SPT-SZ MCMF: an extension of the SPT-SZ catalogue over the DES region

M. Klein; J. J. Mohr; S. Bocquet; M. Aguena; S. W. Allen; O. Alves; B. Ansarinejad; M. L.N. Ashby; D. Bacon; M. Bayliss; B. A. Benson; L. E. Bleem; M. Brodwin; D. Brooks; E. Bulbul; D. L. Burke; R. E.A. Canning; J. E. Carlstrom; A. C. Rosell; J. Carretero; C. L. Chang; C. Conselice; M. Costanzi; A. T. Crites; L. N. Da Costa; M. E.S. Pereira; T. M. Davis; J. De Vicente; S. Desai; T. De Haan; M. A. Dobbs; P. Doel; I. Ferrero; A. M. Flores; J. Frieman; E. M. George; G. Giannini; M. D. Gladders; A. H. Gonzalez; S. Grandis; D. Gruen; R. A. Gruendl; G. Gutierrez; N. W. Halverson; S. R. Hinton; G. P. Holder; D. L. Hollowood; W. L. Holzapfel; K. Honscheid; J. D. Hrubes; N. Huang; D. J. James; G. Khullar; K. Kim; L. Knox; R. Kraft; F. Kéruzoré; A. T. Lee; D. Luong-Van; G. Mahler; A. Mantz; D. P. Marrone; J. L. Marshall; M. McDonald; J. J. McMahon; J. Mena-Fernández; F. Menanteau; S. S. Meyer; R. Miquel; J. Myles; S. Padin; A. Pieres; A. A. Plazas Malagón; C. Pryke; C. L. Reichardt; K. Reil; J. Roberson; A. K. Romer; C. Romero; J. E. Ruhl; B. R. Saliwanchik; L. Salvati; E. Sanchez; A. Saro; K. K. Schaffer; T. Schrabback; M. Schubnell; I. Sevilla-Noarbe; K. Sharon; E. Shirokoff; M. Smith; T. Somboonpanyakul; B. Stalder; S. A. Stanford; A. A. Stark; V. Strazzullo; E. Suchyta; M. E.C. Swanson; G. Tarle; C. To; K. Vanderlinde; J. D. Vieira; A. Von Der Linden; N. Weaverdyck; R. Williamson; P. Wiseman; M. Young

doi:10.1093/mnras/stae1359

SPT-SZ MCMF: an extension of the SPT-SZ catalogue over the DES region

M. Klein, J. J. Mohr, S. Bocquet, M. Aguena, S. W. Allen, O. Alves, B. Ansarinejad, M. L.N. Ashby, D. Bacon, M. Bayliss, B. A. Benson, L. E. Bleem, M. Brodwin, D. Brooks, E. Bulbul, D. L. Burke, R. E.A. Canning, J. E. Carlstrom, A. C. Rosell, J. CarreteroC. L. Chang, C. Conselice, M. Costanzi, A. T. Crites, L. N. Da Costa, M. E.S. Pereira, T. M. Davis, J. De Vicente, S. Desai, T. De Haan, M. A. Dobbs, P. Doel, I. Ferrero, A. M. Flores, J. Frieman, E. M. George, G. Giannini, M. D. Gladders, A. H. Gonzalez, S. Grandis, D. Gruen, R. A. Gruendl, G. Gutierrez, N. W. Halverson, S. R. Hinton, G. P. Holder, D. L. Hollowood, W. L. Holzapfel, K. Honscheid, J. D. Hrubes, N. Huang, D. J. James, G. Khullar, K. Kim, L. Knox, R. Kraft, F. Kéruzoré, A. T. Lee, D. Luong-Van, G. Mahler, A. Mantz, D. P. Marrone, J. L. Marshall, M. McDonald, J. J. McMahon, J. Mena-Fernández, F. Menanteau, S. S. Meyer, R. Miquel, J. Myles, S. Padin, A. Pieres, A. A. Plazas Malagón, C. Pryke, C. L. Reichardt, K. Reil, J. Roberson, A. K. Romer, C. Romero, J. E. Ruhl, B. R. Saliwanchik, L. Salvati, E. Sanchez, A. Saro, K. K. Schaffer, T. Schrabback, M. Schubnell, I. Sevilla-Noarbe, K. Sharon, E. Shirokoff, M. Smith, T. Somboonpanyakul, B. Stalder, S. A. Stanford, A. A. Stark, V. Strazzullo, E. Suchyta, M. E.C. Swanson, G. Tarle, C. To, K. Vanderlinde, J. D. Vieira, A. Von Der Linden, N. Weaverdyck, R. Williamson, P. Wiseman, M. Young

