{"id":3746,"date":"2012-02-20T16:43:34","date_gmt":"2012-02-20T05:43:34","guid":{"rendered":"https:\/\/scienceillustrated.com.au\/blog\/?p=3746"},"modified":"2012-03-21T09:14:24","modified_gmt":"2012-03-20T22:14:24","slug":"bulls-eye-the-oldest-recorded-supernova","status":"publish","type":"post","link":"https:\/\/scienceillustrated.com.au\/blog\/science\/bulls-eye-the-oldest-recorded-supernova\/","title":{"rendered":"Bull&#8217;s-eye: The oldest recorded supernova"},"content":{"rendered":"<div id=\"attachment_3747\" class=\"wp-caption aligncenter\" style=\"width: 605px\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-3747\" title=\"Bullseye-RCW86\" src=\"https:\/\/scienceillustrated.com.au\/blog\/wp-content\/uploads\/2012\/02\/Bullseye-RCW86.gif\" alt=\"\" width=\"605\" height=\"375\" srcset=\"https:\/\/scienceillustrated.com.au\/blog\/wp-content\/uploads\/2012\/02\/Bullseye-RCW86.gif 605w, https:\/\/scienceillustrated.com.au\/blog\/wp-content\/uploads\/2012\/02\/Bullseye-RCW86-300x185.gif 300w\" sizes=\"(max-width: 605px) 100vw, 605px\" \/><\/p>\n<p class=\"wp-caption-text\">Using data from four telescopes, NASA were able to create an image of the remains of RCW86 in October 2011. Image Credit: X-ray: NASA\/CXC\/SAO &amp; ESA; Infared: NASA\/JPL-Caltech\/B. Williams (NCSU)<\/p>\n<\/div>\n<p><strong>All that remains after 1826 years.<!--more--><\/strong><\/p>\n<p><a href=\" http:\/\/www.nasa.gov\/mission_pages\/chandra\/multimedia\/oldest_supernova.html \" target=\"blank\">RCW 86<\/a> is the oldest recorded example of a supernova, located approximately 8,000 light years away in the southern constellation of Circinus. It was described as a &#8220;guest star&#8221; by Chinese astronomers in 185 and remained in the sky for eight months.<\/p>\n<p>Astronomers have determined that the explosion was caused by a Type 1a supernova, where a white dwarf was pushed beyond the brink of stability when a companion star &#8220;dumped&#8221; material onto it. The white dwarf blew away wind prior to exploding, clearing a cavity of very low density around the system.<\/p>\n<p>The explosion was then able to expand much faster than would have been possible otherwise. This is the first time this type of cavity has been seen around a white dwarf before an explosion.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>All that remains after 1826 years.<\/p>\n","protected":false},"author":2,"featured_media":4121,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101,38,8,27],"tags":[],"class_list":["post-3746","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bulls-eye","category-nasa","category-science","category-space"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/scienceillustrated.com.au\/blog\/wp-json\/wp\/v2\/posts\/3746"}],"collection":[{"href":"https:\/\/scienceillustrated.com.au\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/scienceillustrated.com.au\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/scienceillustrated.com.au\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/scienceillustrated.com.au\/blog\/wp-json\/wp\/v2\/comments?post=3746"}],"version-history":[{"count":5,"href":"https:\/\/scienceillustrated.com.au\/blog\/wp-json\/wp\/v2\/posts\/3746\/revisions"}],"predecessor-version":[{"id":3759,"href":"https:\/\/scienceillustrated.com.au\/blog\/wp-json\/wp\/v2\/posts\/3746\/revisions\/3759"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/scienceillustrated.com.au\/blog\/wp-json\/wp\/v2\/media\/4121"}],"wp:attachment":[{"href":"https:\/\/scienceillustrated.com.au\/blog\/wp-json\/wp\/v2\/media?parent=3746"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/scienceillustrated.com.au\/blog\/wp-json\/wp\/v2\/categories?post=3746"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/scienceillustrated.com.au\/blog\/wp-json\/wp\/v2\/tags?post=3746"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}