Search for Continuous Gravitational Waves from Isolated and Binary Neutron Stars

寻找来自孤立中子星和双中子星的连续引力波

• 批准号: 1205173
• 负责人: J. Keith Riles
• 金额: $ 98万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-07-01 至 2016-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1205173&HistoricalAwards=false
• 关键词: Search; Continuous; Gravitational; Waves; Isolated

This research project will focus on a number of areas related to the Laser Interferometer Gravitational-Wave Observatory (LIGO) Experiment: 1) co-leading the ongoing collaboration search for continuous gravitational waves; 2) developing new algorithms for detecting quasi-periodic sources from both isolated and binary neutron stars and 3) detector characterization of Advanced LIGO interferometers focused on spectral line identification and mitigation. The work to be carried out thus includes both searching in existing LIGO data for evidence of rapidly spinning, non-axisymmetric neutron stars in our galactic neighborhood and preparations for searches in the far more sensitive data expected from Advanced LIGO.Discovery of gravitational waves from astrophysical objects will mark a major milestone in science, simultaneously confirming one of the fundamental predictions of gravitational physics, while opening up an entirely new field of astronomy. The detection of such waves from rotating neutron stars would be especially interesting because many such sources are expected to continue emitting for long durations, allowing follow-up investigation of increasing precision, and because it is believed that these waves will provide insight into the poorly known structure of these exotic stars. The research to be carried out, on both the instrumental and analytical sides, will provide training to undergraduate and graduate students in state-of-the-art science at the frontier of knowledge.

该研究项目将重点关注与激光干涉仪引力波天文台（LIGO）实验相关的多个领域：1）共同领导正在进行的连续引力波合作搜索； 2) 开发新算法，用于检测孤立中子星和双中子星的准周期源；3) 先进 LIGO 干涉仪的探测器表征，重点关注谱线识别和缓解。因此，要开展的工作包括在现有 LIGO 数据中搜索我们银河系附近存在快速旋转、非轴对称中子星的证据，并为搜索高级 LIGO 所期望的更为敏感的数据做准备。天体物理物体引力波的发现将标志着科学上的一个重要里程碑，同时证实了引力物理学的基本预测之一，同时开辟了一个全新的领域。 天文学领域。探测来自旋转中子星的此类波将特别有趣，因为许多此类源预计将持续长时间发射，从而允许后续研究提高精度，并且因为人们相信这些波将提供对这些奇异恒星鲜为人知的结构的洞察。即将在仪器和分析方面进行的研究将为本科生和研究生提供知识前沿最先进科学的培训。