[yt-users] Halo positions in merger trees

[Jean-Claude Waizmann]

Hi Stephen,

well, actually I already did that, for the single HOP run, I used:

sphere = pf.h.sphere([0.5 0.5 0.5],1.0)
hop_results = lagos.hop.HopList(sphere, 80.000000)

which I copied from the merger code, so the thresholds were the same,
unfortunately.

-Jean-Claude


Am Donnerstag, den 06.08.2009, 06:51 -0700 schrieb Stephen Skory:
> Jean-Claude,
> 
> 
> > The difference in mass between the first two is strange as well. Did
> > anybody encounter the same problem and/or knows where it is coming from?
> 
> I suspect I may be partly at fault. The default over density threshold in yt-HOP is 160.0, but it looks like I set it to run at 80.0 in the merger tree script. Can you try re-running when the thresholds are all the same? There may be something else going on, but let's make sure that's not the problem, first.
> 
> Good luck!
> 
>  _______________________________________________________
> sskory at physics.ucsd.edu           o__  Stephen Skory
> http://physics.ucsd.edu/~sskory/ _.>/ _Graduate Student
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