{"id":233696,"date":"2026-03-20T03:16:56","date_gmt":"2026-03-20T08:16:56","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2026\/03\/desi-maps-c-19-an-extremely-metal-poor-milky-way-stellar-stream"},"modified":"2026-03-20T03:16:56","modified_gmt":"2026-03-20T08:16:56","slug":"desi-maps-c-19-an-extremely-metal-poor-milky-way-stellar-stream","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2026\/03\/desi-maps-c-19-an-extremely-metal-poor-milky-way-stellar-stream","title":{"rendered":"DESI maps C-19, an extremely metal-poor Milky Way stellar stream"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/desi-maps-c-19-an-extremely-metal-poor-milky-way-stellar-stream2.jpg\"><\/a><\/p>\n<p>Using the Mayall 4-meter telescope at Kitt Peak National Observatory, an international team of astronomers has observed C-19\u2014an extremely metal-poor stellar stream in the Milky Way\u2019s halo. Results of the observational campaign, <a href=\"https:\/\/arxiv.org\/abs\/2603.11171\" target=\"_blank\">published<\/a> March 11 on the <i>arXiv<\/i> pre-print server, provide crucial insights into the properties of this stellar stream.<\/p>\n<p>Stellar streams are remnants of dwarf galaxies or globular clusters (GCs) that once orbited a galaxy but have been disrupted and stretched out along their orbits by tidal forces of their hosts. Observations show that many stellar streams are elongated debris of tidally disrupted globular clusters.<\/p>\n<p>Studies of galactic stellar streams could answer some crucial questions about the Milky Way. For instance, they could help us understand the large-scale <a href=\"https:\/\/phys.org\/news\/2024-02-astronomers-effect-dark-evolution-galaxies.html?utm_source=embeddings&utm_medium=related&utm_campaign=internal\" rel=\"related\">mass distribution<\/a> of the galactic dark matter halo. Moreover, the investigation of stellar streams could confirm whether or not our galaxy contains low-mass dark matter subhalos.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Using the Mayall 4-meter telescope at Kitt Peak National Observatory, an international team of astronomers has observed C-19\u2014an extremely metal-poor stellar stream in the Milky Way\u2019s halo. Results of the observational campaign, published March 11 on the arXiv pre-print server, provide crucial insights into the properties of this stellar stream. Stellar streams are remnants of [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33,1965],"tags":[],"class_list":["post-233696","post","type-post","status-publish","format-standard","hentry","category-cosmology","category-mapping"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/233696","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=233696"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/233696\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=233696"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=233696"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=233696"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}