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WoU-MMA: Correlating the Gravitational-Wave and Electromagnetic Sky Maps

WoU-MMA：关联引力波和电磁天空图

基本信息

批准号：
2011675
负责人：
Claudia Scarlata
金额：
$ 18万
依托单位：
University of Minnesota-Twin Cities
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2020
资助国家：
美国
起止时间：
2020-09-01 至 2024-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2011675&HistoricalAwards=false
关键词：
WoU MMA Correlating Gravitational Wave

项目摘要

The recent detections of gravitational waves (GWs) from the mergers of binary black hole (BBH) and binary neutron star (BNS) systems have initiated the fields of GW and multi-messenger astrophysics. These discoveries have triggered a broad range of studies including novel tests of General Relativity, constraints on the neutron star equation of state, a new measurement of the Hubble constant H0, and others. Advanced GW detectors are expected to further improve their sensitivities, and to conduct extended observing runs in the next 2-4 years. One of the primary targets of these upcoming runs is the detection of the BBH and BNS gravitational-wave background (SGWB) due to the superposition of all compact binaries in the universe. This project will transform the study of the SGWB by developing new interpretation techniques to combine the GW and electromagnetic (EM) signals and apply them to existing and upcoming data. The project will conduct numerous outreach activities through the Science Museum of Minnesota and will promote involvement of women in astrophysics by connecting with appropriate groups and organizations at the University of Minnesota (UMN).The main objectives of the project are as follows: 1) Develop techniques for correlating the SGWB directional composition with electromagnetic (EM) tracers of matter structure such as the cosmic microwave background (CMB), the cosmic infrared background (CIB), and galaxy count surveys. 2) Apply the above techniques to the existing and upcoming GW data from aLIGO and aVirgo in correlation with the CMB/CIB data from Planck, and galaxy survey data from SDSS and (upcoming) Euclid. 3) Contribute to the development of the emerging field of multi-messenger astrophysics by establishing new connections between the GW community and the traditional astrophysics community. SGWB-EM correlations will illuminate the origin and the evolution of the compact binaries, potentially resolving the primordial (dark matter) black hole population. They also have the potential to identify and characterize the early universe sources of the SGWB, uncovering the first moments of the universe and probing the physics of very high energies.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.

最近对双黑洞（BBH）和双中子星（BNS）系统合并产生的引力波（GW）的探测开启了引力波和多信使天体物理学领域。这些发现引发了广泛的研究，包括广义相对论的新颖测试、中子星状态方程的约束、哈勃常数 H0 的新测量等等。先进的引力波探测器预计将进一步提高其灵敏度，并在未来2-4年内进行扩展观测运行。这些即将运行的主要目标之一是探测由于宇宙中所有致密双星的叠加而产生的 BBH 和 BNS 引力波背景 (SGWB)。该项目将通过开发新的解释技术来结合 GW 和电磁 (EM) 信号并将其应用于现有和即将推出的数据，从而改变 SGWB 的研究。该项目将通过明尼苏达科学博物馆开展大量外展活动，并将通过与明尼苏达大学 (UMN) 的适当团体和组织联系，促进女性参与天体物理学。该项目的主要目标如下： 1) 开发将 SGWB 定向成分与物质结构电磁 (EM) 示踪剂（例如宇宙微波背景 (CMB)、宇宙红外背景（CIB）和星系计数调查。 2) 将上述技术应用于来自 aLIGO 和 aVirgo 的现有和即将推出的 GW 数据，与来自普朗克的 CMB/CIB 数据以及来自 SDSS 和（即将推出的）Euclid 的星系调查数据相关。 3）通过在GW社区和传统天体物理学界之间建立新的联系，为多信使天体物理学新兴领域的发展做出贡献。 SGWB-EM 相关性将阐明致密双星的起源和演化，有可能解决原始（暗物质）黑洞种群问题。他们还有潜力识别和表征 SGWB 的早期宇宙源，揭示宇宙的最初时刻并探索极高能量的物理。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。