<p>Do you mean observed or simulated? I assume the former, but observing the mass <span class="math-container">$M_\mathrm{h}$</span> of a dark matter (DM) halo is not easy (I mean, they're invisible), so you need a model to relate <span class="math-container">$M_\mathrm{h}$</span> to some observable.</p>
<h3>&quot;Observed&quot; dark matter halos</h3>
<p>Typically, such measurements are not made in large bulks, so I don't think you can find a &quot;list&quot;. Rather, models are constructed based on theory and a few observations, together with previous observations. Popular ways to obtain <span class="math-container">$M_\mathrm{h}$</span> is <em>abundance matching</em>, where a property of the DM halos (in this case mass) is assumed to correlate tightly with some observable such as stellar mass/luminosity (e.g. <a href="https://ui.adsabs.harvard.edu/abs/2013ApJ...771...30R" rel="nofollow noreferrer">Reddick et al. 2013</a>; <a href="https://ui.adsabs.harvard.edu/abs/2013ApJ...770...57B" rel="nofollow noreferrer">Behroozi et al. 2013</a>).</p>
<p>A more direct way is — as discussed in the last section of <a href="https://astronomy.stackexchange.com/a/39537/5264">this answer</a> — to measure the width of emission lines, but in order to convert this into <span class="math-container">$M_\mathrm{h}$</span> requires measuring the radius as well, which can only be done for the luminous matter, and is particularly difficult for small, faint galaxies.</p>
<h3>Clusters and groups of galaxies</h3>
<p>Inferring <span class="math-container">$M_\mathrm{h}$</span> for clusters of galaxies is easier, I think, as one can be moderately confident that the gas is in hydrostatic equilibrium and hence relate the observed X-ray brightness to halo mass (e.g. <a href="https://ui.adsabs.harvard.edu/abs/2013ApJ...766...32B/abstract" rel="nofollow noreferrer">Bhattacharya et al. 2013</a>). See also <a href="https://ui.adsabs.harvard.edu/abs/2009ApJ...695..900Y" rel="nofollow noreferrer">Yang et al. (2009)</a>.</p>
<h3>Simulated dark matter halos</h3>
<p>I don't know why you need such a list, but if you're okay with (hydrodynamically) <em>simulated</em> galaxies, then there are plenty of such catalogues, since in this case we know exactly the masses of their different components. <a href="https://en.wikipedia.org/wiki/Joanne_Cohn" rel="nofollow noreferrer">Joanne Cohn</a> at Berkeley has compiled a <a href="http://w.astro.berkeley.edu/%7Ejcohn/mocklist.html" rel="nofollow noreferrer">list of simulated galaxy catalogues</a> (note that the list also contains catalogues of dark matter-only simulations).</p>

CC BY-SA 4.0
2020-11-12T12:09:49.170Z
2020-11-12T12:09:49.170Z
pela
<p>This paper by Wechsler &amp; Tinker (2018) should give you a better direction. Depending on the model, different estimates of DM halos come up. You just need to go through the sections on observational evidence and the underlying papers.</p>
<p><a href="https://arxiv.org/pdf/1804.03097.pdf" rel="nofollow noreferrer">https://arxiv.org/pdf/1804.03097.pdf</a></p>

CC BY-SA 4.0
2020-11-11T21:04:25.620Z
2020-11-11T21:04:25.620Z
Matthias Schmitt
<p>Where can one find the list of galaxies with their dark halo masses, I've searched several sites but I found no such proper list where the masses of their dark matter halo is compiled?</p>
<p>Can anybody help?</p>

<galaxy><universe><space><dark-matter><mass>
List of galaxies with their dark matter halo
Nitin Kumar Chauhan
# List of galaxies with their dark matter halo

(Asked by: username_0 on 2020-11-11)

Where can one find the list of galaxies with their dark halo masses, I've searched several sites but I found no such proper list where the masses of their dark matter halo is compiled?

Can anybody help?

**Tags:** galaxy, universe, space, dark-matter, mass

---

## 2 answers

### Answer by username_1 on 2020-11-12. Score: 2

Do you mean observed or simulated? I assume the former, but observing the mass $M\_\mathrm{h}$ of a dark matter (DM) halo is not easy (I mean, they're invisible), so you need a model to relate $M\_\mathrm{h}$ to some observable.

### "Observed" dark matter halos

Typically, such measurements are not made in large bulks, so I don't think you can find a "list". Rather, models are constructed based on theory and a few observations, together with previous observations. Popular ways to obtain $M\_\mathrm{h}$ is *abundance matching*, where a property of the DM halos (in this case mass) is assumed to correlate tightly with some observable such as stellar mass/luminosity (e.g. [Reddick et al. 2013](https://ui.adsabs.harvard.edu/abs/2013ApJ...771...30R); [Behroozi et al. 2013](https://ui.adsabs.harvard.edu/abs/2013ApJ...770...57B)).

A more direct way is — as discussed in the last section of [this answer](https://astronomy.stackexchange.com/a/39537/5264) — to measure the width of emission lines, but in order to convert this into $M\_\mathrm{h}$ requires measuring the radius as well, which can only be done for the luminous matter, and is particularly difficult for small, faint galaxies.

### Clusters and groups of galaxies

Inferring $M\_\mathrm{h}$ for clusters of galaxies is easier, I think, as one can be moderately confident that the gas is in hydrostatic equilibrium and hence relate the observed X-ray brightness to halo mass (e.g. [Bhattacharya et al. 2013](https://ui.adsabs.harvard.edu/abs/2013ApJ...766...32B/abstract)). See also [Yang et al. (2009)](https://ui.adsabs.harvard.edu/abs/2009ApJ...695..900Y).

### Simulated dark matter halos

I don't know why you need such a list, but if you're okay with (hydrodynamically) *simulated* galaxies, then there are plenty of such catalogues, since in this case we know exactly the masses of their different components. [Joanne Cohn](https://en.wikipedia.org/wiki/Joanne_Cohn) at Berkeley has compiled a [list of simulated galaxy catalogues](http://w.astro.berkeley.edu/%7Ejcohn/mocklist.html) (note that the list also contains catalogues of dark matter-only simulations).


---

### Answer by username_2 on 2020-11-11. Score: 2

This paper by Wechsler & Tinker (2018) should give you a better direction. Depending on the model, different estimates of DM halos come up. You just need to go through the sections on observational evidence and the underlying papers.

<https://arxiv.org/pdf/1804.03097.pdf>


---

