2003/07/31 by Ryuichi Takahashi, Takashi Nakamura · 3 citations
Engineering · Physics and Astronomy · #Geophysics and Sensor Technology #Pulsars and Gravitational Waves Research #Relativity and Gravitational Theory #astro-ph #gr-qc
paper · pdf · doi:10.1086/379112
published as Astrophys.J.596:L231-L234,2003 · 6 pages, 3 figures. Revised version accepted for publication in ApJL
arxiv created 2003/08/19 · openalex publication_date 2003/10/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/31
It may be possible to construct a laser interferometer gravitational wave antenna in space with h rms ~ 10 -23 at f ~ 0.1 Hz in ~2020. This decihertz antenna may be called the Decihertz Interferometer Gravitational Wave Observatory and Big Bang Observer (DECIGO/BBO). The analysis of 1-10 yr of observational data of the coalescing binary neutron stars or black holes at the distance of ~300 Mpc will give us the spatial position within approximately an arcminute and the time of the coalescence within ~0.1 s beforehand. With the knowledge of the accurate position and the time of the final merging event, the follow-up simultaneous observation using high-frequency ( f ~ 100 Hz) gravitational wave antennae as well as electromagnetic wave antennae from the radio frequency to the ultra-high-energy gamma ray will reveal the physics in the enigmatic event of the coalescence and the formation of the black hole.