Optical-SZE Scaling Relations for DES Optically Selected Clusters within the SPT-SZ Survey
We study the Sunyaev-Zel'dovich effect (SZE) signature in South Pole Telescope (SPT) data for an ensemble of 719 optically identified galaxy clusters selected from 124.6 deg$^2$ of the Dark Energy Survey (DES) science verification data, detecting a stacked SZE signal down to richness $\lambda\s...
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ftucl:oai:eprints.ucl.ac.uk.OAI2:1540495 2023-12-24T10:24:57+01:00 Optical-SZE Scaling Relations for DES Optically Selected Clusters within the SPT-SZ Survey Saro, A Bocquet, S Mohr, J Rozo, E Benson, BA Dodelson, S Rykoff, ES Bleem, L Abbott, TMC Abdalla, FB Allen, S Annis, J Benoit-Levy, A Brooks, D Burke, DL Capasso, R Rosell, AC Kind, MC Carretero, J Chiu, I Crawford, TM Cunha, CE D'Andrea, CB Costa, LND Desai, S Dietrich, JP Evrard, AE Neto, AF Flaugher, B Fosalba, P Frieman, J Gangkofner, C Gaztanaga, E Gerdes, DW Giannantonio, T Grandis, S Gruen, D Gruendl, RA Gupta, N Gutierrez, G Holzapfel, WL James, DJ Kuehn, K Kuropatkin, N Lima, M Marshall, JL McDonald, M Melchior, P Menanteau, F Miquel, R Ogando, R Plazas, AA Rapetti, D Reichardt, CL Reil, K Romer, AK Sanchez, E Scarpine, V Schubnell, M Sevilla-Noarbe, I Smith, RC Soares-Santos, M Soergel, B Strazzullo, V Suchyta, E Swanson, MEC Tarle, G Thomas, D Vikram, V Walker, AR Zenteno, A 2017-07 text https://discovery.ucl.ac.uk/id/eprint/1540495/1/Abdalla_stx594.pdf https://discovery.ucl.ac.uk/id/eprint/1540495/ eng eng https://discovery.ucl.ac.uk/id/eprint/1540495/1/Abdalla_stx594.pdf https://discovery.ucl.ac.uk/id/eprint/1540495/ open Monthly Notices of the Royal Astronomical Society , 468 (3) pp. 3347-3360. (2017) Methods: observational methods: statistical galaxies: abundances galaxies: clusters: general large-scale structure of Universe Article 2017 ftucl 2023-11-27T13:07:39Z We study the Sunyaev-Zel'dovich effect (SZE) signature in South Pole Telescope (SPT) data for an ensemble of 719 optically identified galaxy clusters selected from 124.6 deg$^2$ of the Dark Energy Survey (DES) science verification data, detecting a stacked SZE signal down to richness $\lambda\sim20$. The SZE signature is measured using matched-filtered maps of the 2500 deg$^2$ SPT-SZ survey at the positions of the DES clusters, and the degeneracy between SZE observable and matched-filter size is broken by adopting as priors SZE and optical mass-observable relations that are either calibrated using SPT selected clusters or through the Arnaud et al. (2010, A10) X-ray analysis. We measure the SPT signal to noise $\zeta$-$\lambda$, relation and two integrated Compton-$y$ $Y_\textrm{500}$-$\lambda$ relations for the DES-selected clusters and compare these to model expectations accounting for the SZE-optical center offset distribution. For clusters with $\lambda > 80$, the two SPT calibrated scaling relations are consistent with the measurements, while for the A10-calibrated relation the measured SZE signal is smaller by a factor of $0.61 \pm 0.12$ compared to the prediction. For clusters at $20 < \lambda < 80$, the measured SZE signal is smaller by a factor of $\sim$0.20-0.80 (between 2.3 and 10~$\sigma$ significance) compared to the prediction, with the SPT calibrated scaling relations and larger $\lambda$ clusters showing generally better agreement. We quantify the required corrections to achieve