The Bulletin of The Korean Astronomical Society (천문학회보)

The Korean Astronomical Society (한국천문학회)
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Gravitational Wave Astrophysics with the Superconducting Low-frequency Gravitational-wave Telescope

  • Ahn, Sang-Hyeon (Korea Astronomy & Space Science Institute, Center for Theoretical Astronomy) ;
  • Bae, Yeong-Bok (Korea Astronomy & Space Science Institute, Center for Theoretical Astronomy) ;
  • Kang, Gungwon (Korea Institute of Science and Technology Information, Division of Supercomputing) ;
  • Kim, Chunglee (Korea Astronomy & Space Science Institute, Center for Theoretical Astronomy) ;
  • Kim, Whansun (National Institute for Mathematical Sciences, Division of Industrial Mathematics) ;
  • Oh, John J. (National Institute for Mathematical Sciences, Division of Industrial Mathematics) ;
  • Oh, Sang Hoon (National Institute for Mathematical Sciences, Division of Industrial Mathematics) ;
  • Park, Chan (Korea Institute of Science and Technology Information, Division of Supercomputing) ;
  • Son, Edwin J. (National Institute for Mathematical Sciences, Division of Industrial Mathematics) ;
  • Lee, Hyung Mok (Seoul National University, Dept. of Physics and Astronomy) ;
  • Lee, Hyungwon (Inje University, Dept. of Computer Simulation) ;
  • Lee, Hyunkyu (Hanyang University, dept. of Physics) ;
  • Lee, Chang-Hwan (Pusan National University, dept. of Physics) ;
  • Paik, Ho Jung (U. of Maryland, USA, Dept. of Physics)
  • Published : 2017.10.10
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Abstract

Gravitational wave (GW) is a probe to observe compact objects (WD, NS, and BHs) in the Universe. Compact binary coalescences (CBCs) were expected to be primary sources of LIGO, VIRGO, and KAGRA. Indeed GW150914 from BH-BH binary coalescence at 430 Mpc was discovered by LIGO between 25-350 Hz. The total system mass of GW150914 is ${\sim}70M_{\odot}$, and about $3M_{\odot}$ of energy is converted to GWs in 0.2s of the observation duration. In lower frequencies below 10 Hz, in addition to CBCs with $1-100M_{\odot}$, more massive sources of ${\sim}1,000-10,000M_{\odot}$ are observable for seconds up to days in time scale. We introduce GW astrophysics and present highlights of target sources for the proposed super conducting low-frequency gravitational-wave telescope (SLGT).

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