[yt-users] star_density slices

[Elizabeth Tasker]

Hi Britton,

I don't have any DM in my simulations, so I don't think that will 
produce anything?

Elizabeth


Britton Smith wrote:
> Hi Elizabeth,
>
> Matt and I are still puzzling over this.  It's not clear right now if 
> the issue is related to projecting particles in general in your data 
> or projecting star particles specifically.  Can you do another full 
> box projection for us, but this time with the field dm_density?  That 
> should help us to narrow down the problem.
>
> Britton
>
> On Mon, Jun 13, 2011 at 10:31 AM, Elizabeth Tasker 
> <taskere at mcmaster.ca <mailto:taskere at mcmaster.ca>> wrote:
>
>     Hi Matt and Britton,
>
>     I've attached the image for the stars over the whole disk; it
>     shows the same issue, with the grids (and also any gas property)
>     showing the region correctly, but the stars only appearing in a
>     small patch.
>
>     Matt, your script gives:
>
>     Min: [('x', 5.6774955112245706), ('y', 5.7878015648296586), ('z',
>     15.07668303734844)]
>     Max: [('x', 26.537083788811703), ('y', 25.802074691296504), ('z',
>     17.201602159672426)]
>
>
>     Which are the values I expect.
>
>     It could be, as Britton suggests, a problem with the box size not
>     being 0-1. Although, that is a particularly random patch it's
>     decided to fill in.
>
>     Elizabeth
>
>
>
>     Matthew Turk wrote:
>
>         Hi Elizabeth,
>
>         Weird.
>
>         This script should help us find out where the stars live.
>          What's it
>         give you?  (Replace the loaded dataset with your own.)
>
>         http://paste.enzotools.org/show/1696/
>
>         Also, it'd be nice to see that image Britton requested.
>
>         -Matt
>
>         On Fri, Jun 10, 2011 at 2:02 PM, Elizabeth Tasker
>         <taskere at mcmaster.ca <mailto:taskere at mcmaster.ca>> wrote:
>          
>
>             Oddly, neither of those make any difference.
>
>             Elizabeth
>
>
>
>             Britton Smith wrote:
>                
>
>                 I would also suggest trying some projections instead
>                 of slices as well.
>                  Both of those fields are created using the
>                 CIC_deposit interpolation method
>                 with just the star particles.  I could see a field
>                 like that being
>                 problematic when doing slices.
>
>                 Britton
>
>                 On Fri, Jun 10, 2011 at 4:10 PM, Cameron Hummels
>                 <chummels at astro.columbia.edu
>                 <mailto:chummels at astro.columbia.edu>
>                 <mailto:chummels at astro.columbia.edu
>                 <mailto:chummels at astro.columbia.edu>>> wrote:
>
>                   Try using the field StarMassMsun instead of
>                 star_density and see
>                   what it yields.  I've had better luck with that field.
>
>                   Cameron
>
>
>                   On 6/10/11 4:00 PM, Elizabeth Tasker wrote:
>                      
>
>                       Hi,
>
>                       Slices of the star_density field are only
>                     showing a tiny patch of
>                       the area in the corner, rather than the whole
>                     region. My script
>                       looks like:
>
>                       pc = PlotCollection(pf, center=[17.,11.5, 16])
>                       p = pc.add_slice("star_density", 2)
>                       pc.set_width(10, 'kpc')
>                       p.modify["grids"]()
>
>                       Density comes out fine and the grids are drawn
>                     in but then only a
>                       few of them get stars.
>
>                       Elizabeth
>
>
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