{"id":190527,"date":"2024-06-03T00:24:17","date_gmt":"2024-06-03T05:24:17","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2024\/06\/dark-matter-could-make-our-galaxys-innermost-stars-immortal"},"modified":"2024-06-03T00:24:17","modified_gmt":"2024-06-03T05:24:17","slug":"dark-matter-could-make-our-galaxys-innermost-stars-immortal","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2024\/06\/dark-matter-could-make-our-galaxys-innermost-stars-immortal","title":{"rendered":"Dark matter could make our galaxy\u2019s innermost stars immortal"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/dark-matter-could-make-our-galaxys-innermost-stars-immortal3.jpg\"><\/a><\/p>\n<p>They calculated stellar populations without and with the presence of dark matter. With dark matter, more massive stars experienced a lower dark matter density, and hydrogen in their core fused more slowly and their evolution was slowed down. But stars in a higher dark matter density region were changed significantly\u2014they maintained equilibrium through dark matter burning with less fusion or no fusion, which led to a new stellar population in an HR region above the main sequence.<\/p>\n<p>\u201cOur simulations show that stars can survive on dark matter as a fuel alone,\u201d said lead co-author Isabelle John from Stockholm University, \u201cand because there is an extremely large amount of dark matter near the Galactic Center, these stars become immortal,\u201d staying forever young, occupying a new, distinct, observable region of the HR diagram.<\/p>\n<p>Their <a href=\"https:\/\/phys.org\/tags\/dark+matter\/\" rel=\"tag\" class=\"\">dark matter<\/a> model may be able to explain more of the known mysteries. \u201cFor lighter stars, we see in our simulations that they become very puffy and might even lose parts of their outer layers,\u201d said John. She noted that \u201csomething similar to this might be observed at the Galactic Center: the so-called G-objects, which might be star-like, but with a gas cloud around them.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"<p>They calculated stellar populations without and with the presence of dark matter. With dark matter, more massive stars experienced a lower dark matter density, and hydrogen in their core fused more slowly and their evolution was slowed down. But stars in a higher dark matter density region were changed significantly\u2014they maintained equilibrium through dark matter [\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-190527","post","type-post","status-publish","format-standard","hentry","category-cosmology","category-evolution"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/190527","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=190527"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/190527\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=190527"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=190527"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=190527"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}