correlation function

Show Summary Details

Quick Reference

A mathematical function used in the statistical description of galaxy clustering. It measures the excess probability of finding a galaxy at a given distance from a particular galaxy, compared with what one would expect if galaxies were distributed randomly throughout space. A positive value of the function indicates that there are more pairs of galaxies with a given separation than there would be in a random distribution, while a negative value indicates that galaxies tend to avoid each other. Observations show that galaxies are highly clustered on scales up to several tens of millions of light years.

Subjects: Astronomy and Astrophysics — Chemistry.

Reference entries

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content. subscribe or login to access all content.