{"id":615352,"date":"2024-04-03T10:00:01","date_gmt":"2024-04-03T07:00:01","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/student-cleans-up-archival-data-and-uncovers-two-stellar-cocoons\/"},"modified":"2024-04-03T10:00:01","modified_gmt":"2024-04-03T07:00:01","slug":"student-cleans-up-archival-data-and-uncovers-two-stellar-cocoons","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/student-cleans-up-archival-data-and-uncovers-two-stellar-cocoons\/","title":{"rendered":"#Student cleans up archival data and uncovers two stellar cocoons"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a2ef676533b6\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #dd3333;color:#dd3333\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #dd3333;color:#dd3333\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a2ef676533b6\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/buradabiliyorum.com\/en\/student-cleans-up-archival-data-and-uncovers-two-stellar-cocoons\/#Openly_accessible\" >Openly accessible<\/a><\/li><\/ul><\/nav><\/div>\n<div>\n<div class=\"article-gallery lightGallery\">\n<div data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2024\/student-cleans-up-arch.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2024\/student-cleans-up-arch.jpg\" data-sub-html=\"The NACO archive contains data on 57 young stars. Twenty stars had known dust disks or substructures. Master's student Sam de Regt (Leiden University, the Netherlands) discovered two new images of YLW 16A and Elia 2-21 (bottom left and bottom center), while cleaning up the archive. Credit: ESO\/VLT\/NACO, De Regt et al.\">\n<figure class=\"article-img\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800a\/2024\/student-cleans-up-arch.jpg\" alt=\"Student cleans up archival data and uncovers two stellar cocoons\" title=\"The NACO archive contains data on 57 young stars. Twenty stars had known dust disks or substructures. Master's student Sam de Regt (Leiden University, the Netherlands) discovered two new images of YLW 16A and Elia 2-21 (bottom left and bottom center), while cleaning up the archive. Credit: ESO\/VLT\/NACO, De Regt et al.\" width=\"800\" height=\"530\"\/><figcaption class=\"text-darken text-low-up text-truncate-js text-truncate mt-3\">\n                The NACO archive contains data on 57 young stars. Twenty stars had known dust disks or substructures. Master&#8217;s student Sam de Regt (Leiden University, the Netherlands) discovered two new images of YLW 16A and Elia 2-21 (bottom left and bottom center), while cleaning up the archive. Credit: ESO\/VLT\/NACO, De Regt et al.<br \/>\n            <\/figcaption><\/figure>\n<\/div>\n<\/div>\n<p>While investigating 16 years of images of young stars from a retired astronomical camera, Leiden master&#8217;s student Sam de Regt discovered that two of those stars were still enveloped in birth clouds that had not been seen at this level of detail before. He publishes his <a rel=\"nofollow noopener\" target=\"_blank\" href=\"http:\/\/www.aanda.org\/10.1051\/0004-6361\/202348736\">data-cleaning method and the new images<\/a> of the two stars in the journal <i>Astronomy &amp; Astrophysics<\/i>.<\/p>\n<section class=\"article-banner first-banner ads-336x280\"><!-- \/4988204\/Phys_Story_InText_Box --><br \/>\n      <\/section>\n<p>When Sam de Regt (Leiden University, the Netherlands) attended lectures of Matthew Kenworthy (Leiden University) and Christian Ginski (now University of Galway, Ireland), he thought it would be interesting to research the so-called PDI method for his master&#8217;s thesis. PDI stands for Polarimetric Differential Imaging.<\/p>\n<p>This method allows astronomers to distinguish between the extremely bright, unpolarized light from a star and the faint, polarized light reflected from dust particles located in a disk around the star. In such dust disks, planets can be formed.<\/p>\n<p>Ginski and Kenworthy suggested to De Regt to reanalyze archival images from the NACO instrument. That instrument was located on the Very Large Telescope in Chile from 2003 to 2019 and contains data from 57 young stars.<\/p>\n<p>After cleaning up the images, De Regt saw dust disks around twenty known stars. To his surprise, in addition to those 20, two other stars were found to contain dust structures in these observations: YLW 16A and Elia 2-21. These protostars are located some 360 light years towards the constellation Ophiuchus (known as the serpent-bearer).