For earth orbits, the gravitational parameter is μ = 3.986(105) km3/s2 and the circular speed for a standard 300-km altitude space shuttle orbit is 7.726 km/s. I.B.3 The Parabolic Trajectory A parabola is an open curve with an infinite semimajor axis (see Fig. 2); therefore, the ...
When we analyse gravitational-wave data to infer the source properties (location, masses, etc.), wemap out parameter spacewith a set of samples: a list of points in the parameter space, with there being more around more probable locations and fewer in less probable locations. These samples en...
BayesWave (which reconstructs the signal from sine–Gaussian wavelets), and our parameter estimation code LALInference (which uses binary black hole waveforms). The bottom panels show time–frequency plots: each plot has a different scale as the ...
(l-cos α)) 1/2 , where Ms is the mass of the Sun in geometrized units2 (1.477 × 10 5 cm), re is the distance from the Earth to the Sun in cm and y is a parameter whose value is 1 if General Relativity is correct but which takes on different values in other theories of...
Gravitational wave (GW) detection in space probes the GW spectrum that is inaccessible from the Earth. In addition to the LISA project led by the European Space Agency, and the DECIGO detector proposed by the Japan Aerospace Exploration Agency, two Chinese space-based GW observatories—TianQin and...
Agravitational parameterofμ=30.6m3/s2is used. Rather than using this polyhedron gravity field directly in simulation, the resulting potential and acceleration are pre-computed with a grid with spacingΔx=10m. These pre-computed values are then interpolated at simulation time to enable fast online ...
In addition, when taking the fixed value ηv, δSG(z) decreases and dL(SG)GW(z)/dL(SG)EM(z) increases with the increase of α, that is, δSG(z) and dL(SG)GW(z)/dL(SG)EM(z) are obviously affected by the SG model parameter α, which leads to a large deviation of dL(SG)...
the PPN metric solution of the GQFT in the weak field and slow motion limits is derived, and, confronted with today’s Solar system experiments, a most up-to-date constraint on the combined key parameterγW≡γG(αG−αW/2)of the GQFT is obtained. It is found that the new GQFT...
This analysis involved the simultaneous estimation of several parameter sets besides the gravitational potential coefficients and the spherical harmonic coefficients representing the DOT, which were its main products. Beyond degree 70, and up to degree 359, the fully occupied normal matrix associated with...
Our results extend the parameter space of gravity measurements to small, single source masses and low gravitational field strengths. Further improvements to our methodology will enable the isolation of gravity as a coupling force for objects below the Planck mass. This work opens the way to the ...