Effect of Earth-Moon's gravity on TianQin's range acceleration noise

Abstract

TianQin is a proposed space gravitational-wave detection mission using circular high Earth orbits. The geocentric concept has raised questions about the disturbing effect of the nearby gravity field of the Earth-Moon system on the highly-sensitive intersatellite ranging measurements. Here we examine the issue through high precision numerical orbit simulation with detailed gravity-field models. By evaluating range accelerations between distant free-falling test masses, the study shows that the majority of the Earth-Moon's gravity disturbances are not in TianQin's detection frequency band above $10^{-4}$ Hz, and hence present no showstoppers to the mission.

7 pages, 4 figures, to match the accepted version by Phys. Rev. D

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• Laser Interferometer Space Antenna
• On orbit performance of the GRACE Follow-On Laser Ranging Interferometer
• Optimizing orbits for TianQin
• The Galactic Gravitational wave foreground
• Impact of orbital orientations and radii on TianQin constellation stability
• gLISA: geosynchronous Laser Interferometer Space Antenna concepts with off-the-shelf satellites
• Effects of the space plasma density oscillation on the inter-spacecraft laser ranging for TianQin gravitational wave observatory

Cited by in corpus (15)

• Concepts and status of Chinese space gravitational wave detection projects
• Constraining the cosmological parameters using gravitational wave observations of massive black hole binaries and statistical redshift information
• Detecting the stochastic gravitational wave background with the TianQin detector
• Orbital effects on time delay interferometry for TianQin
• Evaluating residual acceleration noise for TianQin gravitational waves observatory with an empirical magnetic field model
• Plasma noise in TianQin time delay interferometry
• Effect of Earth-Moon's gravity on TianQin's range acceleration noise. II. Impact of orbit selection
• Doppler effect in TianQin time-delay interferometry
• On point-ahead angle control strategies for TianQin
• Effects of lunisolar perturbations on TianQin constellation: An analytical model
• Effect of solar free oscillations on TianQin's range acceleration noise
• Effect of Earth-Moon's gravity on TianQin's range acceleration noise. III. An analytical model
• Detection of Earth's free oscillations utilizing TianQin
• Modeling coupled constellation dynamics for TianQin under self-gravity
• Detection of the stochastic gravitational wave background with the space-borne gravitational-wave detector network