SPE PF output catalog product

Data product name

SpePfOutputCatalog

Data product custodian

OU-SPE

Data model tag

Tag 9.0

Name of the Schema file

euc-test-spe-SpePfOutputCatalog.xsd

Schema documentation tag

Documentation for data product element dpdSpePfOutputCatalog:

This product contains the six SPE PF output catalogs :

• The classification catalog

• The redshift catalog

• The PDF catalog

• The spectral line measurements

• The measurements of absorption indices and continuum features

• The spectrum model parameters catalog

Data product elements

Header of type: sys:genericHeader

Data of type: spe:spePfOutputCatalog

Parameters of type: ppr:genericKeyValueParameters

Processing Element(s) creating/using the data product

This product is created by the SPE merge processing element of the SPE PF which merges the outputs of the SPE process spectra and SPE feature measurements processing elements.

Processing function using the data product

LE3 PF is using SPE PF output product.

Detailed description of the data product

The information carried by this product are split in six FITS files:

• The classification catalog

• The redshift catalog

• The PDF catalog

• The spectral line measurements

• The measurements of absorption indices and continuum features

• The spectrum model parameters catalog

They are described in details bellow:

Classification catalog

This part of the product is a FITS file with 1 binary table extension HDU containing the the probability for objects to be a star/galaxy/QSO. Additionnaly, this table contains informations on spectral coverage.

Name of file: EUC_SPE_WIDE-CAT-CLS-[TILE_ID]_[INSTANCE_ID]_[YYYYMMDDThhmmss.s]Z_[VERSION].fits

Structure of file:

Column name	Unit	Format	Description
OBJ_ID		Long Int	Unique ID of the object
SPE_STAR_PROB		Float32	The probability of the object to be a star
SPE_GAL_PROB		Float32	The probability of the object to be a galaxy
SPE_QSO_PROB		Float32	The probability of the object to be a quasar
SPE_CLASS		String[8]	Type in following choice:[STAR, GALAXY, QSO]
SPE_GRISM		String[8]	GRISM used. Type in following choice:[BGS, RGS, BGS+RGS]
N_DITH		Integer	The maximum number of DITHER used
SPE_WRANGE		Float32	The wavelength range
SPE_NPIX		Integer	The number of valid pixels in the wavelength range

Redshift catalog

This part of the product is a FITS file with 3 binary table extension HDUs containing for each spectrum up to 5 redshift candidates for galaxy (HDU#1), 1 relative velocity candidate for star (HDU#2) and up to 5 redshift candidates for QSO (HDU#3).

For galaxy and QSO candidates, the main outputs are spectroscopic redshifts and their associated error, reliability and sub-classification. For star candidates the main outputs are relative velocity and its associated error and sub-classification

Name of file: EUC_SPE_WIDE-CAT-Z-[TILE_ID]_[INSTANCE_ID]_[YYYYMMDDThhmmss.s]Z_[VERSION].fits

Structure of file:

HDU#1-GALAXY_CANDIDATES

Column name	Unit	Format	Description
OBJ_ID		Long Int	Unique ID of the object
SPE_RANK		Integer	Rank of candidate (=1 mean best candidate)
SPE_Z		Float32	Estimated spectroscopic redshift
SPE_Z_ERR		Float32	Error on estimated spectroscopic redshift
SPE_Z_PROB		Float32	Probability of estimated spectroscopic redshift
SPE_Z_REL		Float32	Reliability of estimated spectroscopic redshift
SPE_SUBCLASS		String [48]	Object sub-classification
SPE_PROC_FLAG		Long Int	Processing flag

HDU#2-STAR_CANDIDATES

Column name	Unit	Format	Description
OBJ_ID		Long Int	Unique ID of the object
SPE_RANK		Integer	Rank of candidate (=1 mean best candidate)
SPE_RVEL		Float32	Estimated radial velocity
SPE_RVEL_ERR		Float32	Error on estimated radial velocity
SPE_MODEL_PROB		Float32	Probability of estimated star model
SPE_MODEL_REL		Float32	Reliability of estimated star model
SPE_SUBCLASS		String[48]	Object sub-classification
SPE_PROC_FLAG		Long Int	Processing flag

HDU#3-QSO_CANDIDATES

Column name	Unit	Format	Description
OBJ_ID		Long Int	Unique ID of the object
SPE_RANK		Integer	Rank of candidate (i.e. =1 mean best candidate)
SPE_Z		Float32	Estimated spectroscopic redshift
SPE_Z_ERR		Float32	Error on estimated spectroscopic redshift
SPE_Z_PROB		Float32	Probability of estimated spectroscopic redshift
SPE_Z_REL		Float32	Reliability of estimated spectroscopic redshift
SPE_SUBCLASS		String [48]	Object sub-classification
SPE_PROC_FLAG		Long Int	Processing flag

PDF catalog

This part of the product is a FITS file with 1 binary table extension HDU containing for each spectrum the estimated redshift PDFs (Probability Density Function).

