# 暗物質暈

## 星系自轉曲線是暗物質暈的證據

${\displaystyle \rho (r)={\frac {constant}{(r/a)(1+r/a)^{2}}}}$

## 註解

1. a The radial velocity dispersion profile of the Galactic halo: Constraining the density profile of the dark halo of the Milky Way，Battagli et al. 2005, MNRAS，364 (2005) 433

## 資料來源

1. Carroll, Bradley and Ostlie, Dale. An Introduction to Modern Physics, Second Edition. San Francisco: Pearson, 2007.