应6163银河net163am刘玉孝教授邀请，马里兰大学6163银河net163amHo Jung Paik教授来我院访问，并做学术报告。欢迎广大师生届时参加！
题目：Superconducting Tensor Detector for Mid-Frequency Gravitational Waves
Detection of gravitational waves (GWs) from binary black holes (BHs) and binary neutron stars by advanced laser interferometers has opened a new window of astronomical observation. Many conceivable sources such as intermediate-mass BH binaries and white dwarf binaries, as well as inspiraling stellar-mass BH binaries, would emit GWs below 10 Hz. It is highly desirable to open a new window in theinfrasound frequency bandbelow 10 Hz. We propose to construct a mid-frequencytensorGW detector by combining six magnetically levitated superconducting test masses. Seismic and Newtonian gravity noise are serious obstacles in constructing terrestrial GW detectors at sub-Hz frequencies. The proposed detector is capable of rejecting the seismic noise to one part in 109by its common-mode rejection characteristic, and can reject the near-field Newtonian gravity noise to a sufficient degree by its full-tensor nature. Such a detector is equally sensitive to GWs coming from anywhere in the sky, and is capable of resolving the source direction and wave polarization. I will present the design concept of a new mid-frequency GW detector, named SOGRO, which could reach a strain sensitivity of 10-19-10-21Hz-1/2at 0.1-10 Hz.
1974?78 Stanford University,Dept. of Physics Research Associate
1978?89 University of Maryland,Dept. of Physics and Astronomy Assistant Professor
1989?2011 University of Maryland,Dept. of Physics Professor
2011-2018 University of Maryland Professor Emeritus and Dept. of Physics Research Professor
2018-20 Korea Astronomy and Space Science Institute Senior Research Leader