Name of file: EUC_SPE_WIDE-CAT-PDF-[TILE_ID]_[INSTANCE_ID]_[YYYYMMDDThhmmss.s]Z_[VERSION].fits

Structure of file:

HDU#1-SPE_PDF_CAT

Column name	Unit	Format	Description
OBJECT_ID		Long Int	Unique ID of the object
SPE_PDF_CLASS		String [8]	PDF classification
SPE_Z_AXIS		Float32 []	Redshift axis
SPE_PDF		Float32 []	PDF values

Lines catalog

This part of the product is a FITS file with 1 binary table extension HDU containing for each spectrum the spectral line measurements.

Name of file: EUC_SPE_WIDE-CAT-LIN-[TILE_ID]_[INSTANCE_ID]_[YYYYMMDDThhmmss.s]Z_[VERSION].fits

Structure of file:

HDU#1-SPE_LINE_FEATURES_CAT

Column name	Unit	Format	Description
OBJECT_ID		Long Int	Unique ID of the object
SPE_RANK		int	The rank of estimate (i.e. =1 mean best estimate)
SPE_LINE_ID		int	The associated line ID in the reference line catalog
SPE_LINE_FLAG		int	Flag on line measurement
SPE_LINE_NAME		String [12]	The name of the line
SPE_LINE_CENTRAL_WL_GF	AA	float32	The estimated central wavelength of the line from Gaussian fit
SPE_LINE_CENTRAL_WL_ERR_GF	AA	float32	The error on the estimated central wavelength from Gaussian fit
SPE_LINE_FLUX_GF	erg/cm2/s	float32	The estimated flux of the line from Gaussian fit
SPE_LINE_FLUX_ERR_GF	erg/cm2/s	float32	The error on the estimated flux of the line from Gaussian fit
SPE_LINE_EW_GF	AA	float32	The estimated equivalent width of the line from Gaussian fit
SPE_LINE_EW_ERR_GF	AA	float32	The error on estimated equivalent width of the line from Gaussian fit
SPE_LINE_FWHM_GF	AA	float32	The estimated FWHM of the line from Gaussian fit
SPE_LINE_FWHM_ERR_GF	AA	float32	The error on estimated FWHM of the line from Gaussian fit
SPE_LINE_INTVAR_GF	erg2/s2/cm4	float32	The integrated variance within 3-sigma of the line from Gaussian fit
SPE_LINE_SNR_GF		float32	The signal-to-noise ratio of the line from Gaussian fit
SPE_LINE_CONT_GF	erg/cm2/s	float32	The continuum estimated under the line from Gaussian fit
SPE_LINE_LUM_GF	erg/s	float32	The estimated luminosity of the line from Gaussian fit
SPE_LINE_LUM_ERR_GF	erg/s	float32	The error on the estimated luminosity of the line from Gaussian fit
SPE_LINE_QUAL_GF		int	The quality of the measurements from Gaussian fit
SPE_LINE_CENTRAL_WL_DI	AA	float32	The estimated central wavelength of the line from direct integration
SPE_LINE_CENTRAL_WL_ERR_DI	AA	float32	The error on the estimated central wavelength from direct integration
SPE_LINE_FLUX_DI	erg/cm2/s	float32	The estimated flux of the line from direct integration
SPE_LINE_FLUX_ERR_DI	erg/cm2/s	float32	The error on the estimated flux of the line from direct integration
SPE_LINE_EW_DI	AA	float32	The estimated equivalent width of the line from direct integration
SPE_LINE_EW_ERR_DI	AA	float32	The error on estimated equivalent width of the line from direct integration
SPE_LINE_SNR_DI		float32	The signal-to-noise ratio of the line from direct integration
SPE_LINE_CONT_DI	erg/cm2/s	float32	The continuum estimated under the line from direct integration
SPE_LINE_LUM_DI	erg/s	float32	The estimated luminosity of the line from direct integration
SPE_LINE_LUM_ERR_DI	erg/s	float32	The error on the estimated luminosity of the line from direct integration
SPE_LINE_QUAL_DI		int	The quality of the measurements from direct integration

Absorption Index catalog

This part of the product is a FITS file with 3 binary table extension HDUs containing for each spectrum the measurement of absorption Atomic indices (HDU#1), absorption molecular indices (HDU#2) and Continuum features (HDU#3).