Workflow Systems

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

We present an extension to a Sunyaev-Zel'dovich Effect (SZE) selected cluster catalogue based on observations from the South Pole Telescope (SPT); this catalogue extends to lower signal to noise than the previous SPT-SZ catalogue and therefore includes lower mass clusters. Optically derived redshifts, centres, richnesses, and morphological parameters together with catalogue contamination and completeness statistics are extracted using the multicomponent matched filter (MCMF) algorithm applied to the S/N > 4 SPT-SZ candidate list and the Dark Energy Survey (DES) photometric galaxy catalogue. The main catalogue contains 811 sources above S/N = 4, has 91 per cent purity, and is 95 per cent complete with respect to the original SZE selection. It contains in total 50 per cent more clusters and twice as many clusters above z = 0.8 in comparison to the original SPT-SZ sample. The MCMF algorithm allows us to define subsamples of the desired purity with traceable impact on catalogue completeness. As an example, we provide two subsamples with S/N > 4.25 and S/N > 4.5 for which the sample contamination and cleaning-induced incompleteness are both as low as the expected Poisson noise for samples of their size. The subsample with S/N > 4.5 has 98 per cent purity and 96 per cent completeness and is part of our new combined SPT cluster and DES weak-lensing cosmological analysis. We measure the number of false detections in the SPT-SZ candidate list as function of S/N, finding that it follows that expected from assuming Gaussian noise, but with a lower amplitude compared to previous estimates from simulations.

Original language	English
Pages (from-to)	3973-3990
Number of pages	18
Journal	Monthly Notices of the Royal Astronomical Society
Volume	531
Issue number	4
DOIs	https://doi.org/10.1093/mnras/stae1359
State	Published - Jul 1 2024

