{"id":7083,"date":"2024-02-20T09:02:16","date_gmt":"2024-02-20T15:02:16","guid":{"rendered":"https:\/\/uwm.edu\/physics\/?post_type=tribe_events&p=7083"},"modified":"2024-02-20T09:02:16","modified_gmt":"2024-02-20T15:02:16","slug":"physics-colloquium-sarah-vigeland","status":"publish","type":"tribe_events","link":"https:\/\/uwm.edu\/physics\/event\/physics-colloquium-sarah-vigeland\/","title":{"rendered":"Physics Colloquium – Sarah Vigeland"},"content":{"rendered":"

Searching for a Gravitational Wave Background with Pulsar Timing Arrays<\/strong><\/p>\n

Sarah Vigeland<\/strong>, Asst. Professor, Dept. of Physics, UW-Milwaukee
\nPulsar timing arrays use observations of millisecond pulsars to detect nanohertz gravitational waves. The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) Collaboration has recently released their 15-year data set containing observations of 68 millisecond pulsars. These data contain evidence for Hellings-Downs correlations, which are characteristic of a gravitational wave background. <\/p>\n

In this talk, I will present these results, and discuss the spectral properties of the signal and implications for the astrophysical source. I will also discuss prospects for detecting other types of gravitational wave sources with pulsar timing arrays, including individual supermassive binary black holes.<\/p>\n

The event flyer is available here<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

Searching for a Gravitational Wave Background with Pulsar Timing Arrays<\/strong><\/p>\n

Sarah Vigeland<\/strong>, Asst. Professor, Dept. of Physics, UW-Milwaukee
\nPulsar timing arrays use observations of millisecond pulsars to detect nanohertz gravitational waves. The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) Collaboration has recently released their 15-year data set containing observations of 68 millisecond pulsars. These data contain evidence for Hellings-Downs correlations, which are characteristic of a gravitational wave background. <\/p>\n","protected":false},"author":9647,"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-7083","tribe_events","type-tribe_events","status-publish","hentry","tribe_events_cat-physics-colloquia","cat_physics-colloquia"],"yoast_head":"\nPhysics & Astronomy<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/uwm.edu\/physics\/event\/physics-colloquium-sarah-vigeland\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Physics Colloquium - Sarah Vigeland\" \/>\n<meta property=\"og:description\" content=\"Searching for a Gravitational Wave Background with Pulsar Timing Arrays Sarah Vigeland, Asst. Professor, Dept. of Physics, UW-Milwaukee Pulsar timing arrays use observations of millisecond pulsars to detect nanohertz gravitational waves. The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) Collaboration has recently released their 15-year data set containing observations of 68 millisecond pulsars. 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