{"id":61395,"date":"2016-07-19T15:52:00","date_gmt":"2016-07-19T19:52:00","guid":{"rendered":"https:\/\/www.nasa.gov\/?migration=converted-node-386416"},"modified":"2023-07-26T15:12:58","modified_gmt":"2023-07-26T19:12:58","slug":"precision-foreground-removal-in-cosmic-microwave-background-polarization-maps","status":"publish","type":"post","link":"https:\/\/www.nasa.gov\/directorates\/stmd\/space-tech-research-grants\/precision-foreground-removal-in-cosmic-microwave-background-polarization-maps\/","title":{"rendered":"Precision Foreground Removal in Cosmic Microwave Background Polarization Maps"},"content":{"rendered":"\n<p><strong>Taylor Baildon <\/strong><br>\n<em>University of Michigan<\/em><\/p>\n\n\n<div id=\"\" class=\"hds-media hds-module wp-block-image\"><div class=\"margin-left-auto margin-right-auto nasa-block-align-inline\"><div class=\"hds-media-wrapper margin-left-auto margin-right-auto\"><figure class=\"hds-media-inner hds-cover-wrapper hds-media-ratio-none \"><a href=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2016\/06\/baildon_taylor.jpg\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1077\" height=\"1280\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2016\/06\/baildon_taylor.jpg?w=1077\" class=\"attachment-2048x2048 size-2048x2048\" alt=\"Taylor Baildon\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2016\/06\/baildon_taylor.jpg 1077w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2016\/06\/baildon_taylor.jpg?resize=252,300 252w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2016\/06\/baildon_taylor.jpg?resize=768,913 768w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2016\/06\/baildon_taylor.jpg?resize=862,1024 862w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2016\/06\/baildon_taylor.jpg?resize=337,400 337w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2016\/06\/baildon_taylor.jpg?resize=505,600 505w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2016\/06\/baildon_taylor.jpg?resize=757,900 757w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2016\/06\/baildon_taylor.jpg?resize=1010,1200 1010w\" sizes=\"(max-width: 1077px) 100vw, 1077px\" loading=\"eager\" \/><\/a><\/figure><figcaption class=\"hds-caption padding-y-2\"><div class=\"hds-caption-text p-sm margin-0\">Taylor Baildon<\/div><\/figcaption><\/div><\/div><\/div>\n\n\n<p>The most promising method for detecting primordial gravitational waves lies in the B-mode polarization of the cosmic microwave background, or CMB. A measurement of these B-modes would reveal the first evidence for quantum gravity and determine the energy scale of inflation. However, polarized foreground emission from synchrotron radiation and dust in our galaxy\u2019s magnetic field are sources of significant contamination for CMB B-mode polarization maps. I propose to develop high-precision photometric calibration technology in order to make the highest possible quality foreground-cleaned polarization maps of the CMB. I will build and characterize a precision Fourier Transform Spectrometer (FTS) with a novel optical coupling scheme that will enable on-site measurements of Advanced ACTPol\u2019s detectors\u2019 spectral responses. I will develop new anti-reflection coating technology for optical systems to ensure precise calibration. With my calibration in hand, I will then produce foreground-separated polarization maps which will be used to place constraints on inflation, neutrinos and dark energy. The technology I develop will be applicable to all suborbital and space-based CMB, millimeter wave, and submillimeter wave experiments. My work aligns with NASA\u2019s goals outlined in the Science Instruments, Observatories, and Sensor Systems Roadmap (TA08.1.4 and TA08.2.2), Materials, Structures, Mechanical Systems, and Manufacturing Roadmap (TA12.1.4), Physics of the Cosmos Program, and Cosmic Origins Program.