WoU-MMA: Enabling Multimessenger Astrophysics with Pulsar Timing Arrays

WoU-MMA：利用脉冲星定时阵列实现多信使天体物理学

• 批准号: 2309246
• 负责人: Sarah Vigeland
• 金额: $ 23.91万
• 依托单位: University of Wisconsin-Milwaukee
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-06-01 至 2026-05-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2309246&HistoricalAwards=false
• 关键词: WoU; MMA; Enabling; Multimessenger; Astrophysics

The gravitational wave (GW) spectrum spans many orders of magnitude in frequency, with sources ranging from stellar-mass compact objects to supermassive binary black holes (SMBBHs) at the centers of distant galaxies. GW astronomy is a key component of one of NSF’s 10 big ideas (“windows on the Universe”), which aims to combine electromagnetic, GW, and neutrino observations to study astrophysical phenomena. Pulsar timing arrays (PTAs) probe the low-frequency portion of the GW spectrum (f ∼ 1 − 100 nHz), which is inaccessible to either ground-based or space-based interferometers. The purpose of this award is to support the development of techniques to detect GWs from individual SMBBHs with PTAs. . This award will also support the development of a planetarium show to share PTA science with the public, and a GW activity for undergraduate students that will act as an introduction to astrophysics research.This award will support the development of robust frequentist detection techniques for individual SMBBHs, which will complement existing Bayesian methods. The group will also investigate ways of optimizing PTAs to detect GWs from individual SMBBHs. These advances will improve the ability to detect GWs from individual SMBBHs with PTAs and enable multi-messenger astrophysics of SMBBHs.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

引力波 (GW) 频谱的频率跨越多个数量级，来源范围从恒星质量致密天体到遥远星系中心的超大质量双黑洞 (SMBBH)，GW 天文学是 NSF 10 个引力波天文学的关键组成部分。大想法（“宇宙之窗”），旨在结合电磁、引力波和中微子观测来研究脉冲星计时阵列。 (PTA) 探测引力波频谱的低频部分 (f ∼ 1 − 100 nHz)，这是地基或空基干涉仪无法访问的。该奖项的目的是支持探测技术的开发。来自拥有 PTA 的各个 SMBBH 的 GW 还将支持开发一个天文馆表演，以与公众分享 PTA 科学，以及一项面向本科生的 GW 活动，作为对 PTA 的介绍。天体物理学研究。该奖项将支持针对单个SMBBH开发强大的频率检测技术，这将补充现有的贝叶斯方法，该小组还将研究优化PTA以检测单个SMBBH中的GW的方法。这些进步将提高检测GW的能力。来自具有 PTA 的各个 SMBBH 并启用 SMBBH 的多信使天体物理学。该奖项反映了 NSF 的法定使命，并通过使用评估被认为值得支持基金会的智力价值和更广泛的影响审查标准。