{"id":14192,"date":"2021-03-03T00:00:00","date_gmt":"2021-03-03T00:00:00","guid":{"rendered":"https:\/\/www.nextias.com\/current_affairs\/uncategorized\/03-03-2021\/aries-devasthal-faint-object-spectrograph-camera-adfosc\/"},"modified":"2021-03-03T00:00:00","modified_gmt":"2021-03-03T00:00:00","slug":"aries-devasthal-faint-object-spectrograph-camera-adfosc","status":"publish","type":"post","link":"https:\/\/www.nextias.com\/ca\/current-affairs\/03-03-2021\/aries-devasthal-faint-object-spectrograph-camera-adfosc","title":{"rendered":"Aries-Devasthal Faint Object Spectrograph &#038; Camera (ADFOSC)"},"content":{"rendered":"<p>\u00a0<\/p>\n<p><strong>In News &#8211;<\/strong>Indian Scientists have <strong>indigenously developed<\/strong> a <strong>low-cost optical spectrograph<\/strong> .<\/p>\n<p><strong>About<\/strong><\/p>\n<ul>\n<li>The <strong>optical spectrograph<\/strong> named as <strong>Aries-Devasthal Faint Object Spectrograph &#038; Camera (ADFOSC), <\/strong>indigenously <strong>designed and developed by Aryabhatta Research Institute of observational sciences (ARIES)<\/strong>, Nainital, an autonomous institute of <strong>Department of Science and Technology (DST).<\/strong><\/li>\n<li>The <strong>spectroscope is\u00a0 the largest of its kind <\/strong>among the <strong>existing astronomical spectrographs<\/strong> in the country, has been successfully commissioned <strong>on the 3.6-m Devasthal Optical Telescope (DOT)<\/strong><\/li>\n<li>It\u00a0 is about <strong>2.5 times less costly<\/strong> compared to the <strong>imported ones and can locate sources of light with a photon-rate<\/strong> as <strong>low as about 1 photon per second<\/strong>.<\/li>\n<li>The total cost of this instrument is nearly Rs.<strong> 4 Crore.<\/strong><\/li>\n<\/ul>\n<p><strong>Features <\/strong>&#8211;<\/p>\n<ul>\n<li>This instrument is a backbone of the <strong>3.6-m DOT<\/strong> for observations of<strong> extremely faint celestial sources, uses a complex arrangement<\/strong> of <strong>several lenses made of special glasses, polished to better smoothness<\/strong> to <strong>produce sharp images of the celestial sky. <\/strong><\/li>\n<li>Photons coming from distant celestial sources, collected by the telescope, are sorted into <strong>different colors by the spectrograph <\/strong>and <strong>are finally converted into electronic recordable signals using an in-house developed Charge-Coupled Device (CCD)<\/strong> camera cooled to a<strong>n extremely low temperature of -1200C. <\/strong><\/li>\n<\/ul>\n<p><strong>Significance &#8211;<\/strong><\/p>\n<ul>\n<li>The indigenous efforts to build complex instruments like ADFOSC in India is an important step to become <strong>\u2018Aatmanirbhar\u2019 in the field of astronomy &#038; astrophysics.<\/strong><\/li>\n<\/ul>\n<p><strong>Present Usage &#8211;<\/strong><\/p>\n<ul>\n<li>The spectrograph is presently being used by <strong>astronomers from India a<\/strong>nd <strong>abroad to study distant quasars and galaxies <\/strong>in a very young <strong>universe, regions around supermassive black-holes <\/strong>,the galaxies, cosmic explosions like supernovae and highly energetic <strong>Gamma-ray bursts, young and massive stars, and faint dwarf galaxies.<\/strong><\/li>\n<\/ul>\n<p>\u00a0<img decoding=\"async\" src=\"https:\/\/cfstatic.nextias.com\/cdn-cgi\/image\/format=auto\/file_library\/mix_content\/761237560694619900_image.png\" style=\"height:224px; margin-left:100px; margin-right:100px; width:350px\" \/><\/p>\n<ul>\n<li>This collage shows pictures of the 3.6-m Devasthal Optical Telescope (DOT), the \u2018Made-in-India\u2019 ARIES-Devasthal Faint Object Spectrograph &#038; Camera (ADFOSC), and an image of celestial source obtained from the telescope.<\/li>\n<\/ul>\n<table border=\"1\" cellspacing=\"0\" style=\"width:735px\">\n<tbody>\n<tr>\n<td style=\"background-color:#fff2cc; width:6.5in\">\n<p><strong>Devasthal Optical Telescope<\/strong><\/p>\n<ul>\n<li>The 3.6m <strong>Devasthal Optical Telescope<\/strong> is a<strong> custom-built instrument of great complexity. <\/strong><\/li>\n<li>The 3.6m DOT f<strong>acility consists of a modern 3.6 meter optical <\/strong>new technology <strong>telescope, a suite of instruments, an Aluminium coating plant<\/strong>, <strong>a control room<\/strong> and<strong> a data center. <\/strong><\/li>\n<li>The <strong>back-end instruments of telescope<\/strong> provide <strong>spectral and imaging capabilities<\/strong> at <strong>visible and near-infrared bands.<\/strong>\n<ul>\n<li>\u00a0This <strong>telescope has the distinction of being largest telescope <\/strong>in <strong>India <\/strong>for study of <strong>celestial objects at optical wavelegths.<\/strong><\/li>\n<li>It is a <strong>national facility installed at Devasthal in the district of Nainital<\/strong>, India.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li>\u00a0It was commissioned in the year 2016 and is being maintained and operated by ARIES.<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><a href=\"https:\/\/pib.gov.in\/PressReleasePage.aspx?PRID=1702133#:~:text=The%20&#039;Made%20in%20India&#039;%20optical,)%2C%20Government%20of%20India%2C%20is\" target=\"_blank\" rel=\"noopener\">Source :PIB<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00a0 In News &#8211;Indian Scientists have indigenously developed a low-cost optical spectrograph . About The optical spectrograph named as Aries-Devasthal Faint Object Spectrograph &#038; Camera (ADFOSC), indigenously designed and developed by Aryabhatta Research Institute of observational sciences (ARIES), Nainital, an autonomous institute of Department of Science and Technology (DST). The spectroscope is\u00a0 the largest of [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":14193,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[21],"tags":[],"class_list":["post-14192","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-current-affairs"],"acf":[],"jetpack_featured_media_url":"https:\/\/wp-images.nextias.com\/cdn-cgi\/image\/format=auto\/ca\/uploads\/2023\/07\/236987current-affairs.jpg","_links":{"self":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts\/14192","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/comments?post=14192"}],"version-history":[{"count":0,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts\/14192\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/media\/14193"}],"wp:attachment":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/media?parent=14192"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/categories?post=14192"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/tags?post=14192"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}