<\/p>\n\n\n\n<p><a href=\"\/directorates\/spacetech\/strg\/nstrf-2016\"><strong>Back to NSTRF 2016 Full List<\/strong><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Taylor Baildon University of Michigan The most promising method for detecting primordial gravitational waves lies in the B-mode polarization of the cosmic microwave background, or CMB. A measurement of these B-modes would reveal the first evidence for quantum gravity and determine the energy scale of inflation. However, polarized foreground emission from synchrotron radiation and dust […]<\/p>\n","protected":false},"author":66,"featured_media":63472,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"nasa_hds_core_meta_l10n":"en-US","nasa_hds_core_meta_article_editor":"","nasa_hds_core_meta_article_contacts":[],"nasa_hds_core_meta_article_topic":"","nasa_hds_core_meta_linked_locations":[],"nasa_hds_core_meta_article_related_articles":[],"hds_migrate_meta_pr_release_id":"","hds_migrate_meta_pr_release_type":"","nasa_hds_core_meta_location_x":"","nasa_hds_core_meta_location_y":"","nasa_hds_core_meta_gallery_images":[],"footnotes":""},"categories":[3337],"news-tags":[],"internal-terms":[9529,12750],"coauthors":[],"parsely":{"version":"1.1.0","meta":{"@context":"https:\/\/schema.org","@type":"NewsArticle","headline":"Precision Foreground Removal in Cosmic Microwave Background Polarization Maps","url":"https:\/\/www.nasa.gov\/directorates\/stmd\/space-tech-research-grants\/precision-foreground-removal-in-cosmic-microwave-background-polarization-maps\/","mainEntityOfPage":{"@type":"WebPage","@id":"https:\/\/www.nasa.gov\/directorates\/stmd\/space-tech-research-grants\/precision-foreground-removal-in-cosmic-microwave-background-polarization-maps\/"},"thumbnailUrl":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2016\/06\/baildon_taylor.jpg?w=150&h=150&crop=1","image":{"@type":"ImageObject","url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2016\/06\/baildon_taylor.jpg"},"articleSection":"NASA Directorates","author":[{"@type":"Person","name":"Loura Hall"}],"creator":["Loura Hall"],"publisher":{"@type":"Organization","name":"NASA","logo":"https:\/\/www.nasa.gov\/wp-content\/themes\/nasa\/assets\/images\/nasa-logo.svg"},"keywords":["NASA Directorates","Space Technology Mission Directorate","Space Technology Research Grants"],"dateCreated":"2016-07-19T19:52:00Z","datePublished":"2016-07-19T19:52:00Z","dateModified":"2023-07-26T19:12:58Z"},"rendered":"<meta name=\"parsely-title\" content=\"Precision Foreground Removal in Cosmic Microwave Background Polarization Maps\" \/>\n<meta name=\"parsely-link\" content=\"https:\/\/www.nasa.gov\/directorates\/stmd\/space-tech-research-grants\/precision-foreground-removal-in-cosmic-microwave-background-polarization-maps\/\" \/>\n<meta name=\"parsely-type\" content=\"post\" \/>\n<meta name=\"parsely-image-url\" content=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2016\/06\/baildon_taylor.jpg?w=150&h=150&crop=1\" \/>\n<meta name=\"parsely-pub-date\" content=\"2016-07-19T19:52:00Z\" \/>\n<meta name=\"parsely-section\" content=\"NASA Directorates\" \/>\n<meta name=\"parsely-tags\" content=\"NASA Directorates,Space Technology Mission Directorate,Space Technology Research Grants\" \/>\n<meta name=\"parsely-author\" content=\"Loura Hall\" \/>","tracker_url":"https:\/\/cdn.parsely.com\/keys\/nasa.gov\/p.js"},"read_time":2,"time_ago":"8 years","featured_image":{"id":63472,"file":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2016\/06\/baildon_taylor.jpg","title":"baildon_taylor","alt":"Taylor Baildon","caption":""},"_links":{"self":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/posts\/61395"}],"collection":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/users\/66"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/comments?post=61395"}],"version-history":[{"count":1,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/posts\/61395\/revisions"}],"predecessor-version":[{"id":463541,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/posts\/61395\/revisions\/463541"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/media\/63472"}],"wp:attachment":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/media?parent=61395"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/categories?post=61395"},{"taxonomy":"news-tags","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/news-tags?post=61395"},{"taxonomy":"internal-terms","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/internal-terms?post=61395"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/coauthors?post=61395"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}