{"id":219442,"date":"2025-08-05T12:05:37","date_gmt":"2025-08-05T17:05:37","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2025\/08\/sweeping-survey-maps-hundreds-of-satellite-systems-orbiting-dwarf-galaxies"},"modified":"2025-08-05T12:05:37","modified_gmt":"2025-08-05T17:05:37","slug":"sweeping-survey-maps-hundreds-of-satellite-systems-orbiting-dwarf-galaxies","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2025\/08\/sweeping-survey-maps-hundreds-of-satellite-systems-orbiting-dwarf-galaxies","title":{"rendered":"Sweeping survey maps hundreds of satellite systems orbiting dwarf galaxies"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/sweeping-survey-maps-hundreds-of-satellite-systems-orbiting-dwarf-galaxies.jpg\"><\/a><\/p>\n<p>We usually think of satellites as small objects orbiting planets or stars. But in the broader universe, galaxies themselves can have satellites\u2014smaller galaxies bound by gravity that orbit a larger host, carrying with them stars, gas, dust, and dark matter.<\/p>\n<p>Most of what we know about satellite galaxies comes from studying the Milky Way and other similarly large galaxies. But a new study led by Dartmouth astronomers broadens that understanding by exploring the satellites of dwarf galaxies\u2014systems less than a tenth the size of the Milky Way.<\/p>\n<p>The multi-institutional survey triples the number of dwarf galaxies surveyed for satellites, the researchers <a href=\"https:\/\/iopscience.iop.org\/article\/10.3847\/1538-4357\/ade9a4\" target=\"_blank\">report<\/a> in <i>The Astrophysical Journal<\/i>. The study identifies 355 candidate satellite galaxies, including 264 that were previously undocumented. The researchers suggest that 134 of these candidates are highly likely to be satellite galaxies.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>We usually think of satellites as small objects orbiting planets or stars. But in the broader universe, galaxies themselves can have satellites\u2014smaller galaxies bound by gravity that orbit a larger host, carrying with them stars, gas, dust, and dark matter. Most of what we know about satellite galaxies comes from studying the Milky Way and [\u2026]<\/p>\n","protected":false},"author":732,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33,1965,2028],"tags":[],"class_list":["post-219442","post","type-post","status-publish","format-standard","hentry","category-cosmology","category-mapping","category-satellites"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/219442","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\/732"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=219442"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/219442\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=219442"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=219442"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=219442"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}