{"id":6991,"date":"2025-06-09T12:47:34","date_gmt":"2025-06-09T10:47:34","guid":{"rendered":"https:\/\/brera.inaf.it\/?post_type=tesi&#038;p=6991"},"modified":"2025-06-09T12:49:18","modified_gmt":"2025-06-09T10:49:18","slug":"ulx-ultraluminous-x-ray-sources-master-merate-lc-ultraluminous-x-ray-sources-in-crowded-fields-c-salvaggio","status":"publish","type":"tesi","link":"https:\/\/brera.inaf.it\/en\/tesi\/ulx-ultraluminous-x-ray-sources-master-merate-lc-ultraluminous-x-ray-sources-in-crowded-fields-c-salvaggio\/","title":{"rendered":"\u00a0ULX \u2013 Ultraluminous X-ray sources \u2013 Master \u2013 MERATE (LC) \u2013 Ultraluminous X-ray sources in crowded fields \u2013 C. Salvaggio."},"content":{"rendered":"\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"3000\" height=\"1089\" src=\"https:\/\/brera.inaf.it\/wp-content\/uploads\/2025\/06\/per_sito.jpeg\" alt=\"Image credit: NASA\/JPL-Caltech\" class=\"wp-image-6993\"\/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<h5 class=\"wp-block-heading\"><span style=\"color: #cf2e2e;\" class=\"stk-highlight\">ULX \u2013 Ultraluminous X-ray sources<\/span><\/h5>\n\n\n\n<h5 class=\"wp-block-heading\">Master<\/h5>\n\n\n\n<h5 class=\"wp-block-heading\">Site: Merate (LC)<\/h5>\n\n\n\n<h5 class=\"wp-block-heading\">Duration<\/h5>\n\n\n\n<p>1 year<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">Tutor<\/h5>\n\n\n\n<p>Chiara Salvaggio<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">Contact<\/h5>\n\n\n\n<p>chiara.salvaggio AT inaf.it<br><\/p>\n\n\n\n<h5 class=\"wp-block-heading\">Description<\/h5>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<p><strong>Introduction<\/strong> &#8211; Ultraluminous X-ray sources (ULXs) are X-ray binaries particularly luminous in the X-ray band, accreting above their Eddington limit. They are usually observed in nearby galaxies, distinct from the nuclear region. In most sources the nature of the accretor, a neutron star or a black hole, is unknown.<\/p>\n\n\n\n<p><strong>The thesis<\/strong> &#8211; ULXs catalogs are made using data of X-ray telescopes with different spatial resolution. As a consequence, collections of less luminous objects are sometimes indicated as ULXs. The aim of this thesis is to analyse X-ray data of a sample of galaxies crowded in X-ray sources including a number of ULXs, comparing data taken with different telescopes to distinguish ULXs from collections of non-resolved objects. The resulting population of sources will be studied in detail, both including spectral and temporal analysis. This work will help to identify contaminants in the existent catalogs of ULXs and to better characterize a population of still elusive sources.<\/p>\n\n\n\n<p><em>[Image credit: NASA\/JPL-Caltech]<\/em><\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>ULX \u2013 Ultraluminous X-ray sources Master Site: Merate (LC) Duration 1 year Tutor Chiara Salvaggio Contact chiara.salvaggio AT inaf.it Description Introduction &#8211; Ultraluminous X-ray sources (ULXs) are X-ray binaries particularly luminous in the X-ray band, accreting above their Eddington limit. They are usually observed in nearby galaxies, distinct from the nuclear region. In most sources [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":6993,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"footnotes":""},"categories":[28,26],"tags":[575,576],"class_list":["post-6991","tesi","type-tesi","status-publish","format-standard","has-post-thumbnail","hentry","category-master-thesis","category-thesis","tag-chiara-salvaggio","tag-ulx-2"],"blocksy_meta":[],"featured_image_urls":{"full":["https:\/\/brera.inaf.it\/wp-content\/uploads\/2025\/06\/per_sito.jpeg",3000,1089,false],"thumbnail":["https:\/\/brera.inaf.it\/wp-content\/uploads\/2025\/06\/per_sito.jpeg",150,54,false],"medium":["https:\/\/brera.inaf.it\/wp-content\/uploads\/2025\/06\/per_sito.jpeg",300,109,false],"medium_large":["https:\/\/brera.inaf.it\/wp-content\/uploads\/2025\/06\/per_sito.jpeg",768,279,false],"large":["https:\/\/brera.inaf.it\/wp-content\/uploads\/2025\/06\/per_sito.jpeg",1024,372,false],"1536x1536":["https:\/\/brera.inaf.it\/wp-content\/uploads\/2025\/06\/per_sito.jpeg",1536,558,false],"2048x2048":["https:\/\/brera.inaf.it\/wp-content\/uploads\/2025\/06\/per_sito.jpeg",2048,743,false]},"post_excerpt_stackable":"<p>ULX \u2013 Ultraluminous X-ray sources Master Site: Merate (LC) Duration 1 year Tutor Chiara Salvaggio Contact chiara.salvaggio AT inaf.it Description Introduction &#8211; Ultraluminous X-ray sources (ULXs) are X-ray binaries particularly luminous in the X-ray band, accreting above their Eddington limit. They are usually observed in nearby galaxies, distinct from the nuclear region. In most sources the nature of the accretor, a neutron star or a black hole, is unknown. The thesis &#8211; ULXs catalogs are made using data of X-ray telescopes with different spatial resolution. As a consequence, collections of less luminous objects are sometimes indicated as ULXs. The aim&hellip;<\/p>\n","category_list":"<a href=\"https:\/\/brera.inaf.it\/en\/category\/thesis\/master-thesis\/\" rel=\"category tag\">Master thesis<\/a>, <a href=\"https:\/\/brera.inaf.it\/en\/category\/thesis\/\" rel=\"category tag\">Thesis<\/a>","author_info":{"name":"Maria Rosa Panzera","url":"https:\/\/brera.inaf.it\/en\/author\/maria-rosa-panzera\/"},"comments_num":"0 comments","_links":{"self":[{"href":"https:\/\/brera.inaf.it\/en\/wp-json\/wp\/v2\/tesi\/6991","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/brera.inaf.it\/en\/wp-json\/wp\/v2\/tesi"}],"about":[{"href":"https:\/\/brera.inaf.it\/en\/wp-json\/wp\/v2\/types\/tesi"}],"author":[{"embeddable":true,"href":"https:\/\/brera.inaf.it\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/brera.inaf.it\/en\/wp-json\/wp\/v2\/comments?post=6991"}],"version-history":[{"count":1,"href":"https:\/\/brera.inaf.it\/en\/wp-json\/wp\/v2\/tesi\/6991\/revisions"}],"predecessor-version":[{"id":6996,"href":"https:\/\/brera.inaf.it\/en\/wp-json\/wp\/v2\/tesi\/6991\/revisions\/6996"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/brera.inaf.it\/en\/wp-json\/wp\/v2\/media\/6993"}],"wp:attachment":[{"href":"https:\/\/brera.inaf.it\/en\/wp-json\/wp\/v2\/media?parent=6991"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/brera.inaf.it\/en\/wp-json\/wp\/v2\/categories?post=6991"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/brera.inaf.it\/en\/wp-json\/wp\/v2\/tags?post=6991"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}