Measurement of the splashback feature around SZ-selected Galaxy clusters with DES, SPT, and ACT
International audience We present a detection of the splashback feature around galaxy clusters selected using the Sunyaev–Zel’dovich (SZ) signal. Recent measurements of the splashback feature around optically selected galaxy clusters have found that the splashback radius, r_sp, is smaller than predi...
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-01965507 https://doi.org/10.1093/mnras/stz1434 |
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ftunivnantes:oai:HAL:hal-01965507v1 2023-05-15T18:23:17+02:00 Measurement of the splashback feature around SZ-selected Galaxy clusters with DES, SPT, and ACT Shin, T. Adhikari, S. Baxter, E.J. Chang, C. Jain, B. Battaglia, N. Bleem, L. Bocquet, S. Derose, J. Gruen, D. Hilton, M. Kravtsov, A. Mcclintock, T. Rozo, E. Rykoff, E.S. Varga, T.N. Wechsler, R.H. Wu, H. Aiola, S. Allam, S. Bechtol, K. Benson, B.A. Bertin, E. Bond, J.R. Brodwin, M. Brooks, D. Buckley-Geer, E. Burke, D.L. Carlstrom, J.E. Carnero Rosell, A. Carrasco Kind, M. Carretero, J. Castander, F.J. Choi, S.K. Cunha, C.E. Crawford, T.M. da Costa, L.N. de Vicente, J. Desai, S. Devlin, M.J. Dietrich, J.P. Doel, P. Dunkley, J. Eifler, T.F. Evrard, A.E. Flaugher, B. Fosalba, P. Gallardo, P.A. García-Bellido, J. Gaztanaga, E. 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 ACT SPT 2019 https://hal.science/hal-01965507 https://doi.org/10.1093/mnras/stz1434 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/arxiv/1811.06081 info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stz1434 hal-01965507 https://hal.science/hal-01965507 ARXIV: 1811.06081 doi:10.1093/mnras/stz1434 INSPIRE: 1703815 Mon.Not.Roy.Astron.Soc. https://hal.science/hal-01965507 Mon.Not.Roy.Astron.Soc., 2019, 487 (2), pp.2900-2918. ⟨10.1093/mnras/stz1434⟩ galaxies: clusters: general galaxies: evolution cosmology: observations [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] info:eu-repo/semantics/article Journal articles 2019 ftunivnantes https://doi.org/10.1093/mnras/stz1434 2023-03-08T05:52:06Z International audience We present a detection of the splashback feature around galaxy clusters selected using the Sunyaev–Zel’dovich (SZ) signal. Recent measurements of the splashback feature around optically selected galaxy clusters have found that the splashback radius, r_sp, is smaller than predicted by N-body simulations. A possible explanation for this discrepancy is that r_sp inferred from the observed radial distribution of galaxies is affected by selection effects related to the optical cluster-finding algorithms. We test this possibility by measuring the splashback feature in clusters selected via the SZ effect in data from the South Pole Telescope SZ survey and the Atacama Cosmology Telescope Polarimeter survey. The measurement is accomplished by correlating these cluster samples with galaxies detected in the Dark Energy Survey Year 3 data. The SZ observable used to select clusters in this analysis is expected to have a tighter correlation with halo mass and to be more immune to projection effects and aperture-induced biases, potentially ameliorating causes of systematic error for optically selected clusters. We find that the measured r_sp for SZ-selected clusters is consistent with the expectations from simulations, although the small number of SZ-selected clusters makes a precise comparison difficult. In agreement with previous work, when using optically selected redMaPPer clusters with similar mass and redshift distributions, r_sp is ∼2σ smaller than in the simulations. These results motivate detailed investigations of selection biases in optically selected cluster catalogues and exploration of the splashback feature around larger samples of SZ-selected clusters. Additionally, we investigate trends in the galaxy profile and splashback feature as a function of galaxy colour, finding that blue galaxies have profiles close to a power law with no discernible splashback feature, which is consistent with them being on their first infall into the cluster. Article in Journal/Newspaper South pole Université de Nantes: HAL-UNIV-NANTES South Pole Monthly Notices of the Royal Astronomical Society 487 2 2900 2918 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
galaxies: clusters: general galaxies: evolution cosmology: observations [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
spellingShingle |
galaxies: clusters: general galaxies: evolution cosmology: observations [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] Shin, T. Adhikari, S. Baxter, E.J. Chang, C. Jain, B. Battaglia, N. Bleem, L. Bocquet, S. Derose, J. Gruen, D. Hilton, M. Kravtsov, A. Mcclintock, T. Rozo, E. Rykoff, E.S. Varga, T.N. Wechsler, R.H. Wu, H. Aiola, S. Allam, S. Bechtol, K. Benson, B.A. Bertin, E. Bond, J.R. Brodwin, M. Brooks, D. Buckley-Geer, E. Burke, D.L. Carlstrom, J.E. Carnero Rosell, A. Carrasco Kind, M. Carretero, J. Castander, F.J. Choi, S.K. Cunha, C.E. Crawford, T.M. da Costa, L.N. de Vicente, J. Desai, S. Devlin, M.J. Dietrich, J.P. Doel, P. Dunkley, J. Eifler, T.F. Evrard, A.E. Flaugher, B. Fosalba, P. Gallardo, P.A. García-Bellido, J. Gaztanaga, E. Measurement of the splashback feature around SZ-selected Galaxy clusters with DES, SPT, and ACT |
