[yt-users] Is there any methods to make peculiar velocity plots?

[Matthew Turk]

Hi Reju,

For the peculiar velocity plots, you'll have to use the constituent
information calculated about each individual halo and construct your
own plot; while we do have methods for creating plots with halo
circles overlaid, the specific item you're noting isn't yet included.
(It would be a *very* nice addition, however!)  For finding the
velocity, etc, that's all part of the standard halo output and halo
profiler output:

http://yt-project.org/docs/2.5/analysis_modules/running_halofinder.html

bulk_velocity, total_mass, etc.

The HaloProfiler would be a nice place to put the peculiar velocity
plot, and note that the halo finding by itself does not filter based
on virial parameter or radius, while the HaloProfiler does.

http://yt-project.org/docs/2.5/analysis_modules/halo_profiling.html

-Matt

On Mon, Jul 8, 2013 at 2:01 AM, Reju Sam John <rejusamjohn at gmail.com> wrote:
> Dear All,
>
> Is there any methods to make peculiar velocity plots in yt? or any methods
> to plot or calculate mean (and mass weighted among all constituents)
> velocity of a halo, averaged within the virial radius?
>
> Thank you for any help you can provide and for considering my request..
> --
> Reju Sam John
>
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