<p>At scales much larger than individual galaxies or clusters, the most straightforward approach is to simply study the distribution of galaxies. Galaxies trace the large-scale dark matter distribution, and although they are biased tracers, that bias <a href="https://arxiv.org/abs/1611.09787" rel="nofollow noreferrer">has been studied extensively</a>.</p>

CC BY-SA 4.0
2022-10-21T10:07:29.553Z
2022-10-21T10:07:29.553Z
Sten
<ol>
<li>Can we get the three-dimensional spatial distribution of dark matter through gravitational lensing?</li>
<li>If not, is there any other way?</li>
</ol>

<observational-astronomy><cosmology><dark-matter><gravitational-lensing>
Is there any method that enables us to observe the 3D large-scale spatial distribution of the dark matter?
Wang Yun
# Is there any method that enables us to observe the 3D large-scale spatial distribution of the dark matter?

(Asked by: username_0 on 2022-10-21)

1. Can we get the three-dimensional spatial distribution of dark matter through gravitational lensing?
2. If not, is there any other way?

**Tags:** observational-astronomy, cosmology, dark-matter, gravitational-lensing


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## 1 answers

### Answer by username_1 on 2022-10-21. Score: 2

At scales much larger than individual galaxies or clusters, the most straightforward approach is to simply study the distribution of galaxies. Galaxies trace the large-scale dark matter distribution, and although they are biased tracers, that bias [has been studied extensively](https://arxiv.org/abs/1611.09787).


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