{"id":235833,"date":"2023-04-03T19:24:19","date_gmt":"2023-04-03T13:54:19","guid":{"rendered":"https:\/\/blog.forumias.com\/?p=235833"},"modified":"2023-04-03T19:24:19","modified_gmt":"2023-04-03T13:54:19","slug":"a-cosmic-explosion-in-2022-was-the-brightest-ever-and-may-overturn-decades-long-theory-on-gamma-ray-bursts","status":"publish","type":"post","link":"https:\/\/forumias.com\/blog\/a-cosmic-explosion-in-2022-was-the-brightest-ever-and-may-overturn-decades-long-theory-on-gamma-ray-bursts\/","title":{"rendered":"A cosmic explosion in 2022 was the brightest ever \u2014 and may overturn decades-long theory on gamma ray bursts"},"content":{"rendered":"\n

Source: <\/b>The post is based on the article <\/span>\u201cA cosmic explosion in 2022 was the brightest ever \u2014 and may overturn decades-long theory on gamma ray bursts\u201d <\/b>published in<\/span> Down To Earth <\/b>on 3rd April 2023<\/b><\/p>\n

What is the News?<\/b><\/h2>\n

In 2022, A<\/span>stronomers recorded the brightest gamma-ray radiation (named GRB 221009A) of all time, which could overturn a long-standing theory of GRB jets.<\/span><\/p>\n

What are <\/b>Gamma-ray bursts(GRB)?<\/b><\/h2>\n

Gamma-ray bursts are the strongest and brightest explosions in the universe, thought to be generated during the formation of black holes.\u00a0<\/span><\/p>\n

Though they last mere seconds, gamma-ray bursts produce as much energy as the sun will emit during its entire 10-billion-year existence.\u00a0<\/span><\/p>\n

GRBs were first seen in 1967 by the U.S. Air Force satellite called Vela.\u00a0<\/span><\/p>\n

Types of GRBs:\u00a0<\/b><\/p>\n

Long-duration gamma-ray bursts (LGRBs)<\/b>: LGRBs last for more than two seconds and are thought to be caused by the collapse of massive stars, known as supernovae.<\/span><\/p>\n

\u2013 These explosions release a tremendous amount of energy and create a black hole at their center.<\/span><\/p>\n

\u2013 LGRBs are the most common type of GRB and can be observed from distant galaxies.<\/span><\/p>\n

Short-duration gamma-ray bursts (SGRBs): <\/b>SGRBs last for less than two seconds and are thought to be caused by the collision of two compact objects, such as neutron stars or a neutron star and a black hole.<\/span><\/p>\n

\u2013 SGRBs are much rarer than LGRBs, are more difficult to observe and typically located closer to our galaxy.<\/span><\/p>\n

What is <\/b>GRB 221009A?<\/b><\/h2>\n

GRB 221009A was a bright and long-lasting gamma-ray burst (GRB) jointly discovered by the Neil Gehrels Swift Observatory and the Fermi Gamma-ray Space Telescope.<\/span><\/p>\n

GRB 221009A <\/span>is only expected to happen once in many thousands of years. It may even be the brightest gamma-ray burst since human civilization began. Astronomers therefore dubbed it BOAT \u2013 the brightest of all time.<\/span><\/p>\n

The <\/span>burst was so bright it effectively blinded most gamma-ray instruments in space, which means they could not directly record the real intensity of the emission.<\/span><\/p>\n

GRB 221009A is also the only seventh gamma-ray burst to display X-ray rings, and it triples the number previously seen around one.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Source: The post is based on the article \u201cA cosmic explosion in 2022 was the brightest ever \u2014 and may overturn decades-long theory on gamma ray bursts\u201d published in Down To Earth on 3rd April 2023 What is the News? In 2022, Astronomers recorded the brightest gamma-ray radiation (named GRB 221009A) of all time, which… Continue reading A cosmic explosion in 2022 was the brightest ever \u2014 and may overturn decades-long theory on gamma ray bursts<\/span><\/a><\/p>\n","protected":false},"author":10317,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"footnotes":""},"categories":[1566,1738,9],"tags":[10504,10514],"class_list":["post-235833","post","type-post","status-publish","format-standard","hentry","category-daily-factly-articles","category-science-and-technology-daily-factly-articles","category-public","tag-down-to-earth","tag-dte","entry"],"jetpack_featured_media_url":"","views":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/235833","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/users\/10317"}],"replies":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/comments?post=235833"}],"version-history":[{"count":0,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/235833\/revisions"}],"wp:attachment":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/media?parent=235833"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/categories?post=235833"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/tags?post=235833"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}