Output Product: E/B modes for clusters

Metadata

Data product name	DpdTwoDMassConvergenceClusters
Data product custodian	WLTWODMASS
Name of the Schema file	euc-le3-wl-twodmass-ConvergenceClusters.xsd
Last Edited for DPDD Version	1.1
Processing Element(s) creating/using the data product	Creators: LE3_2D_MASS_WL_KS Consumers: LE3_2D_MASS_WL_KS
Processing function using the data product	LE3_2D_MASS_WL_KS Science Working Group
Proposed for inclusion in EAS/SAS	This product is proposed for inclusion in the SAS: Yes This product is an internal data product of the SGS that can be used by CL PFs.

Data Product Elements

Header	object of type sys:genericHeader
Data	object of type wl2dmass:twoDMassCollectClusterConvergencePatch
QualityFlags	object of type dqc:sqfPlaceHolder
Parameters	object of type ppr:genericKeyValueParameters

Detailed Description of the Data Product

This product contains 2D convergence maps (denoised and noisy), shear maps, and the noise standard deviation maps for one or more clusters.

This output product contains three optional FITS structures:

• a cube map per cluster associated to a FITS in [NoisyConvergence xml tag] containing:

  • a data cube containing the E/B convergence modes, the total galaxy weight per pixel, the galaxy density per pixel, the noise standard deviation map (STD), the shear, and the denoised convergence;

  • the Euclid visibility mask projected onto the patch.

• a “NResamples” field to specify the number of samples that were used to compute the STD maps [int]

• a “McSeed” field to specify the seed of the random number generator [int]

Convergence/shear cube

This FITS file is associated to a structure called NoisyConvergence (to be renamed after DR1). The cluster number is given in the filename.

<NoisyConvergence format="le3.wl.2dmass.output.clusterconvergence" version="1.0">
  <DataContainer filestatus="PROPOSED">
    <FileName>EUC_LE3_2D-MASS-WL_CLUSTER0_CARTCONV_20250116T130621.609862Z_2.7.fits</FileName>
  </DataContainer>
</NoisyConvergence>

Primary HDU:

HDU PRIMARY: header
	Name	Description	Value
Keywords	SIMPLE		logical
	BITPIX		integer
	NAXIS		integer
	EXTEND		logical
	SHE_SOFT	where the input catalogue is coming from	string
	SHE_SEL	where the input catalogue is coming from	string
	SOFTNAME	software used to create the product	string
	SOFTVERS	software version	string
	PROJ	projection used (e.g. TAN)	string
	PWIDTH	patch width	double
	PIXSIZE	pixel size	double
	NITREDSH	number of iterations for reduced shear	integer
	STDREDSH	std of gaussian smoothing for reduced shear	double
	NITINP	number of iterations for inpainting	integer
	NSCINP	number of scales for inpainting	integer
	EB_CONSTRAINT	true if constraints applied in E/B mode during inpainting.	logical
	ADDBORD	true if borders added for inpainting	logical
	DENTYPE	denoising type	string
	GAUSSSTD	std of gaussian smoothing	double
	FDRVAL	false discovery rate threshold	double
	CL_ID	cluster ID	integer
	CL_RICH	cluster richness	double
	BLINDING	Flag that identifies products that have been blinded for scientific analysis	string

Cube extension:

For the array in HDU (EXTNAME = “KAPPA”), the following keywords are specified:

Header:

HDU KAPPA: header
	Name	Description	Value
Keywords	XTENSION		string
	BITPIX		integer
	NAXIS		integer
	NAXIS1		integer
	NAXIS2		integer
	NAXIS3		integer
	PCOUNT		integer
	GCOUNT		integer
	WCSAXES	number of axes in World Coordinate System	integer
	CRPIX1	pixel coordinate of reference point in axis1	double
	CRPIX2	pixel coordinate of reference point in axis2	double
	PC1_1	coordinate transformation matrix element	double
	PC1_2	coordinate transformation matrix element	double
	PC2_1	coordinate transformation matrix element	double
	PC2_2	coordinate transformation matrix element	double
	CDELT1	increment at reference point in axis1	double
	CDELT2	increment at reference point in axis2	double
	CUNIT1	unit of the first coordinate value	string
	CUNIT2	unit of the second coordinate value	string
	CTYPE1	WCS type of the first coordinate	string
	CTYPE2	WCS type of the second coordinate	string
	CRVAL1	value at reference point in axis1	double
	CRVAL2	value at reference point in axis2	double
	LONPOLE	native longitude of the pole	double
	LATPOLE	native latitude of the pole	double
	RADESYS	equatorial coordinate system	string
	EQUINOX	equinox of celestial coordinate system	double
	EXTNAME	name of this image extension	string
	ZMIN	minimum redshift of the bin	double
	ZMAX	maximum redshift of the bin	double

HDU KAPPA: 1 array info
	Format	Number of Dimensions	Unit
ArrayInfo	-32	3	NA

HDU KAPPA: 2 array axes
	Name	Projection Algorithm	Type	Unit
AxesList	RA	TAN	RA	deg
	DEC	TAN	DEC	deg

The array contains 9 images in that order:

• Convergence E mode

• Convergence B mode

• Weight map (total galaxy weight per pixel)

• Noise standard deviation of E and B modes over all NResamples realisations

• Shear first component

• Shear second component

• Density map (number of galaxies per pixel)

• Convergence E mode (denoised, according to input parameters)

• Convergence B mode (denoised, according to input parameters)

Mask extension:

The mast extension (MASK) is filled with the Euclid mask projected onto the cluster patch.

Header:

HDU MASK: header
	Name	Description	Value
Keywords	XTENSION		string
	BITPIX		integer
	NAXIS		integer
	NAXIS1		integer
	NAXIS2		integer
	NAXIS3		integer
	PCOUNT		integer
	GCOUNT		integer
	WCSAXES	number of axes in World Coordinate System	integer
	CRPIX1	pixel coordinate of reference point in axis1	double
	CRPIX2	pixel coordinate of reference point in axis2	double
	PC1_1	coordinate transformation matrix element	double
	PC1_2	coordinate transformation matrix element	double
	PC2_1	coordinate transformation matrix element	double
	PC2_2	coordinate transformation matrix element	double
	CDELT1	increment at reference point in axis1	double
	CDELT2	increment at reference point in axis2	double
	CUNIT1	unit of the first coordinate value	string
	CUNIT2	unit of the second coordinate value	string
	CTYPE1	WCS type of the first coordinate	string
	CTYPE2	WCS type of the second coordinate	string
	CRVAL1	value at reference point in axis1	double
	CRVAL2	value at reference point in axis2	double
	LONPOLE	native longitude of the pole	double
	LATPOLE	native latitude of the pole	double
	RADESYS	equatorial coordinate system	string
	EQUINOX	equinox of celestial coordinate system	double
	EXTNAME	name of this image extension	string

HDU MASK: 1 array info
	Format	Number of Dimensions	Unit
ArrayInfo	-32	3	NA

HDU MASK: 2 array axes
	Name	Projection Algorithm	Type	Unit
AxesList	RA	TAN	RA	deg
	DEC	TAN	DEC	deg