{"id":55616,"date":"2025-07-18T12:41:13","date_gmt":"2025-07-18T07:11:13","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=55616"},"modified":"2025-07-18T13:07:15","modified_gmt":"2025-07-18T07:37:15","slug":"protostar","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/protostar\/","title":{"rendered":"Protostar"},"content":{"rendered":"<h2><b>Protostar Latest News<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">A team of researchers at the IIST, Thiruvananthapuram, recently discovered radio emission with a special property known as circular polarisation near a massive young protostar that is still forming about 4,500 light-years from Earth.<\/span><\/p>\n<h2><b>About Protostar<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400; text-align: justify;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A protostar is an <\/span><b>early stage in the <\/b><a href=\"https:\/\/vajiramandravi.com\/upsc-exam\/star-formation\/\" target=\"_blank\"><strong>star formation <\/strong><\/a><span style=\"font-weight: 400;\"><strong>process<\/strong>.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400; text-align: justify;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It is a <\/span><b>large mass of gas and dust <\/b><span style=\"font-weight: 400;\">formed as a result of the <\/span><b>contraction of a giant molecular cloud<\/b><span style=\"font-weight: 400;\"> in the interstellar medium.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400; text-align: justify;\" aria-level=\"1\"><b>As the cloud collapses,<\/b> <b>gravitational energy <\/b><span style=\"font-weight: 400;\">is <\/span><b>converted into heat,<\/b><span style=\"font-weight: 400;\"> warming the still-forming protostar.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400; text-align: justify;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It may last from <\/span><b>100,000 to 10 million years<\/b><span style=\"font-weight: 400;\">, depending on the mass of the star.<\/span><\/li>\n<li style=\"font-weight: 400; text-align: justify;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It <\/span><b>begins with an increase in density in the molecular cloud core<\/b><span style=\"font-weight: 400;\"> and <\/span><b>ends with the formation of a pre-main-sequence star<\/b><span style=\"font-weight: 400;\">.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400; text-align: justify;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Pre-main-sequence stars of similar mass to the Sun are known as T-Tauri stars.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400; text-align: justify;\" aria-level=\"1\"><b>Once hydrogen fusion ignites in the core<\/b><span style=\"font-weight: 400;\"> of a star, it<\/span><b> begins producing energy<\/b><span style=\"font-weight: 400;\"> and <\/span><b>becomes a main sequence star.<\/b><\/li>\n<li style=\"font-weight: 400; text-align: justify;\" aria-level=\"1\">Protostars are usually <b style=\"font-size: inherit;\">surrounded by dust,<\/b><span style=\"font-weight: 400;\"> whic<\/span><b style=\"font-size: inherit;\">h blocks the light that they emit<\/b><span style=\"font-weight: 400;\">, so they are<\/span><b style=\"font-size: inherit;\"> difficult to observe<\/b><span style=\"font-weight: 400;\"> in the visible spectrum.<\/span><\/li>\n<\/ul>\n<p><b>Source<\/b><span style=\"font-weight: 400;\">: <\/span><a href=\"https:\/\/www.thehindu.com\/sci-tech\/science\/iist-team-discovers-radio-emission-with-circular-polarisation-near-a-massive-young-protostar\/article69823026.ece\" target=\"_blank\" rel=\"nofollow noopener\"><span style=\"font-weight: 400;\">TH<\/span><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A protostar is an early stage in the star formation process, where gas and dust collapse under gravity, beginning the transformation into a new star. Read more about Protostar, Meaning, Formation, Examples, Stages, Latest News<\/p>\n","protected":false},"author":23,"featured_media":55585,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[21,1639,22,23],"class_list":{"0":"post-55616","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"tag-prelims-pointers","9":"tag-protostar","10":"tag-upsc-current-affairs","11":"tag-upsc-prelims-current-affairs","12":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/55616","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\/23"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=55616"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/55616\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/55585"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=55616"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=55616"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=55616"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}