A joint SZ-Xray-optical analysis of the dynamical state of 288 massive galaxy clusters
We use imaging from the first three years of the Dark Energy Survey to characterize the dynamical state of 288 galaxy clusters at $0.1 \lesssim z \lesssim 0.9$ detected in the South Pole Telescope (SPT) Sunyaev-Zeldovich (SZ) effect survey (SPT-SZ). We examine spatial offsets between the position of...
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Online Access: | https://dx.doi.org/10.48550/arxiv.2004.01721 https://arxiv.org/abs/2004.01721 |
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ftdatacite:10.48550/arxiv.2004.01721 2023-05-15T18:23:09+02:00 A joint SZ-Xray-optical analysis of the dynamical state of 288 massive galaxy clusters Zenteno, A. Hernández-Lang, D. Klein, M. Cervantes, C. Vergara 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. Rosell, A. Carnero Kind, M. Carrasco 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. Kuehn, K. Lahav, O. Lima, M. Maia, M. A. G. March, M. McDonald, M. Melchior, P. Menanteau, F. Miquel, R. Ogando, R. L. C. Paz-Chinchón, F. Plazas, A. A. Rykoff, E. S. Roodman, A. Sanchez, E. Scarpine, V. Schubnell, M. Serrano, S. Sevilla-Noarbe, I. Smith, M. Soares-Santos, M. Suchyta, E. Swanson, M. E. C. Tarle, G. Thomas, D. Varga, T. N. Walker, A. R. Wilkinson, R. D. 2020 https://dx.doi.org/10.48550/arxiv.2004.01721 https://arxiv.org/abs/2004.01721 unknown arXiv https://dx.doi.org/10.1093/mnras/staa1157 arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Astrophysics of Galaxies astro-ph.GA Cosmology and Nongalactic Astrophysics astro-ph.CO FOS Physical sciences article-journal Article ScholarlyArticle Text 2020 ftdatacite https://doi.org/10.48550/arxiv.2004.01721 https://doi.org/10.1093/mnras/staa1157 2022-03-10T16:15:01Z We use imaging from the first three years of the Dark Energy Survey to characterize the dynamical state of 288 galaxy clusters at $0.1 \lesssim z \lesssim 0.9$ 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 center 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 $z \gtrsim 0.5$, 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. : 21 pages, 12 Figures, 4 Tables. Accepted for publication in MNRAS Article in Journal/Newspaper South pole DataCite Metadata Store (German National Library of Science and Technology) South Pole |
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DataCite Metadata Store (German National Library of Science and Technology) |
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Astrophysics of Galaxies astro-ph.GA Cosmology and Nongalactic Astrophysics astro-ph.CO FOS Physical sciences |
spellingShingle |
Astrophysics of Galaxies astro-ph.GA Cosmology and Nongalactic Astrophysics astro-ph.CO FOS Physical sciences Zenteno, A. Hernández-Lang, D. Klein, M. Cervantes, C. Vergara 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. Rosell, A. Carnero Kind, M. Carrasco 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. Kuehn, K. Lahav, O. Lima, M. Maia, M. A. G. March, M. McDonald, M. Melchior, P. Menanteau, F. Miquel, R. Ogando, R. L. C. Paz-Chinchón, F. Plazas, A. A. Rykoff, E. S. Roodman, A. Sanchez, E. Scarpine, V. Schubnell, M. Serrano, S. Sevilla-Noarbe, I. Smith, M. Soares-Santos, M. Suchyta, E. Swanson, M. E. C. Tarle, G. Thomas, D. Varga, T. N. Walker, A. R. Wilkinson, R. D. A joint SZ-Xray-optical analysis of the dynamical state of 288 massive galaxy clusters |
topic_facet |
Astrophysics of Galaxies astro-ph.GA Cosmology and Nongalactic Astrophysics astro-ph.CO FOS Physical sciences |
description |
We use imaging from the first three years of the Dark Energy Survey to characterize the dynamical state of 288 galaxy clusters at $0.1 \lesssim z \lesssim 0.9$ 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 center 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 $z \gtrsim 0.5$, 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. : 21 pages, 12 Figures, 4 Tables. Accepted for publication in MNRAS |
format |
Article in Journal/Newspaper |
author |
Zenteno, A. Hernández-Lang, D. Klein, M. Cervantes, C. Vergara 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. Rosell, A. Carnero Kind, M. Carrasco 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. Kuehn, K. Lahav, O. Lima, M. Maia, M. A. G. March, M. McDonald, M. Melchior, P. Menanteau, F. Miquel, R. Ogando, R. L. C. Paz-Chinchón, F. Plazas, A. A. Rykoff, E. S. Roodman, A. Sanchez, E. Scarpine, V. Schubnell, M. Serrano, S. Sevilla-Noarbe, I. Smith, M. Soares-Santos, M. Suchyta, E. Swanson, M. E. C. Tarle, G. Thomas, D. Varga, T. N. Walker, A. R. Wilkinson, R. D. |
author_facet |
Zenteno, A. Hernández-Lang, D. Klein, M. Cervantes, C. Vergara 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. Rosell, A. Carnero Kind, M. Carrasco 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. Kuehn, K. Lahav, O. Lima, M. Maia, M. A. G. March, M. McDonald, M. Melchior, P. Menanteau, F. Miquel, R. Ogando, R. L. C. Paz-Chinchón, F. Plazas, A. A. Rykoff, E. S. Roodman, A. Sanchez, E. Scarpine, V. Schubnell, M. Serrano, S. Sevilla-Noarbe, I. Smith, M. Soares-Santos, M. Suchyta, E. Swanson, M. E. C. Tarle, G. Thomas, D. Varga, T. N. Walker, A. R. Wilkinson, R. D. |
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 |
arXiv |
publishDate |
2020 |
url |
https://dx.doi.org/10.48550/arxiv.2004.01721 https://arxiv.org/abs/2004.01721 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
https://dx.doi.org/10.1093/mnras/staa1157 |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.2004.01721 https://doi.org/10.1093/mnras/staa1157 |
_version_ |
1766202630856507392 |