NcDataCMB: NumCosmo Reference Manual

NcDataCMB

NcDataCMB — Helper function for instantiating CMB data

Stability Level

Stable, unless otherwise indicated

Functions

Types and Values

enum	NcDataCMBDataType
enum	NcDataCMBId

Object Hierarchy

    GEnum
    ╰── NcDataCMBId
    GFlags
    ╰── NcDataCMBDataType

Includes

#include <numcosmo/data/nc_data_cmb.h>

Description

This function is an interface to all available CMB related data.

The NcDataCMBDataType is not available yet.

The NcDataCMBId contains the so-called distance priors:

Shift parameter $R$: NcDataCMBShiftParam (see also nc_distance_shift_parameter).
Location of the first acoustic peak $l_A$ (see Hinshaw et al. (2012) section 4.6.1 [arXiv]).

Functions

nc_data_cmb_create ()

NcmData *
nc_data_cmb_create (NcDistance *dist,
                    NcDataCMBId id);

Creates a new NcmData of type NcDataCMBId.

Parameters

dist	a NcDistance
id	a NcDataCMBId

Returns

a NcmData.

[transfer full]

Types and Values

enum NcDataCMBDataType

Each type corresponds to one CMB two-point correlation function data to be used: TT (temperature only), EE (E-mode only), BB (B-mode only), TE (temperature and E-mode polarization), TB (temperature and B-mode polarization), EB (E- and B-mode polarization) and $\phi\phi$ (CMB lensing). The last option `ALL' selects all data listed above.

Members

NC_DATA_CMB_TYPE_TT	Temperature - Temperature correlation data
NC_DATA_CMB_TYPE_EE	Mode E - Mode E correlation data
NC_DATA_CMB_TYPE_BB	Mode B - Mode B correlation data
NC_DATA_CMB_TYPE_TE	Temperature - Mode E correlation data
NC_DATA_CMB_TYPE_TB	Temperature - Mode B correlation data
NC_DATA_CMB_TYPE_EB	Mode E - Mode B correlation data
NC_DATA_CMB_TYPE_PHIPHI	$\phi$ - $\phi$ correlation data
NC_DATA_CMB_TYPE_ALL	All types above

enum NcDataCMBId

Wilkinson Microwave Anisotropy Probe (WMAP) distance priors and shift parameter estimates.

The so-called distance priors comprises the location of the first acoustic peak $l_A$ and the shift parameter $R$, that is, $$l_A \equiv (1 + z_\star) \frac{\pi D_A(z_\star)}{r_s(z_\star)}$$ and $$R = \frac{\sqrt{\Omega_m H_0^2}}{c} (1 + z_\star) D_A(z_\star),$$ where $z_\star$ is the redshift at decoupling, $D_A(z)$ is the angular diameter distance, and $r_s(z_\star)$ is the sound horizon size.

Members

NC_DATA_CMB_SHIFT_PARAM_WMAP3	three-year WMAP shift parameter
NC_DATA_CMB_SHIFT_PARAM_WMAP5	five-year WMAP shift parameter
NC_DATA_CMB_SHIFT_PARAM_WMAP7	seven-year WMAP shift parameter
NC_DATA_CMB_DIST_PRIORS_WMAP5	five-year WMAP distance priors
NC_DATA_CMB_DIST_PRIORS_WMAP7	seven-year WMAP distance priors
NC_DATA_CMB_DIST_PRIORS_WMAP9	nine-year WMAP distance priors