{"id":11469,"date":"2025-07-05T23:04:46","date_gmt":"2025-07-05T20:04:46","guid":{"rendered":"https:\/\/uni-mag.gr\/?p=11469"},"modified":"2025-07-28T18:53:23","modified_gmt":"2025-07-28T15:53:23","slug":"the-ghost-of-1604","status":"publish","type":"post","link":"https:\/\/www.uni-mag.gr\/en\/the-ghost-of-1604\/","title":{"rendered":"Kepler&#8217;s Supernova Remnant in X-Rays"},"content":{"rendered":"\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h2 class=\"wp-block-heading\">Kepler&#8217;s Supernova Remnant in X-Rays<\/h2>\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p class=\"wp-block-paragraph\"><em><span style=\"color: #6f0000;\"><strong>Aikaterini Niovi Triantafillaki <\/strong><\/span><\/em><\/p>\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2025\/07\/issue-13-snr-photo.jpg\" alt=\"\" class=\"wp-image-11460\" srcset=\"https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2025\/07\/issue-13-snr-photo.jpg 1024w, https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2025\/07\/issue-13-snr-photo-300x300.jpg 300w, https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2025\/07\/issue-13-snr-photo-150x150.jpg 150w, https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2025\/07\/issue-13-snr-photo-768x768.jpg 768w, https:\/\/www.uni-mag.gr\/wp-content\/uploads\/2025\/07\/issue-13-snr-photo-200x200.jpg 200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h3 class=\"wp-block-heading\"><strong>Kepler\u2019s Supernova Remnant: The Most Recent Explosion in Our Galaxy<\/strong><\/h3>\n\n<p class=\"wp-block-paragraph\"><strong>What caused this chaos? <\/strong>Some kind of star exploded, creating the unusually shaped nebula we now know as Kepler\u2019s Supernova Remnant. But what kind of star was it? <\/p>\n\n<p class=\"wp-block-paragraph\">The light from this explosion reached Earth in October 1604, just four centuries ago. The supernova created a new, bright star in the sky of the 17th century, located in the constellation Ophiuchus. The astronomer Johannes Kepler, along with his contemporaries, studied it without the help of a telescope, seeking to explain the celestial phenomenon.  <\/p>\n\n<p class=\"wp-block-paragraph\">Today, equipped with modern knowledge of stellar evolution and the power of space telescopes, astronomers continue to study the expanding debris cloud. Thanks to the Chandra X-ray Observatory, we now have data that reveal elemental abundances typical of a Type Ia supernova. The study indicates that the exploding star was a white dwarf that had accumulated too much mass from a companion red giant, surpassing the Chandrasekhar limit.  <\/p>\n\n<p class=\"wp-block-paragraph\">Located about 13,000 light-years away, it is considered the most recent supernova ever observed in our own Milky Way galaxy.<\/p>\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p class=\"card-text\">In 1604, a new bright star lit up the sky \u2014 the explosion of a white dwarf that stunned Kepler and his peers. Today, we trace its ghostly remnant across the galaxy through X-rays.  [&#8230;]<\/p>\n<p class=\"m-0\"><a class=\"btn btn-outline-secondary btn-read-more\" href=\"https:\/\/www.uni-mag.gr\/en\/the-ghost-of-1604\/\">Read More<\/a><\/p>\n","protected":false},"author":3,"featured_media":11465,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2887,139,393],"tags":[1914,2025,3030,3028,3026,3029,3027,2881,347,350],"class_list":["post-11469","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-issue-13-en","category-issues-en","category-what-is-en","tag-astronomy-en","tag-galaxy-en","tag-milky-way","tag-stellar-evolution","tag-supernova-en-2","tag-type-ia","tag-white-dwarf","tag-x-rays-en-2","tag--en"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Kepler&#039;s Supernova Remnant in X-Rays | UNI-MAG<\/title>\n<meta name=\"description\" content=\"A spectacular stellar explosion was first observed in 1604 by Kepler. 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