consistency, showing that there is a richness dependent bias that can be explained by some combination of contamination of the observables and biases in the estimated masses. We discuss possible physical effects, as contamination from line-of-sight projections or from point sources, larger offsets in the SZE-optical centering or larger scatter in the $\lambda$-mass relation at lower richnesses. Article in Journal/Newspaper South pole University College London: UCL Discovery Lambda ENVELOPE(-62.983,-62.983,-64.300,-64.300) South Pole |
institution |
Open Polar |
collection |
University College London: UCL Discovery |
op_collection_id |
ftucl |
language |
English |
topic |
Methods: observational methods: statistical galaxies: abundances galaxies: clusters: general large-scale structure of Universe |
spellingShingle |
Methods: observational methods: statistical galaxies: abundances galaxies: clusters: general large-scale structure of Universe Saro, A Bocquet, S Mohr, J Rozo, E Benson, BA Dodelson, S Rykoff, ES Bleem, L Abbott, TMC Abdalla, FB Allen, S Annis, J Benoit-Levy, A Brooks, D Burke, DL Capasso, R Rosell, AC Kind, MC Carretero, J Chiu, I Crawford, TM Cunha, CE D'Andrea, CB Costa, LND Desai, S Dietrich, JP Evrard, AE Neto, AF Flaugher, B Fosalba, P Frieman, J Gangkofner, C Gaztanaga, E Gerdes, DW Giannantonio, T Grandis, S Gruen, D Gruendl, RA Gupta, N Gutierrez, G Holzapfel, WL James, DJ Kuehn, K Kuropatkin, N Lima, M Marshall, JL McDonald, M Melchior, P Menanteau, F Miquel, R Ogando, R Plazas, AA Rapetti, D Reichardt, CL Reil, K Romer, AK Sanchez, E Scarpine, V Schubnell, M Sevilla-Noarbe, I Smith, RC Soares-Santos, M Soergel, B Strazzullo, V Suchyta, E Swanson, MEC Tarle, G Thomas, D Vikram, V Walker, AR Zenteno, A Optical-SZE Scaling Relations for DES Optically Selected Clusters within the SPT-SZ Survey |
topic_facet |
Methods: observational methods: statistical galaxies: abundances galaxies: clusters: general large-scale structure of Universe |
description |
We study the Sunyaev-Zel'dovich effect (SZE) signature in South Pole Telescope (SPT) data for an ensemble of 719 optically identified galaxy clusters selected from 124.6 deg$^2$ of the Dark Energy Survey (DES) science verification data, detecting a stacked SZE signal down to richness $\lambda\sim20$. The SZE signature is measured using matched-filtered maps of the 2500 deg$^2$ SPT-SZ survey at the positions of the DES clusters, and the degeneracy between SZE observable and matched-filter size is broken by adopting as priors SZE and optical mass-observable relations that are either calibrated using SPT selected clusters or through the Arnaud et al. (2010, A10) X-ray analysis. We measure the SPT signal to noise $\zeta$-$\lambda$, relation and two integrated Compton-$y$ $Y_\textrm{500}$-$\lambda$ relations for the DES-selected clusters and compare these to model expectations accounting for the SZE-optical center offset distribution. For clusters with $\lambda > 80$, the two SPT calibrated scaling relations are consistent with the measurements, while for the A10-calibrated relation the measured SZE signal is smaller by a factor of $0.61 \pm 0.12$ compared to the prediction. For clusters at $20 < \lambda < 80$, the measured SZE signal is smaller by a factor of $\sim$0.20-0.80 (between 2.3 and 10~$\sigma$ significance) compared to the prediction, with the SPT calibrated scaling relations and larger $\lambda$ clusters showing generally better agreement. We quantify the required corrections to achieve consistency, showing that there is a richness dependent bias that can be explained by some combination of contamination of the observables and biases in the estimated masses. We discuss possible physical effects, as contamination from line-of-sight projections or from point sources, larger offsets in the SZE-optical centering or larger scatter in the $\lambda$-mass relation at lower richnesses. |
