halo Revealed<\/p>\n<p class=\"paywall\">At first glance, the Einstein\u2019s cross of HerS-3 appears to have been created solely by gravitational lensing generated by the four giant galaxies located between HerS-3 and Earth. However, using a precise model of gravitational lensing, the team found that the observable mass of these four giant galaxies is insufficient to explain the arrangement of the five images of the cross: their mass is simply not great enough to produce the visual effect seen.<\/p>\n<p class=\"paywall\">\u201cThe only way to reproduce the remarkable configuration we observed was to add an invisible, massive component: a dark matter halo at the center of the galaxy group,\u201d said lead author Pierre Cox,\u00a0from the Institut d\u2019Astrophysique de Paris.<\/p>\n","protected":false},"excerpt":{"rendered":"The gravitational lensing not only splits the light source, but magnifies it, allowing a detailed view of the&hellip;\n","protected":false},"author":2,"featured_media":178503,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[16942,11745,13618,21870,59,90,416,56,54,55],"class_list":{"0":"post-178502","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-science","8":"tag-albert-einstein","9":"tag-astrophysics","10":"tag-dark-matter","11":"tag-galaxies","12":"tag-gb","13":"tag-science","14":"tag-space","15":"tag-uk","16":"tag-united-kingdom","17":"tag-unitedkingdom"},"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts\/178502","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/comments?post=178502"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/posts\/178502\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/media\/178503"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/media?parent=178502"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/categories?post=178502"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/uk\/wp-json\/wp\/v2\/tags?post=178502"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}