UKWIDE

UKWIDE is a significant subsample of the S82-MGC and forms the basis of the mass function results. See Paper I (Bundy et al. 2015) for details.

Name

Description

mfn_res

Raw "assumption-averaged" mass functions. No correction for the impact of measurement scatter has been applied. PRIMUS results from Moustasakas et al. 2013 have been appended below log Mstar < 11.3.

The 'mfn_res*.fits' binary FITS table contains a series of arrays and one scalar:

ZBINS Array[2, 4] - Upper and lower redshift limits for each of four bins

BINSZ Scalar - log Mstar bin size

WT Array[4,20] - Linear number density, unweighted by Mstar bin size, at 20 log Mstar values and 4 redshifts

NBIN Array[4,20] - Corresponding number of galaxies in each bin

XARR Array[20] - log Mstar at the center of each Mstar bin

ERR Array[4,20] - Linear Poisson error

LERR Array[4,20] - Log Poisson error

The mass functions (often log10(d Phi / dlogM)) can be plotted against log Mstar (XARR[*]) as log10(WT[i,*]/BINSZ) where i stands for the ith redshift bin.

forward_model

Double-Schechter parameters and intrinsic mass function values for the forward model that accounts for measurement scatter.

The forward_model binary FITS table ('param_res-*.fits') is a structure with 4 elements, one for each redshift bin.

For each redshift the following fields are provided:

ZBIN Array[2] - Upper and lower redshift limits

LOGPHI1 - Log Phi parameter for first Schechter component

ERR_LOGPHI1 - Associated error

LOGPHI2 - Log Phi parameter for second Schechter component

ERR_LOGPHI2 - Associated error

LOGM0 - Mass scale parameter

ERR_LOGM0 - Associated error

LOGMASS Array[20] - Log Mstar mass bin centers

LOGPHI_INTRINSIC Array[20] - Intrinsic best-fit model, sampled at each Mstar bin

LOGPHI_SCATTER Array[20] - Sampled model after including the estimated impact of measurement scatter

covar_mfn

Covariance matrices for S82 mass functions.

The 'covar_mfn_*.fits' FITS table contains three [20,20,4] arrays, evaluated at each of 20 mass bins (defined above) for 4 redshift intervals. The raw covariance, normalized covariance, and smoothed covariance are provided.

Mass Functions