Funding

Funding for the DES Projects has been provided by the U.S. Department of Energy, the U.S. National Science Foundation, the Ministry of Science and Education of Spain, the Science and Technology Facilities Council of the United Kingdom, the Higher Education Funding Council for England, the National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign, the Kavli Institute of Cosmological Physics at the University of Chicago, the Center for Cosmology and Astro-Particle Physics at the Ohio State University, the Mitchell Institute for Fundamental Physics and Astronomy at Texas A&M University, Financiadora de Estudos e Projetos, Funda\u00E7\u00E3o Carlos Chagas Filho de Amparo \u00E0 Pesquisa do Estado do Rio de Janeiro, Conselho Nacional de Desenvolvimento Cient\u00EDfico e Tecnol\u00F3gico and the Minist\u00E9rio da Ci\u00EAncia, Tecnologia e Inova\u00E7\u00E3o, the Deutsche Forschungsgemeinschaft and the Collaborating Institutions in the Dark Energy Survey. The Collaborating Institutions are Argonne National Laboratory, the University of California at Santa Cruz, the University of Cambridge, Centro de Investigaciones Energ\u00E9ticas, Medioambientales y Tecnol\u00F3gicas-Madrid, the University of Chicago, University College London, the DES-Brazil Consortium, the University of Edinburgh, the Eidgen\u00F6ssische Technische Hochschule (ETH) Z\u00FCrich, Fermi National Accelerator Laboratory, the University of Illinois at Urbana-Champaign, the Institut de Ci\u00E8ncies de l\u2019Espai (IEEC/CSIC), the Institut de F\u00EDsica d\u2019Altes Energies, Lawrence Berkeley National Laboratory, the Ludwig-Maximilians Universit\u00E4t M\u00FCnchen and the associated Excellence Cluster Origins, the University of Michigan, the National Optical Astronomy Observatory, the University of Nottingham, The Ohio State University, the University of Pennsylvania, the University of Portsmouth, SLAC National Accelerator Laboratory, Stanford University, the University of Sussex, Texas A&M University, and the OzDES Membership Consortium. The DES data management system is supported by the National Science Foundation under grant number AST-1138766. The DES participants from Spanish institutions are partially supported by MINECO under grants AYA2012-39559, ESP2013-48274, FPA2013-47986, and Centro de Excelencia Severo Ochoa SEV-2012-0234. Research leading to these results has received funding from the European Research Council under the European Union\u2019s Seventh Framework Programme (FP7/2007-2013) including ERC grant agreements 240672, 291329, and 306478. We acknowledge the support of the Max Planck Society Faculty Fellowship program at MPE, the support of the DFG (German Re- search Foundation) Cluster of Excellence 'Origin and Structure of the Universe' -EXC-2094-390783311, and the Ludwig-Maximilians- Universit\u00E4t in Munich. Funding for the DES Projects has been provided by the U.S. Department of Energy, the U.S. National Science Foundation, the Ministry of Science and Education of Spain, the Science and Technol- ogy Facilities Council of the United Kingdom, the Higher Education Funding Council for England, the National Center for Supercomput- ing Applications at the University of Illinois at Urbana-Champaign, the Kavli Institute of Cosmological Physics at the University of Chicago, the Center for Cosmology and Astro-Particle Physics at the Ohio State University, the Mitchell Institute for Fundamental Physics and Astronomy at Te xas A&M Univ ersity, Financiadora de Estudos e Projetos, Fundacao Carlos Chagas Filho de Amparoa Pesquisa do Estado do Rio de Janeiro, Conselho Nacional de Desenvolvimento Cientifico e Tecnologico and the Ministerio da Ciencia, Tecnologia e Inovacao, the Deutsche Forschungsgemeinschaft and the Collab- orating Institutions in the Dark Energy Surv e y. The Collaborating Institutions are Argonne National Laboratory, the University of Cal- ifornia at Santa Cruz, the University of Cambridge, Centro de Inves- tigaciones Energeticas, Medioambientales y Tecnologicas-Madrid, the University of Chicago, University College London, the DES- Brazil Consortium, the University of Edinburgh, the Eidgenossische Technische Hochschule (ETH) Z\u00FCrich, Fermi National Accelera- tor Laboratory, the University of Illinois at Urbana-Champaign, the Institut de Ciencies de l'Espai (IEEC/CSIC), the Institut deF \u00EDsica d'Altes Energies, La wrence Berkele y National Laboratory, the Ludwig-Maximilians Universit\u00E4t M\u00FCnchen and the associated Excellence Cluster Origins, the University of Michigan, the National Optical Astronomy Observatory, the University of Nottingham, The Ohio State University, the University of Pennsylvania, the University of Portsmouth, SLAC National Accelerator Laboratory, Stanford Uni versity, the Uni versity of Sussex, Texas A&M University, and the OzDES Membership Consortium. The DES data management system is supported by the National Science Foundation under grant number AST-1138766. The DES participants from Spanish institu- tions are partially supported by MINECO under grants AYA2012- 39559, ESP2013-48274, FPA2013-47986, and Centro de Excelencia Severo Ochoa SEV-2012-0234. Research leading to these results has received funding from the European Research Council under the European Union's Seventh Framework Programme (FP7/2007-2013) including ERC grant agreements 240672, 291329, and 306478. The SPT programme is supported by the National Science Foun- dation (NSF) through the grant no. OPP-1852617. Partial support is also provided by the Kavli Institute of Cosmological Physics at the University of Chicago. Argonne National Laboratory's work was supported by the U.S. Department of Energy, Office of High Energy Physics, under Contract No. DE-AC02-06CH11357. Work at Fermi National Accelerator Laboratory, a DOE-OS, HEP User Facility managed by the Fermi Research Alliance, LLC, was supported under Contract No. DE-AC02-07CH11359. MC, LS, AS, and VS are supported by the ERC-StG 'Cluster- sXCosmo' grant agreement 716762. AS is further supported by the FARE-MIUR grant'ClustersXEuclid' R165SBKTMA, by INFN InDark Grant, and by the ICSC National Reco v ery and Resilience Plan (PNRR) Project ID CN00000013 'Italian Research Center on High-Performance Computing, Big Data and Quantum Computing' funded by MUR Missione 4 Componente 2 Investimento 1.4 -Next Generation EU (NGEU). MC, LS, AS, and VS are supported by the ERC-StG \u2018ClustersXCosmo\u2019 grant agreement 716762. AS is further supported by the FARE-MIUR grant\u2019ClustersXEuclid\u2019 R165SBKTMA, by INFN InDark Grant, and by the ICSC National Recovery and Resilience Plan (PNRR) Project ID CN00000013 \u2018Italian Research Center on High-Performance Computing, Big Data and Quantum Computing\u2019 funded by MUR Missione 4 Componente 2 Investimento 1.4 \u2013 Next Generation EU (NGEU). The SPT programme is supported by the National Science Foundation (NSF) through the grant no. OPP-1852617. Partial support is also provided by the Kavli Institute of Cosmological Physics at the University of Chicago. Argonne National Laboratory\u2019s work was supported by the U.S. Department of Energy, Office of High Energy Physics, under Contract No. DE-AC02-06CH11357. Work at Fermi National Accelerator Laboratory, a DOE-OS, HEP User Facility managed by the Fermi Research Alliance, LLC, was supported under Contract No. DE-AC02-07CH11359. We acknowledge the support of the Max Planck Society Faculty Fellowship program at MPE, the support of the DFG (German Research Foundation) Cluster of Excellence \u2018Origin and Structure of the Universe\u2019 \u2013 EXC-2094-390783311, and the Ludwig-Maximilians-Universit\u00E4t in Munich.