format |
Article in Journal/Newspaper |
author |
Saro, A Bocquet, S Mohr, J Rozo, E Benson, BA Dodelson, S Rykoff, ES Bleem, L Abbott, TMC Abdalla, FB Allen, S Annis, J Benoit-Levy, A Brooks, D Burke, DL Capasso, R Rosell, AC Kind, MC Carretero, J Chiu, I Crawford, TM Cunha, CE D'Andrea, CB Costa, LND Desai, S Dietrich, JP Evrard, AE Neto, AF Flaugher, B Fosalba, P Frieman, J Gangkofner, C Gaztanaga, E Gerdes, DW Giannantonio, T Grandis, S Gruen, D Gruendl, RA Gupta, N Gutierrez, G Holzapfel, WL James, DJ Kuehn, K Kuropatkin, N Lima, M Marshall, JL McDonald, M Melchior, P Menanteau, F Miquel, R Ogando, R Plazas, AA Rapetti, D Reichardt, CL Reil, K Romer, AK Sanchez, E Scarpine, V Schubnell, M Sevilla-Noarbe, I Smith, RC Soares-Santos, M Soergel, B Strazzullo, V Suchyta, E Swanson, MEC Tarle, G Thomas, D Vikram, V Walker, AR Zenteno, A |
author_facet |
Saro, A Bocquet, S Mohr, J Rozo, E Benson, BA Dodelson, S Rykoff, ES Bleem, L Abbott, TMC Abdalla, FB Allen, S Annis, J Benoit-Levy, A Brooks, D Burke, DL Capasso, R Rosell, AC Kind, MC Carretero, J Chiu, I Crawford, TM Cunha, CE D'Andrea, CB Costa, LND Desai, S Dietrich, JP Evrard, AE Neto, AF Flaugher, B Fosalba, P Frieman, J Gangkofner, C Gaztanaga, E Gerdes, DW Giannantonio, T Grandis, S Gruen, D Gruendl, RA Gupta, N Gutierrez, G Holzapfel, WL James, DJ Kuehn, K Kuropatkin, N Lima, M Marshall, JL McDonald, M Melchior, P Menanteau, F Miquel, R Ogando, R Plazas, AA Rapetti, D Reichardt, CL Reil, K Romer, AK Sanchez, E Scarpine, V Schubnell, M Sevilla-Noarbe, I Smith, RC Soares-Santos, M Soergel, B Strazzullo, V Suchyta, E Swanson, MEC Tarle, G Thomas, D Vikram, V Walker, AR Zenteno, A |
author_sort |
Saro, A |
title |
Optical-SZE Scaling Relations for DES Optically Selected Clusters within the SPT-SZ Survey |
title_short |
Optical-SZE Scaling Relations for DES Optically Selected Clusters within the SPT-SZ Survey |
title_full |
Optical-SZE Scaling Relations for DES Optically Selected Clusters within the SPT-SZ Survey |
title_fullStr |
Optical-SZE Scaling Relations for DES Optically Selected Clusters within the SPT-SZ Survey |
title_full_unstemmed |
Optical-SZE Scaling Relations for DES Optically Selected Clusters within the SPT-SZ Survey |
title_sort |
optical-sze scaling relations for des optically selected clusters within the spt-sz survey |
publishDate |
2017 |
url |
https://discovery.ucl.ac.uk/id/eprint/1540495/1/Abdalla_stx594.pdf https://discovery.ucl.ac.uk/id/eprint/1540495/ |
long_lat |
ENVELOPE(-62.983,-62.983,-64.300,-64.300) |
geographic |
Lambda South Pole |
geographic_facet |
Lambda South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
Monthly Notices of the Royal Astronomical Society , 468 (3) pp. 3347-3360. (2017) |
op_relation |
https://discovery.ucl.ac.uk/id/eprint/1540495/1/Abdalla_stx594.pdf https://discovery.ucl.ac.uk/id/eprint/1540495/ |
op_rights |
open |
_version_ |
1786200221976363008 |