Exploring the contamination of the DES-Y1 Cluster Sample with SPT-SZ selected clusters
We perform a cross validation of the cluster catalog selected by the red-sequence Matched-filter Probabilistic Percolation algorithm (redMaPPer) in Dark Energy Survey year 1 (DES-Y1) data by matching it with the Sunyaev-Zel'dovich effect (SZE) selected cluster catalog from the South Pole Telesc...
Published in: | Monthly Notices of the Royal Astronomical Society |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2021
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Online Access: | http://hdl.handle.net/11368/2988336 https://doi.org/10.1093/mnras/stab869 https://academic.oup.com/mnras/article/504/1/1253/6188380 |
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Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste) |
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English |
topic |
large-scale structure of Universe methods: statistical galaxies: clusters: general Astrophysics - Cosmology and Nongalactic Astrophysics |
spellingShingle |
large-scale structure of Universe methods: statistical galaxies: clusters: general Astrophysics - Cosmology and Nongalactic Astrophysics Grandis, S. Mohr, J. J. Costanzi, M. Saro, A. Bocquet, S. Klein, M. Aguena, M. Allam, S. Annis, J. Ansarinejad, B. Bacon, D. Bertin, E. Bleem, L. Brooks, D. Burke, D. L. Carnero Rosel, A. Carrasco Kind, M. Carretero, J. Castander, F. J. Choi, A. da Costa, L. N. De Vincente, J. Desai, S. Diehl, H. T. Dietrich, J. P. Doel, P. Eifler, T. F. Everett, S. Ferrero, I. Floyd, B. Fosalba, P. Frieman, J. García-Bellido, J. Gaztanaga, E. Gruen, D. Gruendl, R. A. Gschwend, J. Gupta, N. Gutierrez, G. Hinton, S. R. Hollowood, D. L. Honscheid, K. James, D. J. Jeltema, T. Kuehn, K. Lahav, O. Lidman, C. Lima, M. Maia, M. A. G. March, M. Marshall, J. L. Melchior, P. Menanteau, F. Miquel, R. Morgan, R. Myles, J. Ogando, R. Palmese, A. Paz-Chinchón, F. Plazas, A. A. Reichardt, C. L. Romer, A. K. Sanchez, E. Scarpine, V. Serrano, S. Sevilla-Noarbe, I. Singh, P. Smith, M. Suchyta, E. Swanson, M. E. C. Tarle, G. Thomas, D. To, C. Weller, J. Wilkinson, R. D. Wu, H. Exploring the contamination of the DES-Y1 Cluster Sample with SPT-SZ selected clusters |
topic_facet |
large-scale structure of Universe methods: statistical galaxies: clusters: general Astrophysics - Cosmology and Nongalactic Astrophysics |
description |
We perform a cross validation of the cluster catalog selected by the red-sequence Matched-filter Probabilistic Percolation algorithm (redMaPPer) in Dark Energy Survey year 1 (DES-Y1) data by matching it with the Sunyaev-Zel'dovich effect (SZE) selected cluster catalog from the South Pole Telescope SPT-SZ survey. Using the mass information from the SZE signal, we calibrate the richness--mass relation above a measured richness $hatlambda>40$ using a Bayesian cluster population model. We find a mass trend $lambdapropto M^{B}$ consistent with a linear relation ($Bsim1$), no significant redshift evolution and an intrinsic scatter in richness of $sigma_{lambda} = 0.22pm0.06$. By considering two error models, we explore the impact of projection effects on the richness--mass modelling, confirming that such effects are not detectable at the current level of systematic uncertainties. At low richness SPT-SZ confirms fewer redMaPPer clusters than expected. We interpret this richness dependent deficit in confirmed systems as due to the increased presence at low richness of low mass objects not correctly accounted for by our richness-mass scatter model, which we call contaminants. At a richness $hat lambda=40$, this population makes up $>$12$%$ (97.5 percentile) of the total population. Extrapolating this to a measured richness $hat lambda=20$ yields $>$22$%$ (97.5 percentile). With these contamination fractions, the predicted redMaPPer number counts in different plausible cosmologies are compatible with the measured abundance. The mean mass from stacked weak lensing (WL) measurements suggests that these low mass contaminants are galaxy groups with masses $sim3$-$5 imes 10^{13} $ M$_odot$ which are beyond the sensitivity of current SZE and X-ray surveys but a natural target for SPT-3G and eROSITA. |
author2 |
