{"id":235546,"date":"2026-04-20T06:18:48","date_gmt":"2026-04-20T11:18:48","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2026\/04\/these-blazing-blue-explosions-may-be-born-when-a-compact-dead-star-slams-into-a-wolf-rayet-star"},"modified":"2026-04-20T06:18:48","modified_gmt":"2026-04-20T11:18:48","slug":"these-blazing-blue-explosions-may-be-born-when-a-compact-dead-star-slams-into-a-wolf-rayet-star","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2026\/04\/these-blazing-blue-explosions-may-be-born-when-a-compact-dead-star-slams-into-a-wolf-rayet-star","title":{"rendered":"These blazing blue explosions may be born when a compact dead star slams into a Wolf-Rayet star"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/these-blazing-blue-explosions-may-be-born-when-a-compact-dead-star-slams-into-a-wolf-rayet-star.jpg\"><\/a><\/p>\n<p>Luminous fast blue optical transients (LFBOTs) are among the universe\u2019s brightest and fastest explosions but their origin is not completely understood. A new study takes a closer look at the galaxies they occur in, offering two important clues about their nature. A paper outlining these results was uploaded to the preprint server <a href=\"https:\/\/arxiv.org\/abs\/2603.23597\" target=\"_blank\"><i>arXiv<\/i><\/a> on March 24.<\/p>\n<p>LFBOTs are called cow-like events, nicknamed after the first member of this class\u2014AT2018cow\u2014discovered in 2018. They are extremely bright explosions whose brightness peaks within a week and fades to half its peak value in the following week. Their peak brightness is typically greater than 10<sup>43<\/sup> erg per second at optical wavelengths. This is comparable with that of superluminous supernovae, which take a few weeks to months to peak and are generally 10 to 100 times brighter than normal supernovae.<\/p>\n<p>Moreover, LFBOTs\u2019 light curve\u2014a graph that shows changes in their brightness over time\u2014cannot be explained by the decay of nickel-56, which is a common energy source for normal and core-collapse supernovae. There are several theories for their origins; however, there is a lack of consensus.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Luminous fast blue optical transients (LFBOTs) are among the universe\u2019s brightest and fastest explosions but their origin is not completely understood. A new study takes a closer look at the galaxies they occur in, offering two important clues about their nature. A paper outlining these results was uploaded to the preprint server arXiv on March [\u2026]<\/p>\n","protected":false},"author":662,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1497,8],"tags":[],"class_list":["post-235546","post","type-post","status-publish","format-standard","hentry","category-energy","category-space"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/235546","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\/662"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=235546"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/235546\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=235546"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=235546"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=235546"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}