Current status of space gravitational wave antenna DECIGO and B-DECIGO

Understand

Deci-hertz Interferometer Gravitational Wave Observatory (DECIGO) is the future Japanese space mission with a frequency band of 0.1 Hz to 10 Hz.

• DECIGO aims at the detection of primordial gravitational waves, which could be produced during the inflationary period right after the birth of the universe.
• There are many other scientific objectives of DECIGO, including the direct measurement of the acceleration of the expansion of the universe, and reliable and accurate predictions of the timing and locations of neutron star/black hole binary coalescences.
• DECIGO consists of four clusters of observatories placed in the heliocentric orbit.