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）频谱跨越了许多数量级的频率，这些频率范围从恒星质量的紧凑物体到遥远星系中心的超质量二进制黑洞（SMBBHS）。 GW天​​文学是NSF的10个大想法之一（“宇宙中的Windows”）之一，该组成部分旨在结合电磁，GW和神经元观察，以研究天体物理现象。脉冲星定时阵列（PTA）探测了GW频谱的低频部分（f〜1-100 nhz），该部分无法访问地面基于地面或空间的干涉仪。该奖项的目的是支持开发具有PTA的单个SMBBH的GWS的技术。 。该奖项还将支持一个天文馆展览的发展，以与公众分享PTA科学，并为本科生进行GW活动，这些活动将作为天体物理学研究的介绍。该奖项将支持针对单个SMBBH的强大频率检测技术的开发，该技术将补充现有的贝叶斯方法。该小组还将研究优化PTA的方法以检测单个SMBBH的GW。这些进步将提高使用PTA的单个SMBBH检测GW的能力，并启用SMBBHS的多通信天体物理学。该奖项反映了NSF的法定任务，并通过使用基金会的智力优点和更广泛的影响标准来评估NSF的法定任务。