學術活動
天文
Gravitational waves from rotating neutron stars
浏覽次數:
主講人: David Ian Jones (南安普頓大學)
地點: KIAA-auditorium
時間: 2023年4月20日(星期四)15:30—16:30
主持 聯系人: Garvin YIM/Ke WANG(kwang.astro@pku.edu.cn)
主講人簡介: Prof Ian Jones is an expert on astrophysical sources of gravitational waves. He is a member of the Gravity Group in the department of Mathematical Sciences, University of Southampton. He is also a member of the LIGO Scientific Collaboration, where his main focus is the search for continuous sources of gravitational waves, such as spinning or oscillating neutron stars.

報告摘要Gravitational waves have now been detected from the coalescence of around 100 black hole and neutron star binary systems. In contrast, the search for long-lived “continuous” gravitational wave emission from a single spinning neutron star is ongoing, with a first detection hopefully coming soon. The detection of such signals offers the prospect of probing matter at extremes of density, temperature and magnetic field strength inaccessible to terrestrial experimenters. However, there are large uncertainties in the strength and frequency content of such emission. In this talk I discuss the difficulties in searching for these signals, and describe the most important theoretical issues in modelling them.

主講人簡介Prof Ian Jones is an expert on astrophysical sources of gravitational waves. He is a member of the Gravity Group in the department of Mathematical Sciences, University of Southampton. He is also a member of the LIGO Scientific Collaboration, where his main focus is the search for continuous sources of gravitational waves, such as spinning or oscillating neutron stars.