引力波探测 冯畅 物理学院天文系 changfeng@ustc.edu.cn 2023年06月16日
引力波探测 冯畅 物理学院天文系 changfeng@ustc.edu.cn 2023年06月16日
The gravitational wave spectrum with sources and detectors Neutron stars/ stellar-mass black Gamma-ray holes inspiralling bursts into supermassive black holes Core-collapse Inflation and supernovae other processes in the early White- Universe Spinning dwarf neutron stars Inflation and binaries other processes Coalescing binaries of stellar/ in the early Coalescing supermassive intermediate mass black Universe black-hole binaries holes neutron stars AVW Frequency 10-16H2 109-10-6Hz I0-5-101Hz I10-1H2 1-0Hh Wavelength 102 km 1014-10lkm 100-10km 105-105km 105-10k Detection CMB Polarization Pulsar timing LISA BBO/DECIGO LIGO/Virgo/LCGT/ET 10° Earth's Normal Modes.. Initial LIGO-Virgo H1-H2 104 Indirect Limits 106 aLIGO O1 Design 108 10 imit LISA 10 12 BBH BNS CMB 10 Slow-Roll Inflation 10~16l 1020 10~18 1015 10~12 109 106 103 100 103 10 109 Frequency(Hz 2
2 The gravitational wave spectrum with sources and detectors
The Nobel Prize in Physics 1993 "for the discovery of a new type of pulsar,a discovery that has opened up new possibilities for the study of gravitation" Indirect evidence for gravitational waves -5 -10 -15 Cravitatlonal Wave -20 -15 The Hulse-Taylor pulsar(known as PSR -30 B1913+16,PSRJ1915+1606 or PSR1913+16) -35 is a binary star system composed of a neutron -40 b star and a pulsar which orbit around their 1975198019851990199520002005 common center of mass.It is the first binary Year pulsar ever discovered. 3
3 The Hulse–Taylor pulsar (known as PSR B1913+16, PSR J1915+1606 or PSR 1913+16) is a binary star system composed of a neutron star and a pulsar which orbit around their common center of mass. It is the first binary pulsar ever discovered. The Nobel Prize in Physics 1993 "for the discovery of a new type of pulsar, a discovery that has opened up new possibilities for the study of gravitation" Indirect evidence for gravitational waves
The Laser Interferometer Gravitational-Wave Observatory (LIGO) LIGO Hanford Observatory LIGO-Hanford and LIGO- 0 Livingston are ground-based LIGO Livingston Michelson interferometers with Observatory arms spanning 4 km LIGO Hanford Observatory 4km 4
4 LIGO Hanford Observatory The Laser Interferometer Gravitational-Wave Observatory (LIGO) 4km LIGO-Hanford and LIGOLivingston are ground-based Michelson interferometers with arms spanning 4 km
Ground-based gravitational wave detection The first direct observation of gravitational waves was made on 14 September 2015 and was announced by the LIGO and Virgo collaborations on 11 February 2016 4wW入h/wrw wLwwwwwhwny 86420 2017 Nobel Prize in Physics 5
5 Ground-based gravitational wave detection The first direct observation of gravitational waves was made on 14 September 2015 and was announced by the LIGO and Virgo collaborations on 11 February 2016