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Cosmological constraints from des Y1 cluster abundances and SPT multiwavelength data

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Cosmological constraints from des Y1 cluster abundances and SPT multiwavelength data. / DES Collaboration; SPT Collaboration ; Amara, A.; Avila, S.; Bacon, D.; Thomas, D.

In: Physical Review D, Vol. 103, No. 4, 043522, 15.02.2021.

Research output: Contribution to journalArticlepeer-review

Harvard

DES Collaboration, SPT Collaboration, Amara, A, Avila, S, Bacon, D & Thomas, D 2021, 'Cosmological constraints from des Y1 cluster abundances and SPT multiwavelength data', Physical Review D, vol. 103, no. 4, 043522. https://doi.org/10.1103/PhysRevD.103.043522

APA

DES Collaboration, SPT Collaboration, Amara, A., Avila, S., Bacon, D., & Thomas, D. (2021). Cosmological constraints from des Y1 cluster abundances and SPT multiwavelength data. Physical Review D, 103(4), [043522]. https://doi.org/10.1103/PhysRevD.103.043522

Vancouver

DES Collaboration, SPT Collaboration, Amara A, Avila S, Bacon D, Thomas D. Cosmological constraints from des Y1 cluster abundances and SPT multiwavelength data. Physical Review D. 2021 Feb 15;103(4). 043522. https://doi.org/10.1103/PhysRevD.103.043522

Author

DES Collaboration ; SPT Collaboration ; Amara, A. ; Avila, S. ; Bacon, D. ; Thomas, D. / Cosmological constraints from des Y1 cluster abundances and SPT multiwavelength data. In: Physical Review D. 2021 ; Vol. 103, No. 4.

Bibtex

@article{162dd9f9a0c14855a49643a06fb6b644,
title = "Cosmological constraints from des Y1 cluster abundances and SPT multiwavelength data",
abstract = "We perform a joint analysis of the counts of redMaPPer clusters selected from the Dark Energy Survey (DES) year 1 data and multiwavelength follow-up data collected within the 2500 deg2 South Pole Telescope (SPT) Sunyaev-Zel'dovich (SZ) survey. The SPT follow-up data, calibrating the richness-mass relation of the optically selected redMaPPer catalog, enable the cosmological exploitation of the DES cluster abundance data. To explore possible systematics related to the modeling of projection effects, we consider two calibrations of the observational scatter on richness estimates: a simple Gaussian model which account only for the background contamination (BKG), and a model which further includes contamination and incompleteness due to projection effects (PRJ). Assuming either a ΛCDM+mν or wCDM+mν cosmology, and for both scatter models, we derive cosmological constraints consistent with multiple cosmological probes of the low and high redshift Universe, and in particular with the SPT cluster abundance data. This result demonstrates that the DES Y1 and SPT cluster counts provide consistent cosmological constraints, if the same mass calibration data set is adopted. It thus supports the conclusion of the DES Y1 cluster cosmology analysis which interprets the tension observed with other cosmological probes in terms of systematics affecting the stacked weak lensing analysis of optically selected low-richness clusters. Finally, we analyze the first combined optically SZ selected cluster catalog obtained by including the SPT sample above the maximum redshift probed by the DES Y1 redMaPPer sample (z=0.65). Besides providing a mild improvement of the cosmological constraints, this data combination serves as a stricter test of our scatter models: the PRJ model, providing scaling relations consistent between the two abundance and multiwavelength follow-up data, is favored over the BKG model.",
keywords = "RCUK, STFC",
author = "{DES Collaboration} and {SPT Collaboration} and M. Costanzi and A. Saro and S. Bocquet and Abbott, {T. M.C.} and M. Aguena and S. Allam and A. Amara and J. Annis and S. Avila and D. Bacon and Benson, {B. A.} and S. Bhargava and D. Brooks and E. Buckley-Geer and Burke, {D. L.} and {Carnero Rosell}, A. and {Carrasco Kind}, M. and J. Carretero and A. Choi and {Da Costa}, {L. N.} and Pereira, {M. E.S.} and {De Vicente}, J. and S. Desai and Diehl, {H. T.} and Dietrich, {J. P.} and P. Doel and Eifler, {T. F.} and S. Everett and I. Ferrero and A. Fert{\'e} and B. Flaugher and P. Fosalba and J. Frieman and J. Garc{\'i}a-Bellido and E. Gaztanaga and Gerdes, {D. W.} and T. Giannantonio and P. Giles and S. Grandis and D. Gruen and Gruendl, {R. A.} and N. Gupta and G. Gutierrez and Hartley, {W. G.} and Hinton, {S. R.} and Hollowood, {D. L.} and K. Honscheid and James, {D. J.} and T. Jeltema and D. Thomas",
year = "2021",
month = feb,
day = "15",
doi = "10.1103/PhysRevD.103.043522",
language = "English",
volume = "103",
journal = "Physical Review D",
issn = "1550-7998",
publisher = "American Institute of Physics Publising LLC",
number = "4",

}

RIS

TY - JOUR

T1 - Cosmological constraints from des Y1 cluster abundances and SPT multiwavelength data

AU - DES Collaboration

AU - SPT Collaboration

AU - Costanzi, M.

