{"id":122904,"date":"2019-06-14T23:10:17","date_gmt":"2019-06-14T23:10:17","guid":{"rendered":"https:\/\/www.bnreport.com\/massive-superflares-have-been-seen-erupting-from-stars-like-the-sun\/"},"modified":"2019-06-14T23:10:17","modified_gmt":"2019-06-14T23:10:17","slug":"massive-superflares-have-been-seen-erupting-from-stars-like-the-sun","status":"publish","type":"post","link":"https:\/\/www.bnreport.com\/en\/massive-superflares-have-been-seen-erupting-from-stars-like-the-sun\/","title":{"rendered":"Massive superflares have been seen erupting from stars like the sun"},"content":{"rendered":"<p><strong>ST. LOUIS<\/strong> \u2014 It isnt only young stars that spit high-energy superflares. Older stars, such as the sun, can also send out bursts of energy that could be powerful enough to strip away planetary atmospheres in close orbit, researchers report.<\/p>\n<p>Such superflares can be seen from hundreds of light-years away. Astrophysicists had assumed that only young stars had these outbursts. But a team of researchers has documented superflares erupting from middle-aged stars, each with a similar temperature and radius to the sun. These massive flares can be at least 100 to 1,000 times as powerful as the average solar flares that Earth normally experiences.<\/p>\n<p>But flares from these older stars are rare. \u201cWe have found superflares erupting once every 2,000 to 3,000 years in sunlike stars,\u201d says study coauthor Yuta Notsu of the University of Colorado Boulder, who <a href=\"https:\/\/aas.org\/meetings\/aas234\/2nd-media-advisory\" rel=\"noreferrer noopener\" target=\"_blank\">presented the findings<\/a> June 10 at the American Astronomical Society meeting. By contrast, superflares from younger stars erupt much more frequently, about once every few days.<\/p>\n<p>Using data from the Kepler space telescope, Notsus team looked at about 90,000 stars and found 300 that together produced more than 1,000 superflares over 500 days of observation. Adding data from the Gaia space telescope, the team whittled the group down to just 113 stars with a sunlike size and temperature.<\/p>\n<p>With further analysis, the researchers narrowed their field to include only stars with slow rotations, an indication of older age. By comparing superflare frequencies with star age, the scientists predict that the roughly 4.6-billion-year-old sun might experience a superflare 100 times as strong as normal flares in the next 1,000 years. The team also <a href=\"https:\/\/iopscience.iop.org\/article\/10.3847\/1538-4357\/ab14e6\/meta\" rel=\"noreferrer noopener\" target=\"_blank\">reported the findings<\/a> May 3 in the<em> Astrophysical Journal<\/em>.<\/p>\n<p>Such a relatively small superflare would still likely be extremely damaging to society on Earth, knocking out power grids, communication sate<a href=\"https:\/\/www.sciencenews.org\/article\/massive-superflares-have-been-seen-erupting-stars-sun\" rel=\"noreferrer noopener\" target=\"_blank\"><strong>Read More \u2013 Source<\/strong><\/a><br \/>\n[contf]<br \/>\n[contfnew]<br \/>\n        <img decoding=\"async\" src=\"https:\/\/www.sciencenews.org\/profiles\/sn\/themes\/science_news\/logo.png\" \/><\/p>\n<h5><a href=\"https:\/\/app.newswirenow.co.uk\/www.sciencenews.org\" rel=\"noreferrer noopener\" target=\"_blank\">science news<\/a><\/h5>\n<p>[contfnewc]<br \/>\n[contfnewc]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>ST. LOUIS \u2014 It isnt only young stars that spit high-energy superflares. Older stars, such as the sun..<\/p>\n","protected":false},"author":1,"featured_media":122905,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[49],"tags":[],"class_list":["post-122904","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Massive superflares have been seen erupting from stars like the sun - Business News Report<\/title>\n<meta name=\"description\" content=\"ST. LOUIS \u2014 It isnt only young stars that spit high-energy superflares. 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