{"id":275127,"date":"2023-12-26T17:23:34","date_gmt":"2023-12-26T11:53:34","guid":{"rendered":"https:\/\/forumias.com\/blog\/?p=275127"},"modified":"2023-12-26T17:23:34","modified_gmt":"2023-12-26T11:53:34","slug":"milli-second-burst-detected-by-astrosat","status":"publish","type":"post","link":"https:\/\/forumias.com\/blog\/milli-second-burst-detected-by-astrosat\/","title":{"rendered":"Milli second burst detected by Astrosat"},"content":{"rendered":"

Source-<\/strong> This post is based on the article “Milli-second burst detected by AstroSat in new high magnetic field neutron star can help understand such stellar entities<\/strong>” published in “PIB”<\/strong> on 25th December 2023.<\/p>\n

Why in the News?<\/strong><\/h2>\n

Recently a study revealed that AstroSat (India’s first multi-wavelength space observatory) has detected intense sub-second X-ray bursts from a new neutron star ‘SGR J1830-0645’.<\/p>\n

What is ‘SGR J1830-0645’?<\/strong><\/h2>\n

1) SGR J1830-0645 (a magnetar) is a relatively young and solitary neutron star, with an age of approximately 24,000 years.<\/p>\n

2) It was first identified in October 2020 by NASA’s Swift spacecraft<\/p>\n

What are Magnetars?<\/strong><\/h2>\n

1) Magnetars are neutron stars with an ultrahigh magnetic field <\/strong>that are much stronger than the terrestrial magnetic field.<\/p>\n

2) The emission of high-energy electromagnetic radiation in magnetars is powered by the decay of their magnetic fields.<\/p>\n

3) They also exhibit strong temporal variability, featuring slow rotation, rapid spin-down, and bright, short bursts, sometimes extending to months-long outbursts.<\/p>\n

What are the findings of the study?<\/strong><\/h2>\n

1) Researchers from Raman Research Institute (RRI) and the University of Delhi analyzed the timing and spectra of this magnetar using two instruments on AstroSat: the Large Area X-Ray Proportional Counter (LAXPC) and the Soft X-Ray Telescope (SXT).<\/strong><\/p>\n

2) A notable discovery included identifying 67 brief sub-second X-ray bursts, averaging a duration of 33 milliseconds.<\/strong> The most luminous burst among them endured for approximately 90 milliseconds.<\/p>\n

3) It detected bright sub-second X-ray bursts<\/strong> which can help understand the intriguing extreme\u00a0astrophysical conditions of magnetars.<\/p>\n

4) The study concluded that SGR J1830\u20130645 is a unique magnetar that showcased emission line in its spectra<\/strong>. The presence of emission lines and its potential origin — either due to fluorescence of iron, proton cyclotron line feature or an instrumental effect — remains a subject of consideration.<\/p>\n

5) The research team intends to broaden their study to determine the origin of these energetic emissions, discerning whether they have an astrophysical origin or are instrumental in nature.<\/p>\n

What is Astrosat?<\/strong><\/h2>\n

Click here to read<\/a><\/p>\n

UPSC Syllabus- Science & Technology<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Source- This post is based on the article “Milli-second burst detected by AstroSat in new high magnetic field neutron star can help understand such stellar entities” published in “PIB” on 25th December 2023. Why in the News? Recently a study revealed that AstroSat (India’s first multi-wavelength space observatory) has detected intense sub-second X-ray bursts from… Continue reading Milli second burst detected by Astrosat<\/span><\/a><\/p>\n","protected":false},"author":10367,"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],"tags":[11872,3590],"class_list":["post-275127","post","type-post","status-publish","format-standard","hentry","category-daily-factly-articles","category-science-and-technology-daily-factly-articles","tag-9pm-daily-factly","tag-pib","entry"],"jetpack_featured_media_url":"","views":{"total":47,"cached_at":"","cached_date":1703661458},"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/275127","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\/10367"}],"replies":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/comments?post=275127"}],"version-history":[{"count":0,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/275127\/revisions"}],"wp:attachment":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/media?parent=275127"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/categories?post=275127"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/tags?post=275127"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}