{"id":23735,"date":"2024-05-28T03:31:31","date_gmt":"2024-05-27T22:01:31","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=23735"},"modified":"2025-10-08T12:05:35","modified_gmt":"2025-10-08T06:35:35","slug":"astronomical-transients","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/astronomical-transients\/","title":{"rendered":"Astronomical transients"},"content":{"rendered":"<h2>About Astronomical transients:\u00a0<\/h2>\n<ul>\n<li>In astronomy, a \u2018transient\u2019 is any <strong>celestial object<\/strong> whose <strong>brightness changes<\/strong> in short spans of time.<\/li>\n<li>There are many kinds of astronomical transients, all of them united by phenomena that are violent in some measure.<\/li>\n<li>Astronomers study transients to understand where their violence comes from and what that can tell us about non-transient event.<\/li>\n<li><strong>Examples of transients<\/strong>\n<ul>\n<li><strong>Supernovae<\/strong>: When the outer layers of large stars blow up while their cores implode because the stars have run out of elements to fuse. Many a supernova has been known to become so bright that it emits light more intensely than the stars in the rest of its host galaxy combined.<\/li>\n<li><strong>Active Galactic nucleus<\/strong> (AGN): The centres of massive galaxies host supermassive <a href=\"https:\/\/vajiramandravi.com\/upsc-exam\/black-hole\/\" target=\"_blank\">black holes<\/a>. Sometimes, these black holes actively feast on matter in their orbit. Interactions between the black holes and the matter in this process cause the latter to acquire energy and glow with a changing brightness.<\/li>\n<li><strong>Fast Radio Burst (FRB):<\/strong> It was discovered in 2007 and it can emit more than 10-times as much energy as the Sun in a few milliseconds.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h3>Q1: What is a Supernova?<\/h3>\n<p>A supernova is the name given to the cataclysmic explosion of a massive star. They are the largest explosion that takes place in space.<\/p>\n<p><strong>Source: <\/strong><a href=\"https:\/\/www.thehindu.com\/sci-tech\/science\/shrinivas-kulkarni-shaw-prize-astronomical-transients\/article68217965.ece\" target=\"_blank\" rel=\"nofollow noopener\">Astronomical transients: bright in the blink of an eye<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Astronomical transients  are any celestial object whose brightness changes in short spans of time.<\/p>\n","protected":false},"author":5,"featured_media":23736,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-23735","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/23735","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=23735"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/23735\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/23736"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=23735"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=23735"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=23735"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}