Gravitational Waves from Compact Objects

来自致密物体的引力波

• 批准号: 1912625
• 负责人: Benjamin Owen
• 金额: $ 30万
• 依托单位: Texas Tech University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-08-01 至 2023-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1912625&HistoricalAwards=false
• 关键词: Gravitational; Waves; Compact; Objects

This award supports research in relativity and relativistic astrophysics and it addresses the priority areas of NSF's "Windows on the Universe" Big Idea. LIGO (the Laser Interferometer Gravitational-wave Observatory) has made history by detecting several binary black hole mergers and a binary neutron star merger. The latter was especially exciting because it was also detected by optical and other electromagnetic telescopes and because it provided new insights into the behavior of matter at its greatest extremes since the Big Bang. Detection of continuous gravitational waves from a single neutron star, a faint signal lasting many years, could tell us even more about such matter - how solid it is, how well it conducts heat and electricity, maybe even the existence of exotic states predicted by particle physics. This award supports searches of Advanced LIGO data for continuous gravitational waves from the youngest neutron stars in our galaxy, using existing telescope observations to point toward likely targets. It also supports the training of graduate and undergraduate students who will constitute the next generation of scientists.Specific science goals are (1) directed searches for young non-pulsing neutron stars such as Cas A, (2) narrow band searches for r-mode oscillations in pulsars such as the Crab, and (3) theoretical guidance and interpretation of searches for continuous gravitational waves, particularly from neutron-star r-modes. Searches will be performed with the Texas Tech group's longstanding code pipeline based on matched filtering, which will be upgraded as the award progresses.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.

该奖项支持相对论和相对论天体物理学的研究，并介绍了NSF“宇宙上的Windows”的优先领域。 LIGO（激光干涉仪重力波观测站）通过检测几个二进制黑洞合并和二元中子星合并而创造了历史。 后者尤其令人兴奋，因为它也被光学和其他电磁望远镜检测到，并且为自大爆炸以来最大的极端行为提供了新的见解。 从单个中子恒星中检测连续的重力波，一个持续多年的微弱信号可以告诉我们更多有关此类问题的信息 - 它的固体程度，其导致热量和电力的能力，甚至可能是由粒子物理学预测的外来状态。 该奖项支持对我们银河系中最年轻的中子星的连续重力波的高级LIGO数据进行搜索，并使用现有的望远镜观测值指向可能的目标。 It also supports the training of graduate and undergraduate students who will constitute the next generation of scientists.Specific science goals are (1) directed searches for young non-pulsing neutron stars such as Cas A, (2) narrow band searches for r-mode oscillations in pulsars such as the Crab, and (3) theoretical guidance and interpretation of searches for continuous gravitational waves, particularly from neutron-star r-modes. 将根据匹配的过滤与得克萨斯州理工学院的长期代码管道进行搜索，随着奖项的进行，该奖项将升级。该奖项反映了NSF的法定任务，并认为值得通过基金会的智力优点和更广泛影响的评估标准来评估值得支持。

项目成果

Constraints on r-modes and Mountains on Millisecond Neutron Stars in Binary Systems

• DOI: 10.3847/2041-8213/ac62d7
• 发表时间: 2022-03
• 期刊: The Astrophysical Journal Letters
• 作者: P. Covas;M. Papa;R. Prix;B. Owen

Directed searches for continuous gravitational waves from twelve supernova remnants in data from Advanced LIGO’s second observing run

• DOI: 10.1103/physrevd.101.083023
• 发表时间: 2020-02
• 期刊: Physical Review D
• 影响因子: 5
• 作者: L. Lindblom;B. Owen

First searches for gravitational waves from r -modes of the Crab pulsar

• DOI: 10.1103/physrevd.104.122008
• 发表时间: 2021-01
• 期刊: Physical Review D
• 影响因子: 5
• 作者: B. Rajbhandari;B. Owen;S. Caride;R. Inta

First Constraining Upper Limits on Gravitational-wave Emission from NS 1987A in SNR 1987A

• DOI: 10.3847/2041-8213/ac84dc
• 发表时间: 2022-06
• 期刊: The Astrophysical Journal Letters
• 作者: B. Owen;L. Lindblom;Luciano Soares Pinheiro