AU - Saro, A.

AU - Bocquet, S.

AU - Abbott, T. M.C.

AU - Aguena, M.

AU - Allam, S.

AU - Amara, A.

AU - Annis, J.

AU - Avila, S.

AU - Bacon, D.

AU - Benson, B. A.

AU - Bhargava, S.

AU - Brooks, D.

AU - Buckley-Geer, E.

AU - Burke, D. L.

AU - Carnero Rosell, A.

AU - Carrasco Kind, M.

AU - Carretero, J.

AU - Choi, A.

AU - Da Costa, L. N.

AU - Pereira, M. E.S.

AU - De Vicente, J.

AU - Desai, S.

AU - Diehl, H. T.

AU - Dietrich, J. P.

AU - Doel, P.

AU - Eifler, T. F.

AU - Everett, S.

AU - Ferrero, I.

AU - Ferté, A.

AU - Flaugher, B.

AU - Fosalba, P.

AU - Frieman, J.

AU - García-Bellido, J.

AU - Gaztanaga, E.

AU - Gerdes, D. W.

AU - Giannantonio, T.

AU - Giles, P.

AU - Grandis, S.

AU - Gruen, D.

AU - Gruendl, R. A.

AU - Gupta, N.

AU - Gutierrez, G.

AU - Hartley, W. G.

AU - Hinton, S. R.

AU - Hollowood, D. L.

AU - Honscheid, K.

AU - James, D. J.

AU - Jeltema, T.

AU - Thomas, D.

PY - 2021/2/15

Y1 - 2021/2/15

N2 - We perform a joint analysis of the counts of redMaPPer clusters selected from the Dark Energy Survey (DES) year 1 data and multiwavelength follow-up data collected within the 2500 deg2 South Pole Telescope (SPT) Sunyaev-Zel'dovich (SZ) survey. The SPT follow-up data, calibrating the richness-mass relation of the optically selected redMaPPer catalog, enable the cosmological exploitation of the DES cluster abundance data. To explore possible systematics related to the modeling of projection effects, we consider two calibrations of the observational scatter on richness estimates: a simple Gaussian model which account only for the background contamination (BKG), and a model which further includes contamination and incompleteness due to projection effects (PRJ). Assuming either a ΛCDM+mν or wCDM+mν cosmology, and for both scatter models, we derive cosmological constraints consistent with multiple cosmological probes of the low and high redshift Universe, and in particular with the SPT cluster abundance data. This result demonstrates that the DES Y1 and SPT cluster counts provide consistent cosmological constraints, if the same mass calibration data set is adopted. It thus supports the conclusion of the DES Y1 cluster cosmology analysis which interprets the tension observed with other cosmological probes in terms of systematics affecting the stacked weak lensing analysis of optically selected low-richness clusters. Finally, we analyze the first combined optically SZ selected cluster catalog obtained by including the SPT sample above the maximum redshift probed by the DES Y1 redMaPPer sample (z=0.65). Besides providing a mild improvement of the cosmological constraints, this data combination serves as a stricter test of our scatter models: the PRJ model, providing scaling relations consistent between the two abundance and multiwavelength follow-up data, is favored over the BKG model.

AB - We perform a joint analysis of the counts of redMaPPer clusters selected from the Dark Energy Survey (DES) year 1 data and multiwavelength follow-up data collected within the 2500 deg2 South Pole Telescope (SPT) Sunyaev-Zel'dovich (SZ) survey. The SPT follow-up data, calibrating the richness-mass relation of the optically selected redMaPPer catalog, enable the cosmological exploitation of the DES cluster abundance data. To explore possible systematics related to the modeling of projection effects, we consider two calibrations of the observational scatter on richness estimates: a simple Gaussian model which account only for the background contamination (BKG), and a model which further includes contamination and incompleteness due to projection effects (PRJ). Assuming either a ΛCDM+mν or wCDM+mν cosmology, and for both scatter models, we derive cosmological constraints consistent with multiple cosmological probes of the low and high redshift Universe, and in particular with the SPT cluster abundance data. This result demonstrates that the DES Y1 and SPT cluster counts provide consistent cosmological constraints, if the same mass calibration data set is adopted. It thus supports the conclusion of the DES Y1 cluster cosmology analysis which interprets the tension observed with other cosmological probes in terms of systematics affecting the stacked weak lensing analysis of optically selected low-richness clusters. Finally, we analyze the first combined optically SZ selected cluster catalog obtained by including the SPT sample above the maximum redshift probed by the DES Y1 redMaPPer sample (z=0.65). Besides providing a mild improvement of the cosmological constraints, this data combination serves as a stricter test of our scatter models: the PRJ model, providing scaling relations consistent between the two abundance and multiwavelength follow-up data, is favored over the BKG model.

KW - RCUK

KW - STFC

UR - http://www.scopus.com/inward/record.url?scp=85101009744&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.103.043522

DO - 10.1103/PhysRevD.103.043522

M3 - Article

AN - SCOPUS:85101009744

VL - 103

JO - Physical Review D

JF - Physical Review D

SN - 1550-7998

IS - 4

M1 - 043522

ER -

ID: 27588609