<p>&quot;re-doing the simulation&quot; with different parameters, for example more detailed resolution in space or time, or focussing on a small area.</p>
<blockquote>
<p>One of the particularity of the HORIZON 3 project is that it allows the re-simulation of some areas of interest for astronomers. For example in Figure 3, a supercluster of galaxies has been chosen to be re-simulated at a higher resolution (highest number of particules) taking the initial information and the boundary conditions from the larger box (of lower resolution) (<a href="https://www.researchgate.net/figure/Re-simulation-on-a-supercluster-of-galaxies-to-increase-the-resolution_fig2_220951314" rel="nofollow noreferrer">source</a>)</p>
</blockquote>
<p>The simulation in a smaller area can be redone at greater detail using the first simulation as a starting point.</p>

CC BY-SA 4.0
2024-05-30T20:49:02.520Z
2024-05-30T20:49:02.520Z
James K
<p>In the context of galaxy formation and evolution simulations, what is a re-simulation and how is it different from a simulation?</p>

CC BY-SA 4.0
2024-05-30T20:43:28.863Z
Where did you see the word written?  Does "another simulation" make sense in context? Needs detail
James K
CC BY-SA 4.0
2024-06-03T14:41:19.540Z
I read it in an article and it was used as a noun with little detail about the method. It's not my area, so I didn't know if it referred to a specific way of simulating a DM halo.
eneguev
CC BY-SA 4.0
2024-06-03T18:04:41.750Z
Which article?  you should link to the article so we can see the context.  Or at very least give a proper citation so someone could check it out.
James K
<galaxy><formation><galactic-evolution><physics-simulations>
What is a "re-simulation"?
eneguev
# What is a "re-simulation"?

(Asked by: username_0 on 2024-05-30)

In the context of galaxy formation and evolution simulations, what is a re-simulation and how is it different from a simulation?

**Tags:** galaxy, formation, galactic-evolution, physics-simulations
> **Comments:**
> **username_1**: Where did you see the word written?  Does "another simulation" make sense in context? Needs detail  
> **username_0**: I read it in an article and it was used as a noun with little detail about the method. It's not my area, so I didn't know if it referred to a specific way of simulating a DM halo.  
> **username_1**: Which article?  you should link to the article so we can see the context.  Or at very least give a proper citation so someone could check it out.  

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## 1 answers

### Answer by username_1 on 2024-05-30. Score: 2 | Accepted answer

"re-doing the simulation" with different parameters, for example more detailed resolution in space or time, or focussing on a small area.

> One of the particularity of the HORIZON 3 project is that it allows the re-simulation of some areas of interest for astronomers. For example in Figure 3, a supercluster of galaxies has been chosen to be re-simulated at a higher resolution (highest number of particules) taking the initial information and the boundary conditions from the larger box (of lower resolution) ([source](https://www.researchgate.net/figure/Re-simulation-on-a-supercluster-of-galaxies-to-increase-the-resolution_fig2_220951314))

The simulation in a smaller area can be redone at greater detail using the first simulation as a starting point.


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