Euclid preparation: XCI. Validation method for the detections in the Euclid Catalogue of Galaxy Clusters using external data

@article{melin2026euclid,
  title = {{Euclid preparation: XCI. Validation method for the detections in the Euclid Catalogue of Galaxy Clusters using external data}},
  author = {J.-B. Melin and S. Stanford and A. Widmer and P. Tarrío and J. Bartlett and T. Sadibekova and G. Pratt and M. Arnaud and F. Pacaud and T. Reiprich and A. Biviano and S. Bardelli and S. Borgani and P.-S. Corasaniti and S. Ettori and A. Finoguenov and Z. Ghaffari and P. Giles and M. Girardi and J. Golden-Marx and A. Gonzalez and M. Klein and G. Lesci and M. Maturi and B. Maughan and L. Moscardini and M. Pierre and M. Radovich and P. Rosati and J. Sorce and E. Tsaprazi and B. Altieri and A. Amara and S. Andreon and N. Auricchio and C. Baccigalupi and M. Baldi and E. Branchini and M. Brescia and S. Camera and G. Cañas-Herrera and V. Capobianco and C. Carbone and J. Carretero and M. Castellano and G. Castignani and S. Cavuoti and K. Chambers and A. Cimatti and C. Colodro-Conde and G. Congedo and C. Conselice and L. Conversi and Y. Copin and F. Courbin and H. Courtois and A. Da Silva and H. Degaudenzi and G. de Lucia and H. Dole},
  journal = {Astronomy \& Astrophysics - A\&A},
  year = {2026},
  month = aug,
  doi = {10.1051/0004-6361/202557143},
  url = {https://hal.science/hal-05840566v1},
  note = {CC BY 4.0},
}

TY  - JOUR
TI  - Euclid preparation: XCI. Validation method for the detections in the Euclid Catalogue of Galaxy Clusters using external data
AU  - J.-B. Melin
AU  - S. Stanford
AU  - A. Widmer
AU  - P. Tarrío
AU  - J. Bartlett
AU  - T. Sadibekova
AU  - G. Pratt
AU  - M. Arnaud
AU  - F. Pacaud
AU  - T. Reiprich
AU  - A. Biviano
AU  - S. Bardelli
AU  - S. Borgani
AU  - P.-S. Corasaniti
AU  - S. Ettori
AU  - A. Finoguenov
AU  - Z. Ghaffari
AU  - P. Giles
AU  - M. Girardi
AU  - J. Golden-Marx
AU  - A. Gonzalez
AU  - M. Klein
AU  - G. Lesci
AU  - M. Maturi
AU  - B. Maughan
AU  - L. Moscardini
AU  - M. Pierre
AU  - M. Radovich
AU  - P. Rosati
AU  - J. Sorce
AU  - E. Tsaprazi
AU  - B. Altieri
AU  - A. Amara
AU  - S. Andreon
AU  - N. Auricchio
AU  - C. Baccigalupi
AU  - M. Baldi
AU  - E. Branchini
AU  - M. Brescia
AU  - S. Camera
AU  - G. Cañas-Herrera
AU  - V. Capobianco
AU  - C. Carbone
AU  - J. Carretero
AU  - M. Castellano
AU  - G. Castignani
AU  - S. Cavuoti
AU  - K. Chambers
AU  - A. Cimatti
AU  - C. Colodro-Conde
AU  - G. Congedo
AU  - C. Conselice
AU  - L. Conversi
AU  - Y. Copin
AU  - F. Courbin
AU  - H. Courtois
AU  - A. Da Silva
AU  - H. Degaudenzi
AU  - G. de Lucia
AU  - H. Dole
PY  - 2026
DA  - 2026/08/14
JO  - Astronomy & Astrophysics - A&A
DO  - 10.1051/0004-6361/202557143
UR  - https://hal.science/hal-05840566v1
AB  - We present our methodology for identifying known clusters as counterparts to objects in the Euclid Catalogue of Galaxy Clusters (ECGC). Euclid is expected to detect a large number of optically selected galaxy clusters over the approximately 14 000 square degrees of its extragalactic sky survey. Extending out well beyond redshift unity, the catalogue will contain many new high-redshift clusters, while at lower redshifts a fraction of the clusters will have been observed in other surveys. Identifying these known clusters as counterparts to the Euclid -detected clusters is an important step in the validation and construction of the ECGC to augment information with external observables. We present a set of catalogues and meta-catalogues of known clusters that we have assembled for this step, and we illustrate their application and our methodology using the Dark Energy Survey Year 1 RedMaPPer cluster catalogue in lieu of the future ECGC. In the process of this work, we have constructed and delivered an updated EC-RedMaPPer catalogue with multi-wavelength counterparts.
SN  - 0004-6361
SN  - 1432-0746
ER  -