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* add recarray manipulations

* add cart to radec

* add behav so x can be a list

* add import

* create empty files

* ignore plots file

* add planck data

* add read_mmain file

* add cols_to_structured import

* use cols_to_structured

* add cols_to_structued

* add read_mmain import

* add reading planck

* add mass conversion

* add brute force separation calculation

* update nb

* rename & int dtype

* add func to get csiborg ids

* add list to nd array conversion

* add utils

* rename file

* add 2M++

* add read 2mpp

* add 2mpp shortcut

* add randoms generator

* Change range of RA [0, 360]

* fix ang wrapping

* add code for sphere 2pcf

* rm wrapping

* optionally load only a few borgs

* update nb
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Richard Stiskalek 2022-10-18 19:41:20 +01:00 • committed by GitHub
parent d2c1f3294a
commit 53a0629d90
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Various column names
Clump file columns:
"index", "lev", "parent", "ncell", "peak_x", "peak_y", "peak_z", "rho-", "rho+", "rho_av", "mass_cl", "relevance"
Mergertree file columns:
"clump", "progenitor", "prog outputnr", "desc mass", "desc npart", "desc x", "desc y", "desc z", "desc vx", "desc vy", "desc vz"
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
The merger trees are stored in `output_XXXXX/mergertree_XXXXX.txtYYYYY` files. Each file contains 11 columns:
* `clump`: clump ID of a clump at this output number
* `progenitor`: the progenitor clump ID in output number "prog_outputnr"
* `prog_outputnr`: the output number of when the progenitor was an alive clump
* `desc mass`: mass of the current clump.
* `desc npart`: number of particles of the current clump.
* `desc x,y,z`: x, y, z position of current clump.
* `desc vx, vy, vz`: x, y, z velocities of current clump.
desc_mass and desc_npart will be either inclusive or exclusive, depending on how you set the `use_exclusive_mass` parameter.
(See below for details)
**How to read the output:**
* A clump > 0 has progenitor > 0: Standard case. A direct progenitor from the adjacent previous snapshot was identified for this clump.
* A clump > 0 has progenitor = 0: no progenitor could be established and the clump is treated as newly formed.
* A clump > 0 has progenitor < 0: it means that no direct progenitor could be found in the adjacent previous snapshot, but a progenitor was identified from an earlier, non-adjacent snapshot.
* A clump < 0 has progenitor > 0: this progenitor merged into this clump, but is not this clump's main progenitor.
* A clump < 0 has progenitor < 0: this shouldn't happen.
### Visualisation
`ramses/utils/py/mergertreeplot.py` is a python 2 script to plot the merger trees as found by this patch.
Details on options and usage are at the start of the script as a comment.