Connecting Astrophysics and Fundamental Physics

连接天体物理学和基础物理学

• 批准号: RGPIN-2017-03756
• 负责人: Heyl, Jeremy
• 金额: $ 3.35万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=633169
• 关键词: Connecting; Astrophysics; Fundamental; Physics

The astrophysics of stars and compact objects (neutron stars, white dwarfs and black holes) constrain fundamental physics in crucial and unique ways. Furthermore, over the past several years astronomers and physicists have opened two new windows onto the Universe: gravitational radiation and neutrinos. In the near future astronomers will be able to probe the Universe with x-ray polarimetry. I propose several lines of research that exploit these unique and timely opportunities. In particular I propose a series of studies to probe the properties of weakly interacting particles in stars in globular clusters: both theoretical and observational investigations. Second I propose to develop techniques to constrain the neutron star equation of state using a combination of x-ray polarimetry, timing and spectroscopy including the effects of QED birefringence that produces unique signatures on the polarization of x-ray radiation from neutron stars. The third direction is gravitational. In particular I will explore how electromagnetic observations can best probe the properties of accreting black holes.

恒星和致密天体（中子星、白矮星和黑洞）的天体物理学以关键而独特的方式约束着基础物理学。此外，在过去的几年里，天文学家和物理学家为宇宙打开了两扇新的窗口：引力辐射和中微子。在不久的将来，天文学家将能够用x射线偏振法探测宇宙。我提出了几条研究路线，利用这些独特而及时的机会。我特别提出了一系列研究，以探索球状星团中恒星中弱相互作用粒子的特性：理论和观测研究。其次，我建议开发一种技术来约束中子星状态方程，使用x射线偏振法，定时和光谱学的组合，包括QED双折射的影响，它在中子星x射线辐射的偏振上产生独特的特征。第三个方向是引力。特别是，我将探讨电磁观测如何能最好地探测吸积黑洞的性质。