Upper Limit on Gravitational Wave Backgrounds at 0.2 Hz with Torsion-bar Antenna

Koji Ishidoshiro, Masaki Ando, Akiteru Takamori +7

We present the first upper limit on gravitational wave (GW) backgrounds at an unexplored frequency of 0.2 Hz using a torsion-bar antenna (TOBA). A TOBA was proposed to search for l…