{"id":14152,"date":"2026-08-31T12:59:14","date_gmt":"2026-08-31T07:29:14","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=14152"},"modified":"2026-08-31T15:23:35","modified_gmt":"2026-08-31T09:53:35","slug":"what-is-magnetar","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/what-is-magnetar\/","title":{"rendered":"Magnetars"},"content":{"rendered":"<h2><b>Magnetar\u00a0 Latest News<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Recently, a magnetar called 1E 1547.0\u22125408 has produced the strongest observational case so far that an intense magnetic field can change how light travels through otherwise empty space.\u00a0<\/span><\/p>\n<h2><b>About Magnetar<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Magnetars are <\/span><b>neutron stars<\/b><span style=\"font-weight: 400;\"> having an <\/span><b>ultrahigh magnetic field<\/b><span style=\"font-weight: 400;\"> that are much stronger than the terrestrial magnetic field.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">They are <\/span><b>formed in the same way as all neutron stars<\/b><span style=\"font-weight: 400;\">, through the core-collapse of a massive star in a supernova explosion.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The idea of a magnetar was first proposed in 1987 and used to successfully explain soft gamma repeaters (SGR) in 1992.\u00a0<\/span><\/li>\n<\/ul>\n<h2><b>Characteristics Magnetar<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">They are characterised by <\/span><b>exceptionally strong magnetic fields,<\/b><span style=\"font-weight: 400;\"> estimated to be a thousand times stronger than typical neutron stars.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The magnetic field of a magnetar is over one quadrillion times stronger than the magnetic field of Earth.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">What powers the <\/span><b>emission of high-energy electromagnetic radiation<\/b><span style=\"font-weight: 400;\"> in them is <\/span><b>the decay of magnetic fields <\/b><span style=\"font-weight: 400;\">in these objects.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Besides, magnetars display <\/span><b>strong temporal variability,<\/b><span style=\"font-weight: 400;\"> typically including a slow rotation, a rapid spin-down, bright but short bursts going on upto months-long outbursts.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Occasionally, they emit intense <\/span><b>bursts of energy in the form of flares.<\/b><\/li>\n<\/ul>\n<p><b>Source: <\/b><strong><a href=\"https:\/\/www.thehindu.com\/sci-tech\/science\/how-a-star-with-an-extreme-magnetic-field-could-prove-space-is-not-empty\/article71407511.ece\" target=\"_blank\" rel=\"nofollow noopener\">TH<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Magnetar are neutron stars having an ultrahigh magnetic field that are much stronger than the terrestrial magnetic field. Read more about Magnetars, Characteristics, Latest News.<\/p>\n","protected":false},"author":5,"featured_media":47597,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[9890,21,22,23],"class_list":["post-14152","post","type-post","status-publish","format-standard","has-post-thumbnail","category-upsc-prelims-current-affairs","tag-magnetar","tag-prelims-pointers","tag-upsc-current-affairs","tag-upsc-prelims-current-affairs","no-featured-image-padding"],"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/14152","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=14152"}],"version-history":[{"count":2,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/14152\/revisions"}],"predecessor-version":[{"id":121900,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/14152\/revisions\/121900"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/47597"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=14152"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=14152"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=14152"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}