Tag: gravitational field

The history of the general theory of relativity tests began with Albert Einstein’s three related assertions in 1915, which involved the precession of Mercury’s perihelion, the deflection of light in gravitational fields, and gravitational redshift. Based on the absolute reference system notion, an analysis of the gravitational field’s influence...

A strong enough gravitational field evens out the surface of the celestial body over a threshold massM c, forming an elliptical shape. Small comets and asteroids can adopt any shape since their gravitational forces are insufficient to smooth out their surfaces. However, large celestial bodies like the Moon, Sun,...

We apply the perturbative technique which was previously developed in cosmology to now describe the gravitational field of a galaxy with arbitrary rotation curve. We use a Schwarzschild background as starting point, however with the correct physical coordinates. In the perturbation theory we find two classes of metric perturbations,...

Selection of the coordinate system is essential for rotation problems. Otherwise, mistakes may occur due to inaccurate measurement of angular speed. Approximate inertial coordinate system selections for rotation problems should be the gravitational field of the celestial body higher than the object being rotated: (1) the Earth fixed Cartesian...

Traditionally, Newton’s laws are directly used to establish the gravitational relationship between two objects with any type of motion. However, the relationship is mathematically a vector (or vectors), and it is difficult to solve, especially when the number of objects is greater than 3, the physical relationship between objects...