topic_facet |
galaxies: clusters: general galaxies: evolution cosmology: observations [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
description |
International audience We present a detection of the splashback feature around galaxy clusters selected using the Sunyaev–Zel’dovich (SZ) signal. Recent measurements of the splashback feature around optically selected galaxy clusters have found that the splashback radius, r_sp, is smaller than predicted by N-body simulations. A possible explanation for this discrepancy is that r_sp inferred from the observed radial distribution of galaxies is affected by selection effects related to the optical cluster-finding algorithms. We test this possibility by measuring the splashback feature in clusters selected via the SZ effect in data from the South Pole Telescope SZ survey and the Atacama Cosmology Telescope Polarimeter survey. The measurement is accomplished by correlating these cluster samples with galaxies detected in the Dark Energy Survey Year 3 data. The SZ observable used to select clusters in this analysis is expected to have a tighter correlation with halo mass and to be more immune to projection effects and aperture-induced biases, potentially ameliorating causes of systematic error for optically selected clusters. We find that the measured r_sp for SZ-selected clusters is consistent with the expectations from simulations, although the small number of SZ-selected clusters makes a precise comparison difficult. In agreement with previous work, when using optically selected redMaPPer clusters with similar mass and redshift distributions, r_sp is ∼2σ smaller than in the simulations. These results motivate detailed investigations of selection biases in optically selected cluster catalogues and exploration of the splashback feature around larger samples of SZ-selected clusters. Additionally, we investigate trends in the galaxy profile and splashback feature as a function of galaxy colour, finding that blue galaxies have profiles close to a power law with no discernible splashback feature, which is consistent with them being on their first infall into the cluster. |
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 ACT SPT |
format |
Article in Journal/Newspaper |
author |
Shin, T. Adhikari, S. Baxter, E.J. Chang, C. Jain, B. Battaglia, N. Bleem, L. Bocquet, S. Derose, J. Gruen, D. Hilton, M. Kravtsov, A. Mcclintock, T. Rozo, E. Rykoff, E.S. Varga, T.N. Wechsler, R.H. Wu, H. Aiola, S. Allam, S. Bechtol, K. Benson, B.A. Bertin, E. Bond, J.R. Brodwin, M. Brooks, D. Buckley-Geer, E. Burke, D.L. Carlstrom, J.E. Carnero Rosell, A. Carrasco Kind, M. Carretero, J. Castander, F.J. Choi, S.K. Cunha, C.E. Crawford, T.M. da Costa, L.N. de Vicente, J. Desai, S. Devlin, M.J. Dietrich, J.P. Doel, P. Dunkley, J. Eifler, T.F. Evrard, A.E. Flaugher, B. Fosalba, P. Gallardo, P.A. García-Bellido, J. Gaztanaga, E. |
author_facet |
Shin, T. Adhikari, S. Baxter, E.J. Chang, C. Jain, B. Battaglia, N. Bleem, L. Bocquet, S. Derose, J. Gruen, D. Hilton, M. Kravtsov, A. Mcclintock, T. Rozo, E. Rykoff, E.S. Varga, T.N. Wechsler, R.H. Wu, H. Aiola, S. Allam, S. Bechtol, K. Benson, B.A. Bertin, E. Bond, J.R. Brodwin, M. Brooks, D. Buckley-Geer, E. Burke, D.L. Carlstrom, J.E. Carnero Rosell, A. Carrasco Kind, M. Carretero, J. Castander, F.J. Choi, S.K. Cunha, C.E. Crawford, T.M. da Costa, L.N. de Vicente, J. Desai, S. Devlin, M.J. Dietrich, J.P. Doel, P. Dunkley, J. Eifler, T.F. Evrard, A.E. Flaugher, B. Fosalba, P. Gallardo, P.A. García-Bellido, J. Gaztanaga, E. |
author_sort |
Shin, T. |
title |
Measurement of the splashback feature around SZ-selected Galaxy clusters with DES, SPT, and ACT |
title_short |
Measurement of the splashback feature around SZ-selected Galaxy clusters with DES, SPT, and ACT |
title_full |
Measurement of the splashback feature around SZ-selected Galaxy clusters with DES, SPT, and ACT |
title_fullStr |
Measurement of the splashback feature around SZ-selected Galaxy clusters with DES, SPT, and ACT |
title_full_unstemmed |
Measurement of the splashback feature around SZ-selected Galaxy clusters with DES, SPT, and ACT |
title_sort |
measurement of the splashback feature around sz-selected galaxy clusters with des, spt, and act |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://hal.science/hal-01965507 https://doi.org/10.1093/mnras/stz1434 |
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-01965507 Mon.Not.Roy.Astron.Soc., 2019, 487 (2), pp.2900-2918. ⟨10.1093/mnras/stz1434⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/arxiv/1811.06081 info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stz1434 hal-01965507 https://hal.science/hal-01965507 ARXIV: 1811.06081 doi:10.1093/mnras/stz1434 INSPIRE: 1703815 |
op_doi |
https://doi.org/10.1093/mnras/stz1434 |
container_title |
Monthly Notices of the Royal Astronomical Society |
container_volume |
487 |
container_issue |
2 |
container_start_page |
2900 |
op_container_end_page |
2918 |
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1766202850229092352 |