Abstract
Abstract Taiji is a Chinese space mission to detect gravitational waves in the frequency band 0.1 mHz to 1.0 Hz, which aims at detecting super (intermediate) mass black hole mergers and extreme (intermediate) mass ratio in-spirals. A brief introduction of its mission overview, scientific objectives, and payload design is presented. A roadmap is also given in which the launching time is set to the 2030s.
Highlights
In 2016, the ground-based detector LIGO announced its first detection of gravitational waves (GWs) [1], the tiny variation of spacetime curvature predicted by Albert Einstein a century ago
After a few years’feasibility study, a preliminary mission proposal [5] based on the Advanced Laser Interferometer Antenna (ALIA) [6] was presented in 2011
With a very stringent noise budget and a half-million-kilometer arm length, it was very sensitive to intermediate mass black hole mergers
Summary
In 2016, the ground-based detector LIGO announced its first detection of gravitational waves (GWs) [1], the tiny variation of spacetime curvature predicted by Albert Einstein a century ago. In 2012, the first mission descoping attempt was reported to prefer a constellation of three satellites separated each by about 3 million kilometers, coordinating both technical and scientific goals, and the proposed three-step road map was first presented in which the launch time for the Chinese space. The Taiji program with its three-step road map has obtained priority support since 2016 for its preexperimental study from the strategic priority research program of the Chinese Academy of Sciences.
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