Radial distance refers to the straight-line distance between a central point and another point in a circular or spherical system. It measures the distance from the center to any desired point, ignoring any curves or paths. Full definition
We find that data compression and noise both increase linearly with radial distance from the center of the field of view, with the data compression proportional to star count as well. (arxiv.org)
Combining this dataset with available infrared surveys and the ALMA data from Project 2.1 we will estimate the disk mass loss as a function of age and radial distance from O stars. (eos-nexus.org)
[32] Lemaitre showed that by taking the masses of the bodies to be small and their radial distance to be large, one could develop a solution for relativistic celestial mechanics. (faith.org.uk)