Funders	Funder number
Mitchell Institute for Fundamental Physics and Astronomy at Texas A&M University
University of Illinois at Urbana-Champaign
University of Nottingham
University of Edinburgh
FARE-MIUR
Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro
Seventh Framework Programme
ICSC National Recovery and Resilience Plan
Ohio State University
European Union's Seventh Framework Programme
Stanford University
University of Chicago
DOE-OS
Higher Education Funding Council for England
Financiadora de Estudos e Projetos
National Center for Supercomput
Max-Planck-Gesellschaft
Ministry of Education and Science of Ukraine
Eidgenössische Technische Hochschule Zürich
Conselho Nacional de Desenvolvimento Científico e Tecnológico
ICSC National Reco v ery and Resilience Plan
INFN InDark
Deutsche Forschungsgemeinschaft
SLAC National Accelerator Laboratory
Uni versity of Sussex, Texas A&M University
Institut deF ísica d'Altes Energies
U.S. Department of Energy
Fermilab
University of Cal
German Re- search Foundation) Cluster of Excellence 'Origin and Structure of the Universe
Collaborating Institutions are Argonne National Laboratory
University College London
Mitchell Institute for Fundamental Physics and Astronomy at Te xas A&M Univ ersity
University of Portsmouth
Science and Technology Facilities Council of the United Kingdom
Ministério da Ciência, Tecnologia e Inovação
Science and Technol- ogy Facilities Council of the United Kingdom
National Science Foun- dation
National Centre for Supercomputing Applications
University of Michigan
Fermi National Accelera- tor Laboratory
La wrence Berkele y National Laboratory
University of Pennsylvania
Collaborating Institutions in the Dark Energy Survey
Ludwig-Maximilians-Universität München
Ludwig-Maximilians- Universität in Munich
Institut de Ciencies de l'Espai
European Research Council	240672, 306478, 291329
High Energy Physics	DE-AC02-06CH11357
National Science Foundation	AST-1138766, OPP-1852617
Fermi Research Alliance	DE-AC02-07CH11359
Centro de Excelencia Severo Ochoa	SEV-2012-0234
German Research Foundation) Cluster of Excellence ‘Origin and Structure of the Universe	EXC-2094-390783311
Ministerio de Economía y Competitividad	FPA2013-47986, AYA2012-39559, ESP2013-48274
ERC-StG	716762
PNRR	CN00000013

