Angular correlation function

The angular correlation function is a function which measures the projected clustering of galaxies, due to discrepancies between their actual and expected distributions.^[1] The function may be computed as follows: ${\displaystyle w(\theta )={\frac {1}{N}}{\frac {dP}{d\Omega }}-1}$, where ${\displaystyle P}$ represents the conditional probability of finding a galaxy, ${\displaystyle \Omega }$ denotes the solid angle, and ${\displaystyle N}$ is the mean number density. In a homogeneous universe, the angular correlation scales with a characteristic depth.^[2]

1. ^ The Galaxy Angular Correlation Functions and Power Spectrum from the Two Micron All Sky Survey
2. ^ "B. The correlation function: galaxies". Retrieved 2021-06-09.

This galaxy-related article is a stub. You can help Wikipedia by expanding it.

• v
• t
• e