A joint SZ-Xray-optical analysis of the dynamical state of 288 massive galaxy clusters
International audience We use imaging from the first three years of the Dark Energy Survey to characterize the dynamical state of 288 galaxy clusters at 0.1 ≲ z ≲ 0.9 detected in the South Pole Telescope (SPT) Sunyaev–Zeldovich (SZ) effect survey (SPT-SZ). We examine spatial offsets between the posi...
Published in: | Monthly Notices of the Royal Astronomical Society |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | https://hal.science/hal-02557825 https://doi.org/10.1093/mnras/staa1157 |
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ftunivnantes:oai:HAL:hal-02557825v1 2023-05-15T18:22:58+02:00 A joint SZ-Xray-optical analysis of the dynamical state of 288 massive galaxy clusters Zenteno, A. Hernández-Lang, D. Klein, M. Vergara Cervantes, C. Hollowood, D.L. Bhargava, S. Palmese, A. Strazzullo, V. Romer, A.K. Mohr, J.J. Jeltema, T. Saro, A. Lidman, C. Gruen, D. Ojeda, V. Katzenberger, A. Aguena, M. Allam, S. Avila, S. Bayliss, M. Bertin, E. Brooks, D. Buckley-Geer, E. Burke, D.L. Carnero Rosell, A. Carrasco Kind, M. Carretero, J. Castander, F.J. Costanzi, M. da Costa, L.N. de Vicente, J. Desai, S. Diehl, H.T. Doel, P. Eifler, T.F. Evrard, A.E. Flaugher, B. Floyd, B. Fosalba, P. Frieman, J. García-Bellido, J. Gerdes, D.W. Gonzalez, J.R. Gruendl, R.A. Gschwend, J. Gutierrez, G. Hartley, W.G. Hinton, S.R. Honscheid, K. James, D.J. Institut d'Astrophysique de Paris (IAP) Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) DES 2020 https://hal.science/hal-02557825 https://doi.org/10.1093/mnras/staa1157 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/arxiv/2004.01721 info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/staa1157 hal-02557825 https://hal.science/hal-02557825 ARXIV: 2004.01721 doi:10.1093/mnras/staa1157 INSPIRE: 1789838 Mon.Not.Roy.Astron.Soc. https://hal.science/hal-02557825 Mon.Not.Roy.Astron.Soc., 2020, 495 (1), pp.705-725. ⟨10.1093/mnras/staa1157⟩ galaxies: evolution galaxies: luminosity function mass function galaxies: clusters: general [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] info:eu-repo/semantics/article Journal articles 2020 ftunivnantes https://doi.org/10.1093/mnras/staa1157 2023-03-08T04:41:52Z International audience We use imaging from the first three years of the Dark Energy Survey to characterize the dynamical state of 288 galaxy clusters at 0.1 ≲ z ≲ 0.9 detected in the South Pole Telescope (SPT) Sunyaev–Zeldovich (SZ) effect survey (SPT-SZ). We examine spatial offsets between the position of the brightest cluster galaxy (BCG) and the centre of the gas distribution as traced by the SPT-SZ centroid and by the X-ray centroid/peak position from Chandra and XMM data. We show that the radial distribution of offsets provides no evidence that SPT SZ-selected cluster samples include a higher fraction of mergers than X-ray-selected cluster samples. We use the offsets to classify the dynamical state of the clusters, selecting the 43 most disturbed clusters, with half of those at z ≳ 0.5, a region seldom explored previously. We find that Schechter function fits to the galaxy population in disturbed clusters and relaxed clusters differ at z > 0.55 but not at lower redshifts. Disturbed clusters at z > 0.55 have steeper faint-end slopes and brighter characteristic magnitudes. Within the same redshift range, we find that the BCGs in relaxed clusters tend to be brighter than the BCGs in disturbed samples, while in agreement in the lower redshift bin. Possible explanations includes a higher merger rate, and a more efficient dynamical friction at high redshift. The red-sequence population is less affected by the cluster dynamical state than the general galaxy population. Article in Journal/Newspaper South pole Université de Nantes: HAL-UNIV-NANTES South Pole Monthly Notices of the Royal Astronomical Society 495 1 705 725 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
galaxies: evolution galaxies: luminosity function mass function galaxies: clusters: general [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
spellingShingle |
galaxies: evolution galaxies: luminosity function mass function galaxies: clusters: general [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] Zenteno, A. Hernández-Lang, D. Klein, M. Vergara Cervantes, C. Hollowood, D.L. Bhargava, S. Palmese, A. Strazzullo, V. Romer, A.K. Mohr, J.J. Jeltema, T. Saro, A. Lidman, C. Gruen, D. Ojeda, V. Katzenberger, A. Aguena, M. Allam, S. Avila, S. Bayliss, M. Bertin, E. Brooks, D. Buckley-Geer, E. Burke, D.L. Carnero Rosell, A. Carrasco Kind, M. Carretero, J. Castander, F.J. Costanzi, M. da Costa, L.N. de Vicente, J. Desai, S. Diehl, H.T. Doel, P. Eifler, T.F. Evrard, A.E. Flaugher, B. Floyd, B. Fosalba, P. Frieman, J. García-Bellido, J. Gerdes, D.W. Gonzalez, J.R. Gruendl, R.A. Gschwend, J. Gutierrez, G. Hartley, W.G. Hinton, S.R. Honscheid, K. James, D.J. A joint SZ-Xray-optical analysis of the dynamical state of 288 massive galaxy clusters |