Keywords

galaxies: clusters: general
galaxies: clusters: intracluster medium
galaxies: distances and redshifts

Access to Document

10.1093/mnras/stae1359

Cite this

Klein, M., Mohr, J. J., Bocquet, S., Aguena, M., Allen, S. W., Alves, O., Ansarinejad, B., Ashby, M. L. N., Bacon, D., Bayliss, M., Benson, B. A., Bleem, L. E., Brodwin, M., Brooks, D., Bulbul, E., Burke, D. L., Canning, R. E. A., Carlstrom, J. E., Rosell, A. C., ... Young, M. (2024). SPT-SZ MCMF: an extension of the SPT-SZ catalogue over the DES region. Monthly Notices of the Royal Astronomical Society, 531(4), 3973-3990. https://doi.org/10.1093/mnras/stae1359

@article{2a52d1b2ce3848419d4f4e1b995c4d2c,

title = "SPT-SZ MCMF: an extension of the SPT-SZ catalogue over the DES region",

abstract = "We present an extension to a Sunyaev-Zel'dovich Effect (SZE) selected cluster catalogue based on observations from the South Pole Telescope (SPT); this catalogue extends to lower signal to noise than the previous SPT-SZ catalogue and therefore includes lower mass clusters. Optically derived redshifts, centres, richnesses, and morphological parameters together with catalogue contamination and completeness statistics are extracted using the multicomponent matched filter (MCMF) algorithm applied to the S/N > 4 SPT-SZ candidate list and the Dark Energy Survey (DES) photometric galaxy catalogue. The main catalogue contains 811 sources above S/N = 4, has 91 per cent purity, and is 95 per cent complete with respect to the original SZE selection. It contains in total 50 per cent more clusters and twice as many clusters above z = 0.8 in comparison to the original SPT-SZ sample. The MCMF algorithm allows us to define subsamples of the desired purity with traceable impact on catalogue completeness. As an example, we provide two subsamples with S/N > 4.25 and S/N > 4.5 for which the sample contamination and cleaning-induced incompleteness are both as low as the expected Poisson noise for samples of their size. The subsample with S/N > 4.5 has 98 per cent purity and 96 per cent completeness and is part of our new combined SPT cluster and DES weak-lensing cosmological analysis. We measure the number of false detections in the SPT-SZ candidate list as function of S/N, finding that it follows that expected from assuming Gaussian noise, but with a lower amplitude compared to previous estimates from simulations.",

keywords = "galaxies: clusters: general, galaxies: clusters: intracluster medium, galaxies: distances and redshifts",

