{"id":7251,"date":"2025-04-09T09:30:45","date_gmt":"2025-04-09T14:30:45","guid":{"rendered":"https:\/\/uwm.edu\/physics\/?post_type=tribe_events&#038;p=7251"},"modified":"2025-04-09T09:31:16","modified_gmt":"2025-04-09T14:31:16","slug":"physics-colloquium-gabriel-freedman","status":"publish","type":"tribe_events","link":"https:\/\/uwm.edu\/physics\/event\/physics-colloquium-gabriel-freedman\/","title":{"rendered":"Physics Colloquium \u2013 Gabriel Freedman"},"content":{"rendered":"<p><strong>Speaker: Gabriel Freedman, PhD Candidate \u2013 UWM Physics<\/strong><\/p>\n<p>Low-frequency Gravitational Wave Searches and Data Analysis with Hamiltonian Sampling<\/p>\n<p>The pulsar timing array community has found evidence for a correlated stochastic signal following the Hellings-Downs pattern indicative of an isotropic stochastic gravitational-wave background (GWB). The most likely source of such a background is a population of supermassive black hole binaries, and particularly loud individual sources could be detected in future datasets.<\/p>\n<p>We present work done towards performing joint Bayesian searches for both the GWB and single sources utilizing the Hamiltonian Monte Carlo sampling algorithm to efficiently explore these complex parameter spaces. We end by discussing applications of these methods to data analysis for the upcoming Laser Interferometer Space Antenna mission.<\/p>\n<p>Location: Kenwood IRC 2175<\/p>\n<p>Time: 10:00AM \u2013 12:00PM<\/p>\n<p>Date: April 17th, 2025<\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/uwm.edu\/physics\/wp-content\/uploads\/sites\/63\/2025\/04\/Gabe-Freedman-4-17-25-PhD-Colloquium-Flyer.pdf\" width=\"100%\" height=\"800\"><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Speaker: Gabriel Freedman, PhD Candidate \u2013 UWM Physics Low-frequency Gravitational Wave Searches and Data Analysis with Hamiltonian Sampling The pulsar timing array community has found evidence for a correlated stochastic signal following the Hellings-Downs pattern indicative of an isotropic stochastic &hellip;<\/p>\n","protected":false},"author":1272,"featured_media":0,"template":"","meta":{"_acf_changed":false,"_tribe_events_status":"","_tribe_events_status_reason":"","_tribe_events_is_hybrid":"","_tribe_events_is_virtual":"","_tribe_events_virtual_video_source":"","_tribe_events_virtual_embed_video":"","_tribe_events_virtual_linked_button_text":"","_tribe_events_virtual_linked_button":"","_tribe_events_virtual_show_embed_at":"","_tribe_events_virtual_show_embed_to":[],"_tribe_events_virtual_show_on_event":"","_tribe_events_virtual_show_on_views":"","_tribe_events_virtual_url":"","footnotes":"","uwm_wg_additional_authors":[]},"tags":[],"tribe_events_cat":[58],"class_list":["post-7251","tribe_events","type-tribe_events","status-publish","hentry","tribe_events_cat-physics-colloquia","cat_physics-colloquia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Physics &amp; 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