Name of file: EUC_SPE_WIDE-CAT-IDX-[TILE_ID]_[INSTANCE_ID]_[YYYYMMDDThhmmss.s]Z_[VERSION].fits

Structure of file:

HDU#1-ATOMIC_INDICES

Column name	Unit	Format	Description
OBJECT_ID		long int	Unique ID of the object
SPE_RANK		int	The rank of estimate (i.e. =1 mean best estimate)
SPE_AT_IDX_NAME		String [12]	The name of the atomic Lick index
SPE_AT_IDX_VAL	Angstrom	float32	The estimated value of the atomic Lick index
SPE_AT_IDX_ERR	Angstrom	float32	The error on the estimated value of the atomic Lick index
SPE_SPEC_SNR		float32	The estimated value of the spectrum SNR in a TBD window

HDU#2-MOLECULAR_INDICES

Column name	Unit	Format	Description
OBJECT_ID		long int	Unique ID of the object
SPE_RANK		int	The rank of estimate (i.e. =1 mean best estimate)
SPE_MOL_IDX_NAME		String [12]	The name of the molecular Lick index
SPE_MOL_IDX_VAL	mag	float32	The estimated value of the molecular Lick index
SPE_MOL_IDX_ERR	mag	float32	The error on the estimated value of the molecular Lick index
SPE_SPEC_SNR		float32	The estimated value of the spectrum SNR in a TBD window

HDU#3-CONTINUUM_FEATURES

Column name	Unit	Format	Description
OBJECT_ID		long int	Unique ID of the object
SPE_RANK		int	The rank of estimate (i.e. =1 mean best estimate)
SPE_CNT_FEAT_NAME		String [12]	The name of the absorption break feature
SPE_CNT_FEAT_VAL		float32	The estimated value of the absorption break feature
SPE_CNT_FEAT_ERR		float32	The error on the estimated value of the absorption break feature
SPE_SPEC_SNR		float32	The estimated value of the spectrum SNR in a TBD window

Models catalog

This part of the product is a FITS file with 3 binary table extension HDUs containing for each spectrum the parameters required for building spectrum model of each galaxy candidates (HDU#1), star candidate (HDU#2) and QSO candidates (HDU#3).

Name of file: EUC_SPE_WIDE-CAT-MOD-[TILE_ID]_[INSTANCE_ID]_[YYYYMMDDThhmmss.s]Z_[VERSION].fits

Structure of file:

HDU#1-GALAXY_MODELS

Column name	Unit	Format	Description
OBJ_ID		Long Int	Unique ID of the object
SPE_RANK		Integer	The rank of estimate (i.e. =1 mean best estimate)
SPE_Z		Float32	Estimated spectroscopic redshift
SPE_CNT_TPL_ID		String [48]	The continuum template ID
SPE_CNT_TPL_AMP		Float32	Amplitude of continuum template
SPE_CNT_IGM_TPL_ID		Integer	IGM template ID
SPE_CNT_ISM_COEF		Float32	Ebmv coefficient (unitless interval[0.,1.]
SPE_TPL_RAT_ID		Integer	Template ratio ID
SPE_TPL_RAT_E_AMP		Float32	Amplitude of emission template ratio
SPE_TPL_RAT_A_AMP		Float32	Amplitude of absorption template ratio
SPE_TPL_RAT_ISM_COEFF		Float32	Ebmv coefficient for emission lines(unitless interval[0.,1.]
SPE_LINES_AMP		Float32 [60]	Amplitude of each line
SPE_VEL_DISP_E		Float32	Velocity dispersion of emission lines
SPE_VEL_DISP_A		Float32	Velocity dispersion of absorption lines
LYA_OFFSET	angstrom	Float32	Lya central wavelength offset
LYA_WIDTH	angstrom	Float32	Lya line width
LYA_ASSYM_COEF		Float32	Alpha coefficient for skewed gaussian Lya model

HDU#2-STAR_MODELS

Column name	Unit	Format	Description
OBJ_ID		Long int	Unique ID of the object
SPE_RANK		Integer	The rank of estimate (i.e. =1 mean best estimate)
SPE_Z		Float32	Estimated spectroscopic redshift
SPE_CNT_TPL_ID		Sting [48]	The continuum template ID
SPE_CNT_TPL_AMP		Float32	Amplitude of continuum template

HDU#3-QSO_MODELS

Column name	Unit	Format	Description
OBJ_ID		Long int	Unique ID of the object
SPE_RANK		Integer	The rank of estimate (i.e. =1 mean best estimate)
SPE_Z		Float32	Estimated spectroscopic redshift
SPE_CNT_TPL_ID		String [48]	The continuum template ID
SPE_CNT_TPL_AMP		Float32	Amplitude of continuum template
SPE_CNT_IGM_TPL_ID		Integer	IGM template ID
SPE_CNT_ISM_COEF		Integer	Ebmv coefficient (unitless interval[0.,1.]
SPE_TPL_RAT_ID		Integer	Template ratio ID
SPE_TPL_RAT_E_AMP		Float32	Amplitude of emission template ratio
SPE_TPL_RAT_A_AMP		Float32	Amplitude of absorption template ratio
SPE_TPL_RAT_ISM_COEFF		Float32	Ebmv coefficient for emission lines(unitless interval[0.,1.]
SPE_LINES_AMP		Float32 [60]	Amplitude of each line
SPE_VEL_DISP_E		Float32	Velocity dispersion of emission lines
SPE_VEL_DISP_A		Float32	Velocity dispersion of absorption lines
LYA_OFFSET	angstrom	Float32	Lya central wavelength offset
LYA_WIDTH	angstrom	Float32	Lya line width
LYA_ASSYM_COEF		Float32	Alpha coefficient for skewed gaussian Lya model