2021/04/28(Wed) 15:00 -16:00 五樓第一會議室 5F, 1st Meeting Room
Title
Gravitational Wave Glitches in Chaotic Extreme-Mass-Ratio Inspirals
Speaker
陳哲佑博士 (中央研究院物理研究所) Dr. Che-Yu Chen (Institute of Physics, Academia Sinica)Abstract
The Kerr geometry admits the Carter symmetry, which ensures that the geodesic equations are integrable. It is shown that gravitational waveforms associated with extreme-mass-ratio inspirals involving a nonintegrable compact object display "glitch" phenomena, where the frequencies of gravitational waves increase abruptly, when the orbit crosses certain spacetime regions known as Birkhoff islands. The presence or absence of these features in data from upcoming space-borne detectors will therefore allow not only for tests of general relativity but also of fundamental spacetime symmetries.
Language
演講語言 (Language): in English