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# CSiBORG Tools
Tools for analysing the suite of Constrained Simulations in BORG (CSiBORG) simulations. The interface is designed to work with the following suites of simulations: *CSiBORG1* (dark matter-only RAMSES), *CSiBORG2* (dark matter-only Gadget4), *Quijote* (dark-matter only Gadget2), however with little effort it can support other simulations as well.
Tools for analysing constrained cosmological simulations.
## TODO
- [ ] In flow models test in a script that indeed the parallelization is working.
- [ ] Extend the parallelization to supernovae/simple distances.
## Ongoing projects
### Data to calculate
- [x] Process all CSiBORG1 snapshots (running).
- [ ] Calculate halo properties for CSiBORG1
- [x] Calculate initial properties for CSiBORG1
- [ ] Calculate halo properties for CSiBORG2
- [x] Calculate initial properties for CSiBORG2
- [ ] Process all Quijote simulations.
- [ ] Calculate halo properties for Quijote
- [ ] Calculate initial properties for Quijote
### General
- [ ] Add new halo properties to the catalogues.
- [x] Add initial halo properties to the catalogues.
- [x] Add a new flag for flipping x- and z-coordinates fro catalogues, snapshots and field readers.
- [x] Add radial velocity field loader.
### Consistent halo reconstruction
- [ ] Make a sketch of the overlap definition and add it to the paper.
- [ ] Re-calculate the overlaps for CSiBORG1, Quijote and CSiBORG2
- [x] Fix the script to calculate the initial lagrangian positions etc.
### Enviromental dependence of galaxy properties
- [x] Prepare the CSiBORG one particle files for SPH.
- [ ] Transfer, calculate the SPH density field for CSiBORG1 and transfer back.
- [x] Check that the velocity-field flipping of x and z coordinates is correct.
- [x] Evaluate and share the density field for SDSS and SDSSxALFALFA for both CSiBORG2 and random fields.
- [x] Check and verify the density field of galaxy colours (cannot do this now! Glamdring is super slow.)
- [x] Calculate the radial velocity field for random realizations (submitted)
- [x] Send Catherine concatenated data.
- [ ] Start analyzing DiSPERSE results.
### Mass-assembly of massive clusters
- [ ] Make a list of nearby most-massive clusters.
- [ ] Write code to identify a counterpart of such clusters.
- [ ] Write code to make a plot of mass-assembly of all clusters within a certain mass range from the random simulations.
- [ ] Write code to compare mass-assembly of a specific cluster with respect to random ones.
### Effect of small-scale noise
- [ ] Study how the small-scale noise variation affects the overlap measure, halo concentration and spin.
- [ ] Add uncertainty on the halo concentration.
### Gravitational-wave and large-scale structure
- [ ] Validate the velocity field results agains Supranta data sets.
- [x] Write code to estimate the enclosed mass and bulk flow.
- [ ] Write code to estimate the average radial velocity in a spherical shell.
- [ ] Write code to calculate the power spectrum of velocities.
- [ ] Estimate the amplitude of the velocity field in radial shells around the observer, estimate analogous results for random simulations, and see if they agree within cosmic variance.
- [ ] Calculate power spectra of velocities and maybe velocity dispersion.
- [ ] Make the velocity field data available.
### CSiBORG meets X-ray
- [x] Make available one example snapshot from the simulation. Mention the issue with x- and z-coordinates.
- [ ] Answer Johan and make a comparison to the Planck clusters.
### CSiBORG advertising
- [ ] Decide on the webpage design and what to store there.
- [ ] Write a short letter describing the simulations.
### Calculated data
#### Enclosed mass & bulk velocity
- *CSiBORG2_main*, *CSiBORG2_varysmall*, *CSiBORG2_arandom*
#### SPH-density & velocity field
- *CSiBORG2_main*, *CSiBORG2_random*, *CSiBORG2_varysmall*
- Evaluated for SDSS and SDSSxALFALFA in: *CSiBORG2_main*, *CSiBORG2_random*
#### Radial velocity field
- *CSiBORG2_main, *CSiBORG2_random*
- [ ] Remove Gaussian priors and switch to uniform. Can the beta preference be a volume effect?
- [ ] Verify the effects of resolution (compare how Carrick worsens) and what happens to the LG velocity.