Clusters Detection Input Product¶
Data product name¶
combclClusters
Data product custodian¶
DET-CL
Data model tag¶
(TBF for ML2A)
Name of the Schema file¶
(TBF for ML2A)
Schema documentation tag¶
(TBF for ML2A)
Data product elements¶
(TBF for ML2A)
Processing Element(s) creating/using the data product¶
DET-CL
Processing function using the data product¶
SGS pipeline output product to be used by SWGs
Detailed description of the data product¶
This data product contains the list and description of the detected clusters. It is the output product combcloutClusters from PF DET-CL.
Keywords¶
This fits file is expected to contain the following keywords in the primary HDU, characterizing the main parameters of the “clusters detection” product.
KEYWORDS COMMON TO BOTH DETECTION CODES: GENERAL PARAMETERS
DET_CODE: Name of the detection algorithm (AMICO or PZWAV) (*)
MIN_Z: lower limit of redshift range for cluster detection
MAX_Z: upper limit of redshift range for cluster detection
SNR_THR: the S/N threshold for extracting a detection
KEYWORDS COMMON TO BOTH DETECTION CODES: COSMOLOGY PARAMETERS
OMEGA_MAT: matter energy density
OMEGA_VAC: vacuum energy density
HUBBLE_PAR: Hubble parameter in 100 Km/s/(Mpc/h)
W_EQ_STATE: dark energy equation of state
N_EFF: effective number of relativistic species
TEMP_CMB: CMB temperature
Currently, a flat LCDM model is assumed, depending only on HUBBLE_PAR and OMEGA_MAT. The list above allows a broader choice for the cosmological model (wCDM).
[*] NOTE: Depending on detection algorithm (AMICO or PZWAV) which produced this data, some additional specific keywords would complete this list (see detclPZWAVClusters and ref:detclAMICOClusters). These specific keywords, though, are in principle not used by COMB-CL.
Table¶
The table of the “combclClusters” product is expected to contain the following columns, for each detected cluster :
CLUSTER_ID: identifier number for the detected cluster
RA: right ascension and declination of the cluster center (degrees)
DEC: declination of the cluster center (degrees)
Z: cluster redshift estimate
Z_ERR:: error associated to the cluster redshift estimate
SNR: signal-to-noise ratio of the detection [*]
RADIUS: radius associated to the detection (arcmin) [*]
RICHNESS: absolute richness parameter (namely a redshift-independent quantity to be eventually used as a mass proxy) (*)
[*]: The SNR, RADIUS, and RICHNESS quantities may have different definitions depending on the considered detection code (keyword DET_CODE). The user should refer to the SDD and scientific documentation of the corresponding code.