{"id":167787,"date":"2024-11-04T14:36:42","date_gmt":"2024-11-04T14:36:42","guid":{"rendered":"https:\/\/news.talkwithrattan.com\/index.php\/2024\/11\/04\/a-zombie-stars-spiky-filaments-shed-light-on-a-12th-century-supernova\/"},"modified":"2024-11-04T14:36:42","modified_gmt":"2024-11-04T14:36:42","slug":"a-zombie-stars-spiky-filaments-shed-light-on-a-12th-century-supernova","status":"publish","type":"post","link":"https:\/\/news.talkwithrattan.com\/index.php\/2024\/11\/04\/a-zombie-stars-spiky-filaments-shed-light-on-a-12th-century-supernova\/","title":{"rendered":"A zombie star\u2019s spiky filaments shed light on a 12th century supernova"},"content":{"rendered":"<div style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/i0.wp.com\/www.sciencenews.org\/wp-content\/uploads\/2024\/10\/102824_lg_dandelion_supernova_feat.jpg?fit=800%2C450&amp;ssl=1\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"A zombie star\u2019s spiky filaments shed light on a 12th century supernova\" title=\"A zombie star\u2019s spiky filaments shed light on a 12th century supernova\" \/><\/div> \r\n<br><br><div data-component=\"video-embed\">\n\t\t\t\t\n\n\n\n\n<p>Some 6,500 light-years from Earth lurks a zombie star cloaked in long tendrils of hot sulfur.<\/p>\n\n\n\n<p>Nobody knows how those tendrils formed. But astronomers now know where they\u2019re going. New observations, reported in the Nov. 1 <em>Astrophysical Journal Letters<\/em>, capture the 3-D structure and motion of debris <a href=\"https:\/\/iopscience.iop.org\/article\/10.3847\/2041-8213\/ad713b\" target=\"_blank\" rel=\"noopener\">left in the wake of a supernova<\/a> that was seen to detonate almost 900 years ago.<\/p>\n\n\n\n<p>\u201cIt\u2019s a piece of the puzzle towards understanding this very bizarre [supernova] remnant,\u201d says astronomer Tim Cunningham of the Harvard &amp; Smithsonian Center for Astrophysics in Cambridge, Mass.<\/p>\n\n\n<aside class=\"sn-conversion rich-text rich-text--with-sidebar\">\n<style><![CDATA[\n.email-conversion {\n  border: 1px solid #ffcccb;\n  color: white;\n  margin-top: 50px;\n  background-image: url(\"\/wp-content\/themes\/sciencenews\/client\/src\/images\/cta-module@2x.jpg\");\n  padding: 20px;\n  clear: both;\n}\n\n]]><\/style>\n\n\n\n<div class=\"rich-text embedded-conversion-content is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group__inner-container\">\n<style><![CDATA[\n#dynamic-wrapper {\n  border: 1px solid #ffcccb;\n  background-image: url(\"https:\/\/i0.wp.com\/www.sciencenews.org\/wp-content\/uploads\/2024\/03\/032624_sb_space-sugar_feat.jpg?w&#61;800&amp;ssl&#61;1\");\n  background-size: cover;\n  background-position: center center;\n  padding: 20px;\n  clear: both;\n}\n\n#dynamic-conversion {\n  padding: 20px;\n  background:rgba(0,0,0, 0.5);\n  color: white;\n}\n\n#dynamic-conversion h2 {\n  color: white;\n}\n\np.has-text-align-center a {\n  color: white !important;\n  text-decoration: none;\n  font-weight: bold;\n}\n\n]]><\/style>\n\n\n\n<div id=\"dynamic-wrapper\" class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<div id=\"dynamic-conversion\" class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center\"><strong>Tell us about your Science News experience<\/strong><\/h2>\n\n\n\n\n\n\n\n<p class=\"has-text-align-center\">Help us improve by taking our 15-question reader survey.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n<\/div><\/div>\n\n\n\n\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<\/aside>\n\n\n<p>The supernova was <a href=\"https:\/\/www.sciencenews.org\/article\/strange-stars-odd-features-hint-novel-matter\">first recorded in 1181<\/a> as a \u201cguest star\u201d by astronomers in ancient China and Japan <em>(SN: 4\/17\/02)<\/em>. Astronomers didn\u2019t find the remains of that explosion, now called the Pa 30 nebula, until 2013.<\/p>\n\n\n\n<p>And when they did find the remnant, it looked weird. The supernova appeared to be a kind called type 1a, wherein a white dwarf star <a href=\"https:\/\/www.sciencenews.org\/article\/companion-star-could-have-triggered-supernova\">detonates, destroying itself in the process<\/a> <em>(SN: 3\/23\/16)<\/em>. But in this case, part of the star survived.<\/p>\n\n\n\n<p>Stranger still, the star was surrounded by spiky filaments stretching about three light-years in all directions. \u201cThis is really unique,\u201d Cunningham says. \u201cThere\u2019s no other supernova nebula that shows filaments like this.\u201d<\/p>\n\n\n\n<p>He and colleagues used a telescope at the W.M. Keck Observatory in Hawaii to record how fast the filaments are moving relative to Earth. Then they built a 3-D reconstruction of the filaments and their motions through space.<\/p>\n\n\n\n<p>The team found that the system is structured \u201ckind of like a three-layered onion,\u201d Cunningham says. The inner layer is the star. Then there\u2019s a gap of one or two light-years, which ends in a spherical shell of dust. The final layer is the filaments, which emerge from the dust shell.<\/p>\n\n\n\n<p>Researchers still aren\u2019t sure how the filaments formed, or how they\u2019ve maintained their straight-line shapes for centuries. One possibility is that a shock wave from the explosion ricocheted off the diffuse material between stars and bounced back toward the white dwarf. That wave could have sculpted the material into the spikes astronomers see. Future theoretical studies using the new observations might help solve the puzzle.<\/p>\n\n\n\n<p>The study did show that this remnant is almost definitely from the guest star of 1181. Taking the speeds and positions of the filaments and tracing them backward show they all emanated from the same point around the year 1152, give or take 75 years.<\/p>\n\n\n\n\t\t\t<\/div>\r\n<br>\r\n<br><a href=\"https:\/\/www.sciencenews.org\/article\/zombie-star-supernova-filaments\">Source link <\/a>","protected":false},"excerpt":{"rendered":"<p>Some 6,500 light-years from Earth lurks a zombie star cloaked in long tendrils of hot sulfur. Nobody knows how those tendrils formed. But astronomers now know where they\u2019re going. New observations, reported in the Nov. 1 Astrophysical Journal Letters, capture the 3-D structure and motion of debris left in the wake of a supernova that [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":167788,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"tdm_status":"","tdm_grid_status":"","fifu_image_url":"https:\/\/i0.wp.com\/www.sciencenews.org\/wp-content\/uploads\/2024\/10\/102824_lg_dandelion_supernova_feat.jpg?fit=800%2C450&ssl=1","fifu_image_alt":"","footnotes":""},"categories":[606],"tags":[12975,14828,32847,4095,29988,94643,1365,21283,3320],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/posts\/167787"}],"collection":[{"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/comments?post=167787"}],"version-history":[{"count":1,"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/posts\/167787\/revisions"}],"predecessor-version":[{"id":167789,"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/posts\/167787\/revisions\/167789"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/media\/167788"}],"wp:attachment":[{"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/media?parent=167787"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/categories?post=167787"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/news.talkwithrattan.com\/index.php\/wp-json\/wp\/v2\/tags?post=167787"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}