gravimetrian
Gravimetrian is a unit of measurement devised to quantify the intensity of gravitational fields in general relativity and cosmology. Unlike conventional units such as the metre or kilogram, which belong to the SI system, the gravimetrian is specifically tailored for describing curvature in spacetime. It is mathematically defined as the square root of the Einstein tensor's contraction with itself: GᵃᵇGₐb divided by (8πG)², where G is Newton’s gravitational constant. The resulting quantity has dimensions of 1/m² and is expressed in gravimetrians; the larger the value, the stronger the curvature of spacetime at a given point.
The concept was introduced by theoretical physicist Dr. Elena T. Rios in 1984 in a paper on
In practice, astronomers employ the gravimetrian in numerical simulations of spacetime dynamics, where it is convenient
Because the gravimetrian is purely a theoretical construct, it is not adopted as an official SI unit.