Grandis, S. Mohr, J. J. Costanzi, M. Saro, A. Bocquet, S. Klein, M. Aguena, M. Allam, S. Annis, J. Ansarinejad, B. Bacon, D. Bertin, E. Bleem, L. Brooks, D. Burke, D. L. Carnero Rosel, A. Carrasco Kind, M. Carretero, J. Castander, F. J. Choi, A. da Costa, L. N. De Vincente, J. Desai, S. Diehl, H. T. Dietrich, J. P. Doel, P. Eifler, T. F. Everett, S. Ferrero, I. Floyd, B. Fosalba, P. Frieman, J. García-Bellido, J. Gaztanaga, E. Gruen, D. Gruendl, R. A. Gschwend, J. Gupta, N. Gutierrez, G. Hinton, S. R. Hollowood, D. L. Honscheid, K. James, D. J. Jeltema, T. Kuehn, K. Lahav, O. Lidman, C. Lima, M. Maia, M. A. G. March, M. |
format |
Article in Journal/Newspaper |
author |
Grandis, S. Mohr, J. J. Costanzi, M. Saro, A. Bocquet, S. Klein, M. Aguena, M. Allam, S. Annis, J. Ansarinejad, B. Bacon, D. Bertin, E. Bleem, L. Brooks, D. Burke, D. L. Carnero Rosel, A. Carrasco Kind, M. Carretero, J. Castander, F. J. Choi, A. da Costa, L. N. De Vincente, J. Desai, S. Diehl, H. T. Dietrich, J. P. Doel, P. Eifler, T. F. Everett, S. Ferrero, I. Floyd, B. Fosalba, P. Frieman, J. García-Bellido, J. Gaztanaga, E. Gruen, D. Gruendl, R. A. Gschwend, J. Gupta, N. Gutierrez, G. Hinton, S. R. Hollowood, D. L. Honscheid, K. James, D. J. Jeltema, T. Kuehn, K. Lahav, O. Lidman, C. Lima, M. Maia, M. A. G. March, M. Marshall, J. L. Melchior, P. Menanteau, F. Miquel, R. Morgan, R. Myles, J. Ogando, R. Palmese, A. Paz-Chinchón, F. Plazas, A. A. Reichardt, C. L. Romer, A. K. Sanchez, E. Scarpine, V. Serrano, S. Sevilla-Noarbe, I. Singh, P. Smith, M. Suchyta, E. Swanson, M. E. C. Tarle, G. Thomas, D. To, C. Weller, J. Wilkinson, R. D. Wu, H. |
author_facet |
Grandis, S. Mohr, J. J. Costanzi, M. Saro, A. Bocquet, S. Klein, M. Aguena, M. Allam, S. Annis, J. Ansarinejad, B. Bacon, D. Bertin, E. Bleem, L. Brooks, D. Burke, D. L. Carnero Rosel, A. Carrasco Kind, M. Carretero, J. Castander, F. J. Choi, A. da Costa, L. N. De Vincente, J. Desai, S. Diehl, H. T. Dietrich, J. P. Doel, P. Eifler, T. F. Everett, S. Ferrero, I. Floyd, B. Fosalba, P. Frieman, J. García-Bellido, J. Gaztanaga, E. Gruen, D. Gruendl, R. A. Gschwend, J. Gupta, N. Gutierrez, G. Hinton, S. R. Hollowood, D. L. Honscheid, K. James, D. J. Jeltema, T. Kuehn, K. Lahav, O. Lidman, C. Lima, M. Maia, M. A. G. March, M. Marshall, J. L. Melchior, P. Menanteau, F. Miquel, R. Morgan, R. Myles, J. Ogando, R. Palmese, A. Paz-Chinchón, F. Plazas, A. A. Reichardt, C. L. Romer, A. K. Sanchez, E. Scarpine, V. Serrano, S. Sevilla-Noarbe, I. Singh, P. Smith, M. Suchyta, E. Swanson, M. E. C. Tarle, G. Thomas, D. To, C. Weller, J. Wilkinson, R. D. Wu, H. |
author_sort |
Grandis, S. |
title |
Exploring the contamination of the DES-Y1 Cluster Sample with SPT-SZ selected clusters |
title_short |
Exploring the contamination of the DES-Y1 Cluster Sample with SPT-SZ selected clusters |
title_full |
Exploring the contamination of the DES-Y1 Cluster Sample with SPT-SZ selected clusters |
title_fullStr |
Exploring the contamination of the DES-Y1 Cluster Sample with SPT-SZ selected clusters |
title_full_unstemmed |
Exploring the contamination of the DES-Y1 Cluster Sample with SPT-SZ selected clusters |
title_sort |
exploring the contamination of the des-y1 cluster sample with spt-sz selected clusters |
publishDate |
2021 |
url |
http://hdl.handle.net/11368/2988336 https://doi.org/10.1093/mnras/stab869 https://academic.oup.com/mnras/article/504/1/1253/6188380 |
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ENVELOPE(-62.983,-62.983,-64.300,-64.300) |
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Lambda South Pole |
geographic_facet |
Lambda South Pole |
genre |
South pole |
genre_facet |
South pole |
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https://doi.org/10.1093/mnras/stab869 |
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Monthly Notices of the Royal Astronomical Society |
