{"id":829,"date":"2025-03-26T19:22:00","date_gmt":"2025-03-26T19:22:00","guid":{"rendered":"https:\/\/fof.oac.uncor.edu\/2025\/?post_type=mp-event&#038;p=829"},"modified":"2025-04-10T18:46:36","modified_gmt":"2025-04-10T18:46:36","slug":"luis-a-gutierrez-soto","status":"publish","type":"mp-event","link":"https:\/\/fof.oac.uncor.edu\/2025\/timetable\/event\/luis-a-gutierrez-soto\/","title":{"rendered":"Luis A.  Guti\u00e9rrez Soto"},"content":{"rendered":"<h3><strong>Luis A. Guti\u00e9rrez Soto<\/strong><\/h3>\n<h3><strong>Unveiling the Hidden Population of H-alpha Excess Sources in the Southern Sky: A Synergy of S-PLUS Photometry and Machine Learning<\/strong><\/h3>\n<p>We present a novel method to identify and classify H\u03b1-excess compact sources in the Southern Hemisphere using the 12-band photometry of the S-PLUS survey (7 narrow- and 5 broad-band filters). By employing color-color diagnostics, we isolate approximately 7,000 H\u03b1 candidates, including emission-line stars, young stellar objects, cataclysmic variables (CVs), planetary nebulae, QSOs, and compact galaxies with redshifted emission lines, as well as transients, X-ray binaries, and peculiar objects.<br \/>\nCombining S-PLUS colors with advanced clustering techniques (UMAP+HDBSCAN) and infrared data, we are able to distinguish between distinct classes within our H\u03b1 source list. A Random Forest model, trained on the HDBSCAN results, highlights the key color features that differentiate the various classes of H\u03b1-excess sources, providing a robust framework for future studies, such as follow-up spectroscopy.<\/p>\n<p><a href=\" \" target=\"_blank\" rel=\"noopener\">TALK &#8211; PDF<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Luis A. Guti\u00e9rrez Soto Unveiling the Hidden Population of H-alpha Excess Sources in the Southern Sky: A Synergy of S-PLUS [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"disabled","ast-featured-img":"disabled","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"mp-event_category":[],"mp-event_tag":[],"class_list":["post-829","mp-event","type-mp-event","status-publish","hentry","mp-event-item"],"_links":{"self":[{"href":"https:\/\/fof.oac.uncor.edu\/2025\/wp-json\/wp\/v2\/mp-event\/829","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fof.oac.uncor.edu\/2025\/wp-json\/wp\/v2\/mp-event"}],"about":[{"href":"https:\/\/fof.oac.uncor.edu\/2025\/wp-json\/wp\/v2\/types\/mp-event"}],"author":[{"embeddable":true,"href":"https:\/\/fof.oac.uncor.edu\/2025\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/fof.oac.uncor.edu\/2025\/wp-json\/wp\/v2\/comments?post=829"}],"wp:attachment":[{"href":"https:\/\/fof.oac.uncor.edu\/2025\/wp-json\/wp\/v2\/media?parent=829"}],"wp:term":[{"taxonomy":"mp-event_category","embeddable":true,"href":"https:\/\/fof.oac.uncor.edu\/2025\/wp-json\/wp\/v2\/mp-event_category?post=829"},{"taxonomy":"mp-event_tag","embeddable":true,"href":"https:\/\/fof.oac.uncor.edu\/2025\/wp-json\/wp\/v2\/mp-event_tag?post=829"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}