National Astronomical Observatory of Japan

Scientific Goals and Missions - Gravitational Wave Science Project


The Gravitational Wave Science project contributes in the global observation of gravitational wave through the large-scale cryogenic gravitational wave telescope, KAGRA and the interferometric gravitational wave antenna, TAMA300, aiming to develop the gravitational wave astronomy and facilitate science for broader communities.


The missions of this project are to deliver observing data sets to the scientific community by participating into KAGRA operations under the collaboration with relevant institutes and organizations and by managing TAMA300 including the activities for developments of new technology, leading the design of new scientific requirements for the next 5 years in Astronomical observations of the gravitational wave.

Primary Scientific Goals

The primary scientific goals of this project are:

  1. to develop the laser interferometer system, large-aperture and ultra-low-loss mirrors with cryogenic temperature of 20 Kelvin, Low Frequency Vibration Isolation System and Auxiliary Optics System, and to realize more than 25 Mpc sensitivity for the merger of binary neutron stars under the KAGRA collaboration; and
  2. to improve the frequency dependent squeezing technology being developed at TAMA300 to be mature enough for the practical deployment to KAGRA, and to lead the research and development to realize high sensitivity for the next-generation laser interferometric gravitational wave detectors utilizing TAMA300 facilities.

Target Date

End of March 2023