{"id":14936,"date":"2024-08-08T05:34:12","date_gmt":"2024-08-08T00:04:12","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=14936"},"modified":"2025-10-11T12:18:42","modified_gmt":"2025-10-11T06:48:42","slug":"neutron-stars","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/neutron-stars\/","title":{"rendered":"Neutron stars"},"content":{"rendered":"<h2><strong>About Neutron Stars:<\/strong><\/h2>\n<ul>\n<li>Neutron stars are <strong>extremely dense<\/strong> and <strong>compact celestial objects formed<\/strong> when a <strong>massive star runs out of fuel and collapses<\/strong>.<\/li>\n<li>The very <strong>central region<\/strong> of the star, \u2018the core\u2019, <strong>collapses<\/strong>, <strong>crushing together<\/strong> every <strong>proton and electron into a neutron<\/strong>.<\/li>\n<li><strong>If the core of<\/strong> the collapsing <strong>star is between<\/strong> about <strong>1 and 3 solar masses<\/strong>, these <strong>newly-created neutrons <\/strong>can<strong> stop the collapse<\/strong>, leaving behind a <strong>neutron star.<\/strong> (<strong>Stars with higher masses<\/strong> will <strong>continue to collapse into<\/strong> stellar-mass <strong>black holes<\/strong>).<\/li>\n<li>Since neutron stars began their existence as stars, they are <strong>scattered throughout the galaxy<\/strong> in the same places where we find stars. And like stars, they can be <strong>found by themselves or in binary system<\/strong>s with a companion.<\/li>\n<li>Neutron stars are typically about 20 km (12 miles) in diameter.<\/li>\n<li>Their masses range between 1.18 and 1.97 times that of the Sun, but most are 1.35 times that of the Sun.<\/li>\n<li><strong>Many<\/strong> neutron stars are <strong>likely undetectable<\/strong> because they simply <strong>do not emit enough radiation.<\/strong><\/li>\n<li><strong>Most neutron stars<\/strong> are <strong>observed as pulsars.<\/strong>\n<ul>\n<li><a href=\"https:\/\/vajiramandravi.com\/current-affairs\/pulsars\/\" target=\"_blank\">Pulsars<\/a> are <strong>rotating neutron stars<\/strong> observed to have <strong>pulses of radiation<\/strong> at very <strong>regular intervals<\/strong> that typically range from milliseconds to seconds.<\/li>\n<li>Pulsars have very <strong>strong magnetic fields,<\/strong> which <strong>funnel jets of particles out<\/strong> along the two magnetic poles.\u00a0<\/li>\n<li><strong>These<\/strong> accelerated <strong>particles produce<\/strong> very <strong>powerful beams of light.<\/strong><\/li>\n<\/ul>\n<\/li>\n<li>Neutron stars are <strong>also seen as<\/strong> objects called <strong>rotating radio transients (RRATs)<\/strong> and as <strong>magnetars<\/strong>.\n<ul>\n<li>The <strong>RRATs<\/strong> are <strong>sources that emit single radio bursts<\/strong> but <strong>at irregular intervals<\/strong> ranging from four minutes to three hours. The cause of the RRAT phenomenon is unknown.<\/li>\n<li><strong>Magnetars<\/strong> are <strong>neutron stars having<\/strong> an <strong>ultrahigh magnetic field<\/strong> that is much stronger than the terrestrial magnetic field.\u00a0<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h3><strong>Q1<\/strong>: What is a Black hole?<\/h3>\n<p>A black hole is a region in space where gravity pulls so much that even light can not get out. The gravity is so strong because matter has been squeezed into a tiny space. This can happen when a star is dying. Because no light can get out, it is difficult to detect a black hole. The largest black holes are called &#8220;supermassive.&#8221; These black holes have masses that are more than 1 million suns together. Albert Einstein first predicted the existence of black holes in 1916, with his general theory of relativity.<\/p>\n<p><strong>Source: <\/strong><a href=\"https:\/\/www.space.com\/pulsars-terzan-5-neutron-stars\" target=\"_blank\" rel=\"nofollow noopener\"><strong>10 new dead star &#8216;monsters&#8217; discovered at the heart of the Milky Way<\/strong><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Neutron stars are extremely dense and compact celestial objects formed when a massive star runs out of fuel and collapses. <\/p>\n","protected":false},"author":5,"featured_media":14937,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-14936","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\/14936","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=14936"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/14936\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/14937"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=14936"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=14936"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=14936"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}