Friday, April 8, 2011
Halo Gallery: Corrected
The bug in Mike's halo files has been corrected, and these are the updated plots of the highest velocity particles in the halo, at early times.
Wednesday, March 9, 2011
Halo Gallery II
The previous halo gallery was annoying because it was impossible to see structure, because the plots wer saturated. I thinned the particles out by a factor of 50... Here are the same set of halos, with slightly better contrast.
Halo Gallery
I have automated plot making, and have generated a gallery of 7 halos, that exist in mikes directory path = '/u/msw/lcdm_me/4-512/halos/'
The plots show 6 snapshots of the locations of particles whose velocities were within 100km/s of the fastest particle in each radial bin at z~0.
You can click on the plots to make them larger. I didn't find these super interesting, honestly. There seem to be two classes, round, and not round... and the round ones have a tendency to have a ring of higher v particles around the outside... In all cases it seems like bulk motion happens more than evolution in the shape of the distribution of high v particles since z~1, which continues to surprise me.
Incidentally, I was using the halo files in the halo directory (on which the subhalo finder has not yet been run) and it makes me nervous that halo 4 does not seem to agree with the plots I made using the halo_iso_004 file (which should have the same particles, just with subhalo labels). Another worrysome thing, it looks like several of these halos are in roughly the same spot, and the particles they are built out of all overlap, does this bother anybody else??
The plots show 6 snapshots of the locations of particles whose velocities were within 100km/s of the fastest particle in each radial bin at z~0.
You can click on the plots to make them larger. I didn't find these super interesting, honestly. There seem to be two classes, round, and not round... and the round ones have a tendency to have a ring of higher v particles around the outside... In all cases it seems like bulk motion happens more than evolution in the shape of the distribution of high v particles since z~1, which continues to surprise me.
Incidentally, I was using the halo files in the halo directory (on which the subhalo finder has not yet been run) and it makes me nervous that halo 4 does not seem to agree with the plots I made using the halo_iso_004 file (which should have the same particles, just with subhalo labels). Another worrysome thing, it looks like several of these halos are in roughly the same spot, and the particles they are built out of all overlap, does this bother anybody else??
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