author = "M. Klein and Mohr, {J. J.} and S. Bocquet and M. Aguena and Allen, {S. W.} and O. Alves and B. Ansarinejad and Ashby, {M. L.N.} and D. Bacon and M. Bayliss and Benson, {B. A.} and Bleem, {L. E.} and M. Brodwin and D. Brooks and E. Bulbul and Burke, {D. L.} and Canning, {R. E.A.} and Carlstrom, {J. E.} and Rosell, {A. C.} and J. Carretero and Chang, {C. L.} and C. Conselice and M. Costanzi and Crites, {A. T.} and {Da Costa}, {L. N.} and Pereira, {M. E.S.} and Davis, {T. M.} and {De Vicente}, J. and S. Desai and {De Haan}, T. and Dobbs, {M. A.} and P. Doel and I. Ferrero and Flores, {A. M.} and J. Frieman and George, {E. M.} and G. Giannini and Gladders, {M. D.} and Gonzalez, {A. H.} and S. Grandis and D. Gruen and Gruendl, {R. A.} and G. Gutierrez and Halverson, {N. W.} and Hinton, {S. R.} and Holder, {G. P.} and Hollowood, {D. L.} and Holzapfel, {W. L.} and K. Honscheid and Hrubes, {J. D.} and N. Huang and James, {D. J.} and G. Khullar and K. Kim and L. Knox and R. Kraft and F. K{\'e}ruzor{\'e} and Lee, {A. T.} and D. Luong-Van and G. Mahler and A. Mantz and Marrone, {D. P.} and Marshall, {J. L.} and M. McDonald and McMahon, {J. J.} and J. Mena-Fern{\'a}ndez and F. Menanteau and Meyer, {S. S.} and R. Miquel and J. Myles and S. Padin and A. Pieres and {Plazas Malag{\'o}n}, {A. A.} and C. Pryke and Reichardt, {C. L.} and K. Reil and J. Roberson and Romer, {A. K.} and C. Romero and Ruhl, {J. E.} and Saliwanchik, {B. R.} and L. Salvati and E. Sanchez and A. Saro and Schaffer, {K. K.} and T. Schrabback and M. Schubnell and I. Sevilla-Noarbe and K. Sharon and E. Shirokoff and M. Smith and T. Somboonpanyakul and B. Stalder and Stanford, {S. A.} and Stark, {A. A.} and V. Strazzullo and E. Suchyta and Swanson, {M. E.C.} and G. Tarle and C. To and K. Vanderlinde and Vieira, {J. D.} and {Von Der Linden}, A. and N. Weaverdyck and R. Williamson and P. Wiseman and M. Young",

note = "Publisher Copyright: {\textcopyright} 2024 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.",

year = "2024",

month = jul,

day = "1",

doi = "10.1093/mnras/stae1359",

language = "English",

volume = "531",

pages = "3973--3990",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

number = "4",

}

Klein, M, Mohr, JJ, Bocquet, S, Aguena, M, Allen, SW, Alves, O, Ansarinejad, B, Ashby, MLN, Bacon, D, Bayliss, M, Benson, BA, Bleem, LE, Brodwin, M, Brooks, D, Bulbul, E, Burke, DL, Canning, REA, Carlstrom, JE, Rosell, AC, Carretero, J, Chang, CL, Conselice, C, Costanzi, M, Crites, AT, Da Costa, LN, Pereira, MES, Davis, TM, De Vicente, J, Desai, S, De Haan, T, Dobbs, MA, Doel, P, Ferrero, I, Flores, AM, Frieman, J, George, EM, Giannini, G, Gladders, MD, Gonzalez, AH, Grandis, S, Gruen, D, Gruendl, RA, Gutierrez, G, Halverson, NW, Hinton, SR, Holder, GP, Hollowood, DL, Holzapfel, WL, Honscheid, K, Hrubes, JD, Huang, N, James, DJ, Khullar, G, Kim, K, Knox, L, Kraft, R, Kéruzoré, F, Lee, AT, Luong-Van, D, Mahler, G, Mantz, A, Marrone, DP, Marshall, JL, McDonald, M, McMahon, JJ, Mena-Fernández, J, Menanteau, F, Meyer, SS, Miquel, R, Myles, J, Padin, S, Pieres, A, Plazas Malagón, AA, Pryke, C, Reichardt, CL, Reil, K, Roberson, J, Romer, AK, Romero, C, Ruhl, JE, Saliwanchik, BR, Salvati, L, Sanchez, E, Saro, A, Schaffer, KK, Schrabback, T, Schubnell, M, Sevilla-Noarbe, I, Sharon, K, Shirokoff, E, Smith, M, Somboonpanyakul, T, Stalder, B, Stanford, SA, Stark, AA, Strazzullo, V, Suchyta, E, Swanson, MEC, Tarle, G, To, C, Vanderlinde, K, Vieira, JD, Von Der Linden, A, Weaverdyck, N, Williamson, R, Wiseman, P & Young, M 2024, 'SPT-SZ MCMF: an extension of the SPT-SZ catalogue over the DES region', Monthly Notices of the Royal Astronomical Society, vol. 531, no. 4, pp. 3973-3990. https://doi.org/10.1093/mnras/stae1359

