Covariance of Tomographic Cosmic Shear COSEBI Output Product

Data product name

CovarTwoPCFWLCOSEBIShearShear2D

Data product custodian

CM-2PCF-WL

Data model tag

Trunk, commit 18691

Name of the Schema file

euc-test-le3-wl-cm2pcf-COSEBIShearShear2D.xsd

Schema documentation tag

Data product documentation:

Data Product for CovarTwoPCFWLCOSEBIShearShear2D

Documentation for data product element dpdCovarTwoPCFWLCOSEBIShearShear2D:

This product contains the covariance matrix for cosmic shear COSEBI modes.

Documentation for data product element Header:

The generic header of the product

Documentation for data product element Data:

The data of the product

Data product elements

Header of type: sys:genericHeader

Data of type: wlcm2pcf:covarTwoPCFWLCOSEBIShearShear2D

Parameters of type: ppr:genericKeyValueParameters

Processing Element(s) creating/using the data product

CM-2PCF-WL

Processing function using the data product

SGS pipeline output product to be used by SWGs

Detailed description of the data product

This output product is a fits binary table containing important input parameters as keywords in primary HDU, and a binary table in the next HDU with the covariance for cosmic shear COSEBI modes, as described in

  • SpatialCoverage a description of the spatial footprint [optional, cot:spatialFootprint],

  • CatalogSelection: describing the selection in the input catalogues [optional, up to 4 elements]

    • CatalogFileName: the name of the input catalogue [sys:dataFileName]

    • Selection: selection associated to catalogue [string]

    • CatalogUse: for which use case the catalog is employed (=[“ShearShear”]) [string among “PosPos”, “PosShear”, “ShearShear”]

    • CatalogInfo: whether position or shear information is used in this catalogue (=[“Shear”]) [string among “Pos”, “Shear”]

    • CatalogOrder: order associated to catalogue for reporting (e.g. BIN_ID1)[int32]

Keywords

This fits table is expected to contain the following keywords in primary HDU, characterizing the important parameters of the product:

  1. RS_EST: choice of resampling estimator (Jackknife, Bootstrap) [StringKeyword]

  2. RS_STR: choice of resampling strategy (Catalog, Spatial) [StringKeyword]

  3. THMIN: minimal angular value chosen for spatial binning [DoubleKeyword]

  4. THMAX: maximal angular value chosen for spatial binning [DoubleKeyword]

  5. OATH: maximal open angle value used for the approximation [DoubleKeyword]

  6. THUNIT: unit of spatial distance [StringKeyword]

  7. BINSCALE: whether lin or log bins [StringKeyword]

  8. COORDSYS: if spherical or cartesian computation of distances [StringKeyword]

  9. NMODES: number of COSEBI modes [IntegerKeyword]

  10. SHE_SOFT: which SHE catalogue used [StringKeyword]

  11. SHE_SEL: selection for shear catalogue [StringKeyword]

  12. SOFTNAME: name of software used for 2PCF [StringKeyword]

  13. SOFTVERS: version of software used for 2PCF [StringKeyword]

Covariance table

The table (first HDU, EXTNAME=”RS_COVAR_COSEBI_SHEARSHEAR2D”) will contain the following columns:

  1. MODE1: first COSEBI mode [I, int16]

  2. MODE2: second COSEBI mode [I, int16]

  3. BIN_COMB1: first index for combination of redshift bins [J, int32]

  4. BIN_COMB2: second index for combination of redshift bins [J, int32]

  5. EE_EE: covariance between E COSEBI [D, float64]

  6. BB_BB: covariance between B COSEBI [D, float64]

  7. EB_EB: covariance between EB cross COSEBI [D, float64]

  8. EE_BB: covariance between E and B COSEBI [D, float64]

  9. EE_EB: covariance between E and EB COSEBI [D, float64]

  10. BB_EB: covariance between B and EB COSEBI [D, float64]

Note

Under discussion is the possibility in the future of having as first HDU an estimate for Shot Noise :

  1. MODE1: first COSEBI mode [I, int16]

  2. MODE2: second COSEBI mode [I, int16]

  3. BIN_COMB1: first index for combination of redshift bins [J, int32]

  4. BIN_COMB2: second index for combination of redshift bins [J, int32]

  5. EE_EE_SH: covariance between E COSEBI (shape noise) [D, float64]

  6. BB_BB_SH: covariance between B COSEBI (shape noise) [D, float64]

  7. EB_EB_SH: covariance between EB cross COSEBI (shape noise) [D, float64]

  8. EE_BB_SH: covariance between E and B COSEBI (shape noise) [D, float64]

  9. EE_EB_SH: covariance between E and EB COSEBI (shape noise) [D, float64]

  10. BB_EB_SH: covariance between B and EB COSEBI (shape noise) [D, float64]