{"id":472977,"date":"2025-10-04T06:45:18","date_gmt":"2025-10-04T06:45:18","guid":{"rendered":"https:\/\/www.europesays.com\/uk\/472977\/"},"modified":"2025-10-04T06:45:18","modified_gmt":"2025-10-04T06:45:18","slug":"a-newly-discovered-einsteins-cross-reveals-the-existence-of-a-giant-dark-matter-halo","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/uk\/472977\/","title":{"rendered":"A Newly Discovered \u2018Einstein\u2019s Cross\u2019 Reveals the Existence of a Giant Dark Matter Halo"},"content":{"rendered":"

\"This<\/p>\n

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

\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 statement<\/a>.<\/p>\n

A Giant Dark Matter Halo Revealed<\/p>\n

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

\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…\n","protected":false},"author":2,"featured_media":472978,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[23755,5632,6678,19168,70,413,16,15],"class_list":{"0":"post-472977","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-science","13":"tag-space","14":"tag-uk","15":"tag-united-kingdom"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@uk\/115314552023782808","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts\/472977","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/comments?post=472977"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts\/472977\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/media\/472978"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/media?parent=472977"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/categories?post=472977"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/tags?post=472977"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}