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ftunitriestiris:oai:arts.units.it:11368/2988336 2023-05-15T18:23:03+02:00 Exploring the contamination of the DES-Y1 Cluster Sample with SPT-SZ selected clusters Grandis, S. Mohr, J. J. Costanzi, M. Saro, A. Bocquet, S. Klein, M. Aguena, M. Allam, S. Annis, J. Ansarinejad, B. Bacon, D. Bertin, E. Bleem, L. Brooks, D. Burke, D. L. Carnero Rosel, A. Carrasco Kind, M. Carretero, J. Castander, F. J. Choi, A. da Costa, L. N. De Vincente, J. Desai, S. Diehl, H. T. Dietrich, J. P. Doel, P. Eifler, T. F. Everett, S. Ferrero, I. Floyd, B. Fosalba, P. Frieman, J. García-Bellido, J. Gaztanaga, E. Gruen, D. Gruendl, R. A. Gschwend, J. Gupta, N. Gutierrez, G. Hinton, S. R. Hollowood, D. L. Honscheid, K. James, D. J. Jeltema, T. Kuehn, K. Lahav, O. Lidman, C. Lima, M. Maia, M. A. G. March, M. Marshall, J. L. Melchior, P. Menanteau, F. Miquel, R. Morgan, R. Myles, J. Ogando, R. Palmese, A. Paz-Chinchón, F. Plazas, A. A. Reichardt, C. L. Romer, A. K. Sanchez, E. Scarpine, V. Serrano, S. Sevilla-Noarbe, I. Singh, P. Smith, M. Suchyta, E. Swanson, M. E. C. Tarle, G. Thomas, D. To, C. Weller, J. Wilkinson, R. D. Wu, H. Grandis, S. Mohr, J. J. Costanzi, M. Saro, A. Bocquet, S. Klein, M. Aguena, M. Allam, S. Annis, J. Ansarinejad, B. Bacon, D. Bertin, E. Bleem, L. Brooks, D. Burke, D. L. Carnero Rosel, A. Carrasco Kind, M. Carretero, J. Castander, F. J. Choi, A. da Costa, L. N. De Vincente, J. Desai, S. Diehl, H. T. Dietrich, J. P. Doel, P. Eifler, T. F. Everett, S. Ferrero, I. Floyd, B. Fosalba, P. Frieman, J. García-Bellido, J. Gaztanaga, E. Gruen, D. Gruendl, R. A. Gschwend, J. Gupta, N. Gutierrez, G. Hinton, S. R. Hollowood, D. L. Honscheid, K. James, D. J. Jeltema, T. Kuehn, K. Lahav, O. Lidman, C. Lima, M. Maia, M. A. G. March, M. 2021 http://hdl.handle.net/11368/2988336 https://doi.org/10.1093/mnras/stab869 https://academic.oup.com/mnras/article/504/1/1253/6188380 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000656137100090 issue:504 firstpage:1253 lastpage:1272 numberofpages:20 journal:MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY http://hdl.handle.net/11368/2988336 doi:10.1093/mnras/stab869 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85107849742 https://academic.oup.com/mnras/article/504/1/1253/6188380 info:eu-repo/semantics/openAccess large-scale structure of Universe methods: statistical galaxies: clusters: general Astrophysics - Cosmology and Nongalactic Astrophysics info:eu-repo/semantics/article 2021 ftunitriestiris https://doi.org/10.1093/mnras/stab869 2023-04-09T06:19:46Z We perform a cross validation of the cluster catalog selected by the red-sequence Matched-filter Probabilistic Percolation algorithm (redMaPPer) in Dark Energy Survey year 1 (DES-Y1) data by matching it with the Sunyaev-Zel'dovich effect (SZE) selected cluster catalog from the South Pole Telescope SPT-SZ survey. Using the mass information from the SZE signal, we calibrate the richness--mass relation above a measured richness $hatlambda>40$ using a Bayesian cluster population model. We find a mass trend $lambdapropto M^{B}$ consistent with a linear relation ($Bsim1$), no significant redshift evolution and an intrinsic scatter in richness of $sigma_{lambda} = 0.22pm0.06$. By considering two error models, we explore the impact of projection effects on the richness--mass modelling, confirming that such effects are not detectable at the current level of systematic uncertainties. At low richness SPT-SZ confirms fewer redMaPPer clusters than expected. We interpret this richness dependent deficit in confirmed systems as due to the increased presence at low richness of low mass objects not correctly accounted for by our richness-mass scatter model, which we call contaminants. At a richness $hat lambda=40$, this population makes up $>$12$%$ (97.5 percentile) of the total population. Extrapolating this to a measured richness $hat lambda=20$ yields $>$22$%$ (97.5 percentile). With these contamination fractions, the predicted redMaPPer number counts in different plausible cosmologies are compatible with the measured abundance. The mean mass from stacked weak lensing (WL) measurements suggests that these low mass contaminants are galaxy groups with masses $sim3$-$5 imes 10^{13} $ M$_odot$ which are beyond the sensitivity of current SZE and X-ray surveys but a natural target for SPT-3G and eROSITA. Article in Journal/Newspaper South pole Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste) Lambda ENVELOPE(-62.983,-62.983,-64.300,-64.300) South Pole Monthly Notices of the Royal Astronomical Society 504 1 1253 1272 |