topic_facet |
galaxies: evolution galaxies: luminosity function mass function galaxies: clusters: general [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
description |
International audience We use imaging from the first three years of the Dark Energy Survey to characterize the dynamical state of 288 galaxy clusters at 0.1 ≲ z ≲ 0.9 detected in the South Pole Telescope (SPT) Sunyaev–Zeldovich (SZ) effect survey (SPT-SZ). We examine spatial offsets between the position of the brightest cluster galaxy (BCG) and the centre of the gas distribution as traced by the SPT-SZ centroid and by the X-ray centroid/peak position from Chandra and XMM data. We show that the radial distribution of offsets provides no evidence that SPT SZ-selected cluster samples include a higher fraction of mergers than X-ray-selected cluster samples. We use the offsets to classify the dynamical state of the clusters, selecting the 43 most disturbed clusters, with half of those at z ≳ 0.5, a region seldom explored previously. We find that Schechter function fits to the galaxy population in disturbed clusters and relaxed clusters differ at z > 0.55 but not at lower redshifts. Disturbed clusters at z > 0.55 have steeper faint-end slopes and brighter characteristic magnitudes. Within the same redshift range, we find that the BCGs in relaxed clusters tend to be brighter than the BCGs in disturbed samples, while in agreement in the lower redshift bin. Possible explanations includes a higher merger rate, and a more efficient dynamical friction at high redshift. The red-sequence population is less affected by the cluster dynamical state than the general galaxy population. |
author2 |
Institut d'Astrophysique de Paris (IAP) Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) DES |
format |
Article in Journal/Newspaper |
author |
Zenteno, A. Hernández-Lang, D. Klein, M. Vergara Cervantes, C. Hollowood, D.L. Bhargava, S. Palmese, A. Strazzullo, V. Romer, A.K. Mohr, J.J. Jeltema, T. Saro, A. Lidman, C. Gruen, D. Ojeda, V. Katzenberger, A. Aguena, M. Allam, S. Avila, S. Bayliss, M. Bertin, E. Brooks, D. Buckley-Geer, E. Burke, D.L. Carnero Rosell, A. Carrasco Kind, M. Carretero, J. Castander, F.J. Costanzi, M. da Costa, L.N. de Vicente, J. Desai, S. Diehl, H.T. Doel, P. Eifler, T.F. Evrard, A.E. Flaugher, B. Floyd, B. Fosalba, P. Frieman, J. García-Bellido, J. Gerdes, D.W. Gonzalez, J.R. Gruendl, R.A. Gschwend, J. Gutierrez, G. Hartley, W.G. Hinton, S.R. Honscheid, K. James, D.J. |
author_facet |
Zenteno, A. Hernández-Lang, D. Klein, M. Vergara Cervantes, C. Hollowood, D.L. Bhargava, S. Palmese, A. Strazzullo, V. Romer, A.K. Mohr, J.J. Jeltema, T. Saro, A. Lidman, C. Gruen, D. Ojeda, V. Katzenberger, A. Aguena, M. Allam, S. Avila, S. Bayliss, M. Bertin, E. Brooks, D. Buckley-Geer, E. Burke, D.L. Carnero Rosell, A. Carrasco Kind, M. Carretero, J. Castander, F.J. Costanzi, M. da Costa, L.N. de Vicente, J. Desai, S. Diehl, H.T. Doel, P. Eifler, T.F. Evrard, A.E. Flaugher, B. Floyd, B. Fosalba, P. Frieman, J. García-Bellido, J. Gerdes, D.W. Gonzalez, J.R. Gruendl, R.A. Gschwend, J. Gutierrez, G. Hartley, W.G. Hinton, S.R. Honscheid, K. James, D.J. |
author_sort |
Zenteno, A. |
title |
A joint SZ-Xray-optical analysis of the dynamical state of 288 massive galaxy clusters |
title_short |
A joint SZ-Xray-optical analysis of the dynamical state of 288 massive galaxy clusters |
title_full |
A joint SZ-Xray-optical analysis of the dynamical state of 288 massive galaxy clusters |
title_fullStr |
A joint SZ-Xray-optical analysis of the dynamical state of 288 massive galaxy clusters |
title_full_unstemmed |
A joint SZ-Xray-optical analysis of the dynamical state of 288 massive galaxy clusters |
title_sort |
joint sz-xray-optical analysis of the dynamical state of 288 massive galaxy clusters |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.science/hal-02557825 https://doi.org/10.1093/mnras/staa1157 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
Mon.Not.Roy.Astron.Soc. https://hal.science/hal-02557825 Mon.Not.Roy.Astron.Soc., 2020, 495 (1), pp.705-725. ⟨10.1093/mnras/staa1157⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/arxiv/2004.01721 info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/staa1157 hal-02557825 https://hal.science/hal-02557825 ARXIV: 2004.01721 doi:10.1093/mnras/staa1157 INSPIRE: 1789838 |
op_doi |
https://doi.org/10.1093/mnras/staa1157 |
container_title |
Monthly Notices of the Royal Astronomical Society |
container_volume |
495 |
container_issue |
1 |
container_start_page |
705 |
op_container_end_page |
725 |
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1766202372871159808 |