<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Openly_accessible\"><\/span>Openly accessible<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8220;I find it super cool that we have made two new images of these stellar cocoons,&#8221; says De Regt. &#8220;Furthermore, it is of course great that, thanks to the standard procedure we developed, the data have been reduced and are <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/doi.org\/10.5281\/zenodo.8348804\">openly accessible<\/a> via a Zenodo archive.&#8221;<\/p>\n<p>Thesis supervisor Matthew Kenworthy adds, &#8220;This allows other astronomers to carry out research with this data, breathing new life into it. It&#8217;s a good example of the Open <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/sciencee\/\" data-internallinksmanager029f6b8e52c=\"5\" title=\"Science\" target=\"_blank\" rel=\"noopener\">Science<\/a> principle.&#8221;<\/p>\n<p>&#8220;The fact that Sam managed to achieve this in a few months is fantastic,&#8221; says graduation supervisor Christian Ginski. &#8220;We don&#8217;t often witness such productivity.&#8221;<\/p>\n<p>De Regt is now a Ph.D. student at Leiden University. He studies how the formation of exoplanets leaves imprints in their atmospheres.<\/p>\n<div class=\"article-main__more p-4\">\n                                                                                        <strong>More information:<\/strong><br \/>\n                                                S. de Regt at al, Polarimetric Differential Imaging with VLT\/NACO. A comprehensive PDI pipeline for NACO data (PIPPIN),<i>Astronomy &amp; Astrophysics<\/i> (2024). <a rel=\"nofollow noopener\" target=\"_blank\" href=\"http:\/\/www.aanda.org\/10.1051\/0004-6361\/202348736\">www.aanda.org\/10.1051\/0004-6361\/202348736<\/a><\/p><\/div>\n<div class=\"d-inline-block text-medium mt-4\">\n<p>                                                    Provided by<br \/>\n                                                                                                            Netherlands Research School for Astronomy<br \/>\n                                                                                                                <a rel=\"nofollow noopener\" target=\"_blank\" class=\"icon_open\" href=\"http:\/\/www.nova-astronomy.nl\/\"><br \/>\n                                                            <svg><use href=\"https:\/\/phys.b-cdn.net\/tmpl\/v6\/img\/svg\/sprite.svg#icon_open\" x=\"0\" y=\"0\"\/><\/svg><\/a><\/p><\/div>\n<p>                                        <!-- print only --><\/p>\n<div class=\"d-none d-print-block\">\n<p>                                                <strong>Citation<\/strong>:<br \/>\n                                                Student cleans up archival data and uncovers two stellar cocoons (2024, April 3)<br \/>\n                                                retrieved 3 April 2024<br \/>\n                                                from https:\/\/phys.org\/<a href=\"https:\/\/buradabiliyorum.com\/en\/category\/news\/\" data-internallinksmanager029f6b8e52c=\"2\" title=\"News\" target=\"_blank\" rel=\"noopener\">news<\/a>\/2024-03-student-archival-uncovers-stellar-cocoons.html<\/p>\n<p>                                             This document is subject to copyright. 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Twenty stars had known dust disks or substructures. Master&#8217;s student Sam de Regt (Leiden University, the Netherlands) discovered two new images of YLW 16A and Elia 2-21 (bottom left and bottom center), while cleaning up the archive. Credit: ESO\/VLT\/NACO, De Regt et al. While investigating 16&#8230;<\/p>\n","protected":false},"author":1,"featured_media":615353,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2024\/student-cleans-up-arch.jpg","fifu_image_alt":"","footnotes":""},"categories":[16],"tags":[],"class_list":["post-615352","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sciencee"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/615352","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=615352"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/615352\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media\/615353"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=615352"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=615352"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=615352"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}