TY - JOUR

T1 - SPT-SZ MCMF

T2 - an extension of the SPT-SZ catalogue over the DES region

AU - Klein, M.

AU - Mohr, J. J.

AU - Bocquet, S.

AU - Aguena, M.

AU - Allen, S. W.

AU - Alves, O.

AU - Ansarinejad, B.

AU - Ashby, M. L.N.

AU - Bacon, D.

AU - Bayliss, M.

AU - Benson, B. A.

AU - Bleem, L. E.

AU - Brodwin, M.

AU - Brooks, D.

AU - Bulbul, E.

AU - Burke, D. L.

AU - Canning, R. E.A.

AU - Carlstrom, J. E.

AU - Rosell, A. C.

AU - Carretero, J.

AU - Chang, C. L.

AU - Conselice, C.

AU - Costanzi, M.

AU - Crites, A. T.

AU - Da Costa, L. N.

AU - Pereira, M. E.S.

AU - Davis, T. M.

AU - De Vicente, J.

AU - Desai, S.

AU - De Haan, T.

AU - Dobbs, M. A.

AU - Doel, P.

AU - Ferrero, I.

AU - Flores, A. M.

AU - Frieman, J.

AU - George, E. M.

AU - Giannini, G.

AU - Gladders, M. D.

AU - Gonzalez, A. H.

AU - Grandis, S.

AU - Gruen, D.

AU - Gruendl, R. A.

AU - Gutierrez, G.

AU - Halverson, N. W.

AU - Hinton, S. R.

AU - Holder, G. P.

AU - Hollowood, D. L.

AU - Holzapfel, W. L.

AU - Honscheid, K.

AU - Hrubes, J. D.

AU - Huang, N.

AU - James, D. J.

AU - Khullar, G.

AU - Kim, K.

AU - Knox, L.

AU - Kraft, R.

AU - Kéruzoré, F.

AU - Lee, A. T.

AU - Luong-Van, D.

AU - Mahler, G.

AU - Mantz, A.

AU - Marrone, D. P.

AU - Marshall, J. L.

AU - McDonald, M.

AU - McMahon, J. J.

AU - Mena-Fernández, J.

AU - Menanteau, F.

AU - Meyer, S. S.

AU - Miquel, R.

AU - Myles, J.

AU - Padin, S.

AU - Pieres, A.

AU - Plazas Malagón, A. A.

AU - Pryke, C.

AU - Reichardt, C. L.

AU - Reil, K.

AU - Roberson, J.

AU - Romer, A. K.

AU - Romero, C.

AU - Ruhl, J. E.

AU - Saliwanchik, B. R.

AU - Salvati, L.

AU - Sanchez, E.

AU - Saro, A.

AU - Schaffer, K. K.

AU - Schrabback, T.

AU - Schubnell, M.

AU - Sevilla-Noarbe, I.

AU - Sharon, K.

AU - Shirokoff, E.

AU - Smith, M.

AU - Somboonpanyakul, T.

AU - Stalder, B.

AU - Stanford, S. A.

