RUI: Investigating Phases of Cosmic Matter with Neutron Star Seismology

RUI：用中子星地震学研究宇宙物质的相

• 批准号: 2310003
• 负责人: Prashanth Jaikumar
• 金额: $ 24万
• 依托单位: California State University-Long Beach Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-07-15 至 2026-06-30
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2310003&HistoricalAwards=false
• 关键词: RUI; Investigating; Phases; Cosmic; Matter

Studying the properties of neutron stars helps us to better understand microscopic nuclear forces that govern the structure of sub-atomic matter. Neutron stars can also contain new forms of matter, such as dark matter, which is thought to make up about 27% of the matter in the Universe, and matter that displays unique collective behavior like superfluidity. This project will help in the discovery of such new states of matter, whose distinct features can be revealed by close examination of multi-messenger astronomical signals from neutron stars. Specifically, the PI will use mathematical and computational methods to quantify how neutron star composition affects observables such as gravitational waves. In addition to discovering new states of matter and energy, which is one of the biggest unanswered questions in Science, the PI will mentor several graduate students from diverse backgrounds and conduct synergistic outreach activities in local high schools to promote STEM learning from an early age.Just as helioseismology has proven to be a powerful tool to constrain theoretical models of the Sun and uncover beyond standard model physics, the growing field of neutron star seismology can reveal novel forms of strongly or weakly interacting matter and their behavior under extreme conditions. The PI and his students will quantify the spectrum of certain non-radial modes of neutron stars, called g-modes, that are particularly sensitive to temperature and composition, with the aim of establishing the link between manifest dense strongly interacting matter and its signature in gravitational waves resulting from neutron star mergers or core-collapse supernovae. In addition, the PI and his students will study the impact on neutron star oscillations of Bose condensates and dark matter admixtures, with the aim of constraining the condensate fraction, dark matter particle mass and its interactions with the strong force sector.This project advances the objectives of "Windows on the Universe: the Era of Multi-Messenger Astrophysics", one of the 10 Big Ideas for Future NSF Investments.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.

研究中子星的性质有助于我们更好地理解控制亚原子物质结构的微观核力量。中子恒星还可以包含新形式的物质，例如暗物质，被认为占宇宙中物质的27％，以及显示出独特的集体行为（如超流体）的物质。该项目将有助于发现这种新的物质状态，通过对中子恒星的多门传播天文信号，可以揭示其独特的特征。具体而言，PI将使用数学和计算方法来量化中子星组成如何影响可观察到的引力波。 In addition to discovering new states of matter and energy, which is one of the biggest unanswered questions in Science, the PI will mentor several graduate students from diverse backgrounds and conduct synergistic outreach activities in local high schools to promote STEM learning from an early age.Just as helioseismology has proven to be a powerful tool to constrain theoretical models of the Sun and uncover beyond standard model physics, the growing field of neutron star seismology can reveal novel forms of strongly or weakly在极端条件下的互动物质及其行为。 PI和他的学生将量化某些对温度和成分特别敏感的中子恒星的某些非radial模式的光谱，目的是建立明显的密集相互作用的物质与其在中性恒星或核心偏离超级中心产生的引力波中的迹象之间的联系。 In addition, the PI and his students will study the impact on neutron star oscillations of Bose condensates and dark matter admixtures, with the aim of constraining the condensate fraction, dark matter particle mass and its interactions with the strong force sector.This project advances the objectives of "Windows on the Universe: the Era of Multi-Messenger Astrophysics", one of the 10 Big Ideas for Future NSF Investments.This award reflects NSF's法定任务，并被认为是值得通过基金会的智力优点和更广泛影响的审查标准来评估的值得支持的。