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params.yaml
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params.yaml
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Info: # Survey information
survey: 'Beyond2pt' # Name of survey
sample: 'C_mock_lightcone' # Name of tracer sample
random: 'C_mock_lightcone_R10' # Name of random sample
version: '_0300' # Version (suffix) of void catalog
redshift: [0.8,1.3] # Redshift range
sky: 3759.6159 # Sky area in square degrees (full sky ~ 41253)
cosmology: "wCDM" # Cosmological model to constrain (current options: "LCDM", "wCDM", "w0waCDM")
IO: # Input / output
runExec: True # If True, run executable when called
basePath: '' # Location of the top level code directory relative to current working directory
tracerPath: 'catalogs/tracers/' # Location of tracer catalogs relative to basePath
voidPath: 'catalogs/voids/' # Location of void catalogs relative to basePath
outPath: 'results/' # Location to store output files relative to basePath
plotPath: 'plots/' # Location to store plots relative to outPath
inputFormat: 'hdf5' # Filetype for input tracer and random catalogs (supported types: https://docs.astropy.org/en/stable/io/unified.html)
inputExtension: 'h5' # Filename extension for input tracer and random catalogs
figFormat: 'pdf' # Format to save figures (e.g., pdf, png, jpg)
columnNames: ['RA','DEC','Z_red'] # Tracer and random catalog column headers for right ascension, declination, redshift (angles in degrees)
stackFile: 'stacks' # Filename for data of stacks
chainFile: 'chains' # Filename for data of chains
continueStack: True # If True, continue using previous stacks. If False, delete old stacks.
continueChain: False # If True, continue sampling of previous chains. If False, delete old chains.
Selection: # Void selection
zv: [0.8,1.3] # Void redshift range
rv: [35.,1.e+9] # Void radius range
mv: [0.0,1.e+9] # Void mass range (number of tracers per void)
dv: [0.0,1.e+9] # Void core (minimum) density range
Cv: [0.0,1.e+9] # Void compensation range
ev: [0.0,1.e+9] # Void ellipticity range
mgs: [2.0,1.e+9] # Void radius range in units of mean galaxy separation (mgs)
Bins: # Binning parameters
vbin: 'zv' # 'zv': void-redshift bins, 'rv': void-radius bins
binning: 'lin' # 'eqn': equal number of voids, 'lin': linearly spaced, 'log': logarithmicly spaced. Alternatively, provide a list for custom bin edges
Nvbin: 2 # Number of void bins
Nrbin: 20 # Number of radial bins in correlation function
Nrskip: 1 # Number of radial bins to skip in fit (starting from the first bin)
rmax: 3. # Maximum radial distance in units of void radius
ell: [0,2,4] # Multipole orders to consider
Nside: 128 # Mask resolution for generating random voids
symLOS: True # If True, assume void-centric symmetry along LOS (no odd multipoles).
project2d: True # If True, the projected correlation function is calculated from the POS vs. LOS 2d correlation function
rescov: False # If True, calculate covariance matrix for residuals between data and model (experimental!)
datavec: '2d' # Define data vector, '1d': multipoles, '2d': POS vs. LOS 2d correlation function
Computing: # Computing parameters
Ncpu: 16 # Number of CPUs to use
Nmock: 1 # Number of mock realizations (for observation = 1)
Nbin_nz: 20 # Number of bins for redshift distributions
Nbin_nv: 8 # Number of bins for void abundance function
Nspline: 200 # Number of nodes for splines (only for visualization in plots, does not affect fit)
Nsmooth: 0.5 # Smoothing factor for splines (for no smoothing = 0)
Nwalk: 16 # Number of MCMC walkers (ideally equal to Ncpu)
Nchain: 1000 # Length of each MCMC chain
Nburn: 3.0 # Initial burn-in steps of chain to discard, in units of auto-correlation time
Nthin: 0.5 # Thinning factor of chain, in units of auto-correlation time
Nmarg: 4.0 # Margin size for parameter limits in plots, in units of standard deviation
Model: # Model parameters with fiducial values and priors
par:
f/b: 0.5 # Redshift-space distortion parameter
qper: 1.0 # Perpendicular Alcock-Paczynski parameter
qpar: 1.0 # Parallel Alcock-Paczynski parameter
M: 1.0 # Monopole nuisance parameter
Q: 1.0 # Quadrupole nuisance parameter
prior:
f/b: [-10.,10.]
qper: [-10.,10.]
qpar: [-10.,10.]
M: [-10.,10.]
Q: [-10.,10.]
Cosmo: # Cosmological parameters with fiducial values and priors
par_cosmo:
Om: 0.30 # Omega_matter
Ok: 0.00 # Curvature
w0: -1.0 # DE eq. of state (constant)
wa: 0.00 # DE eq. of state (slope)
s8: 0.80 # RMS of density fluctuations of scale 8 Mpc/h
h: 0.70 # Reduced Hubble constant
b0: 1.20 # Linear tracer bias at z=0
prior_cosmo: # Only provide for sampled parameters
Om: [0.0,1.0]
w0: [-2,-0.333]
#wa: [-10,10]
blind: True # If True, subtract mean of cosmology posterior