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Testing gravitational physics with superconducting gravimeters
Sachie Shiomi
Superconducting gravimeters are the most sensitive instruments to measure surface gravity changes at low frequencies. Currently, about twenty five superconducting gravimeters are o…
Geophysical test of the universality of free-fall
Sachie Shiomi
We point out that the universality of free-fall can be tested by observing surface-gravity changes of the Earth. The Earth's inner core is weakly coupled to the rest part of the Ea…
Acceleration disturbances due to local gravity gradients in ASTROD I
Sachie Shiomi
The Astrodynamical Space Test of Relativity using Optical Devices (ASTROD) mission consists of three spacecraft in separate solar orbits and carries out laser interferometric rangi…
Acceleration disturbances and requirements for ASTROD I
Sachie Shiomi, Wei-Tou Ni
ASTRODynamical Space Test of Relativity using Optical Devices I (ASTROD I) mainly aims at testing relativistic gravity and measuring the solar-system parameters with high precision…
ASTROD, ASTROD I and their gravitational-wave sensitivities
Wei-Tou Ni, Sachie Shiomi, An-Chi Liao
ASTROD (Astrodynamical Space Test of Relativity using Optical Devices) is a mission concept with three spacecraft -- one near L1/L2 point, one with an inner solar orbit and one wit…