AU - Stark, A. A.

AU - Strazzullo, V.

AU - Suchyta, E.

AU - Swanson, M. E.C.

AU - Tarle, G.

AU - To, C.

AU - Vanderlinde, K.

AU - Vieira, J. D.

AU - Von Der Linden, A.

AU - Weaverdyck, N.

AU - Williamson, R.

AU - Wiseman, P.

AU - Young, M.

PY - 2024/7/1

Y1 - 2024/7/1

N2 - We present an extension to a Sunyaev-Zel'dovich Effect (SZE) selected cluster catalogue based on observations from the South Pole Telescope (SPT); this catalogue extends to lower signal to noise than the previous SPT-SZ catalogue and therefore includes lower mass clusters. Optically derived redshifts, centres, richnesses, and morphological parameters together with catalogue contamination and completeness statistics are extracted using the multicomponent matched filter (MCMF) algorithm applied to the S/N > 4 SPT-SZ candidate list and the Dark Energy Survey (DES) photometric galaxy catalogue. The main catalogue contains 811 sources above S/N = 4, has 91 per cent purity, and is 95 per cent complete with respect to the original SZE selection. It contains in total 50 per cent more clusters and twice as many clusters above z = 0.8 in comparison to the original SPT-SZ sample. The MCMF algorithm allows us to define subsamples of the desired purity with traceable impact on catalogue completeness. As an example, we provide two subsamples with S/N > 4.25 and S/N > 4.5 for which the sample contamination and cleaning-induced incompleteness are both as low as the expected Poisson noise for samples of their size. The subsample with S/N > 4.5 has 98 per cent purity and 96 per cent completeness and is part of our new combined SPT cluster and DES weak-lensing cosmological analysis. We measure the number of false detections in the SPT-SZ candidate list as function of S/N, finding that it follows that expected from assuming Gaussian noise, but with a lower amplitude compared to previous estimates from simulations.

AB - We present an extension to a Sunyaev-Zel'dovich Effect (SZE) selected cluster catalogue based on observations from the South Pole Telescope (SPT); this catalogue extends to lower signal to noise than the previous SPT-SZ catalogue and therefore includes lower mass clusters. Optically derived redshifts, centres, richnesses, and morphological parameters together with catalogue contamination and completeness statistics are extracted using the multicomponent matched filter (MCMF) algorithm applied to the S/N > 4 SPT-SZ candidate list and the Dark Energy Survey (DES) photometric galaxy catalogue. The main catalogue contains 811 sources above S/N = 4, has 91 per cent purity, and is 95 per cent complete with respect to the original SZE selection. It contains in total 50 per cent more clusters and twice as many clusters above z = 0.8 in comparison to the original SPT-SZ sample. The MCMF algorithm allows us to define subsamples of the desired purity with traceable impact on catalogue completeness. As an example, we provide two subsamples with S/N > 4.25 and S/N > 4.5 for which the sample contamination and cleaning-induced incompleteness are both as low as the expected Poisson noise for samples of their size. The subsample with S/N > 4.5 has 98 per cent purity and 96 per cent completeness and is part of our new combined SPT cluster and DES weak-lensing cosmological analysis. We measure the number of false detections in the SPT-SZ candidate list as function of S/N, finding that it follows that expected from assuming Gaussian noise, but with a lower amplitude compared to previous estimates from simulations.

KW - galaxies: clusters: general

KW - galaxies: clusters: intracluster medium

KW - galaxies: distances and redshifts

UR - http://www.scopus.com/inward/record.url?scp=85196629179&partnerID=8YFLogxK

U2 - 10.1093/mnras/stae1359

DO - 10.1093/mnras/stae1359

M3 - Article

AN - SCOPUS:85196629179

SN - 0035-8711

VL - 531

SP - 3973

EP - 3990

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 4

ER -

SPT-SZ MCMF: an extension of the SPT-SZ catalogue over the DES region

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Cite this