ACT-DR5 Sunyaev-Zel’dovich clusters: Weak lensing mass calibration with KiDS

Naomi Clare Robertson; Cristóbal Sifón; Marika Asgari; Nicholas Battaglia; Maciej Bilicki; John Richard Bond; Mark J. Devlin; Jo Dunkley; Benjamin Giblin; Catherine Heymans; Hendrik Hildebrandt; Matt Hilton; Henk Hoekstra; John P. Hughes; Konrad Kuijken; Thibaut Louis; Maya Mallaby-Kay; Lyman Page; Bruce Partridge; Mario Radovich; Peter Schneider; Huan Yuan Shan; David N. Spergel; Tilman Tröster; Edward J. Wollack; Cristian Vargas; Angus H. Wright

doi:10.1051/0004-6361/202346712

ACT-DR5 Sunyaev-Zel’dovich clusters: Weak lensing mass calibration with KiDS

Naomi Clare Robertson, Cristóbal Sifón, Marika Asgari, Nicholas Battaglia, Maciej Bilicki, John Richard Bond, Mark J. Devlin, Jo Dunkley, Benjamin Giblin, Catherine Heymans, Hendrik Hildebrandt, Matt Hilton, Henk Hoekstra, John P. Hughes, Konrad Kuijken, Thibaut Louis, Maya Mallaby-Kay, Lyman Page, Bruce Partridge, Mario RadovichPeter Schneider, Huan Yuan Shan, David N. Spergel, Tilman Tröster, Edward J. Wollack, Cristian Vargas, Angus H. Wright

Research output: Contribution to journal › Article › peer-review

Abstract

We present Weak Gravitational Lensing measurements of a sample of 157 clusters within the Kilo Degree Survey (KiDS), detected with a >5σ thermal Sunyaev-Zel’dovich (SZ) signal by the Atacama Cosmology Telescope (ACT). Using a halo-model approach, we constrained the average total cluster mass, M_WL, accounting for the ACT cluster selection function of the full sample. We find that the SZ cluster mass estimate M_SZ, which was calibrated using X-ray observations, is biased with M_SZ/M_WL = (1 − b_SZ) = 0.65 ± 0.05. Separating the sample into six mass bins, we find no evidence of a strong mass dependency for the mass bias, (1 − b_SZ). Adopting this ACT-KiDS SZ mass calibration would bring the Planck SZ cluster count into agreement with the counts expected from the Planck cosmic microwave background ΛCDM cosmological model, although it should be noted that the cluster sample considered in this work has a lower average mass M_SZ,uncor = 3.64 × 10¹⁴ M compared to the Planck cluster sample which has an average mass in the range M_SZ,uncor = (5.5−8.5) × 10¹⁴ M , depending on the sub-sample used.

Original language	English (US)
Article number	A87
Journal	Astronomy and Astrophysics
Volume	681
DOIs	https://doi.org/10.1051/0004-6361/202346712
State	Published - Jan 1 2024

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

cosmology: observations
gravitational lensing: weak
large-scale structure of Universe

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10.1051/0004-6361/202346712

Cite this

Robertson, N. C., Sifón, C., Asgari, M., Battaglia, N., Bilicki, M., Bond, J. R., Devlin, M. J., Dunkley, J., Giblin, B., Heymans, C., Hildebrandt, H., Hilton, M., Hoekstra, H., Hughes, J. P., Kuijken, K., Louis, T., Mallaby-Kay, M., Page, L., Partridge, B., ... Wright, A. H. (2024). ACT-DR5 Sunyaev-Zel’dovich clusters: Weak lensing mass calibration with KiDS. Astronomy and Astrophysics, 681, Article A87. https://doi.org/10.1051/0004-6361/202346712

@article{bfc4a5b48d7d481eb7d12284632539c6,

title = "ACT-DR5 Sunyaev-Zel{\textquoteright}dovich clusters: Weak lensing mass calibration with KiDS",

abstract = "We present Weak Gravitational Lensing measurements of a sample of 157 clusters within the Kilo Degree Survey (KiDS), detected with a >5σ thermal Sunyaev-Zel{\textquoteright}dovich (SZ) signal by the Atacama Cosmology Telescope (ACT). Using a halo-model approach, we constrained the average total cluster mass, MWL, accounting for the ACT cluster selection function of the full sample. We find that the SZ cluster mass estimate MSZ, which was calibrated using X-ray observations, is biased with MSZ/MWL = (1 − bSZ) = 0.65 ± 0.05. Separating the sample into six mass bins, we find no evidence of a strong mass dependency for the mass bias, (1 − bSZ). Adopting this ACT-KiDS SZ mass calibration would bring the Planck SZ cluster count into agreement with the counts expected from the Planck cosmic microwave background ΛCDM cosmological model, although it should be noted that the cluster sample considered in this work has a lower average mass MSZ,uncor = 3.64 × 1014 M compared to the Planck cluster sample which has an average mass in the range MSZ,uncor = (5.5−8.5) × 1014 M , depending on the sub-sample used.",

keywords = "cosmology: observations, gravitational lensing: weak, large-scale structure of Universe",

author = "Robertson, {Naomi Clare} and Crist{\'o}bal Sif{\'o}n and Marika Asgari and Nicholas Battaglia and Maciej Bilicki and Bond, {John Richard} and Devlin, {Mark J.} and Jo Dunkley and Benjamin Giblin and Catherine Heymans and Hendrik Hildebrandt and Matt Hilton and Henk Hoekstra and Hughes, {John P.} and Konrad Kuijken and Thibaut Louis and Maya Mallaby-Kay and Lyman Page and Bruce Partridge and Mario Radovich and Peter Schneider and Shan, {Huan Yuan} and Spergel, {David N.} and Tilman Tr{\"o}ster and Wollack, {Edward J.} and Cristian Vargas and Wright, {Angus H.}",

note = "Publisher Copyright: c The Authors 2024.",

year = "2024",

month = jan,

day = "1",

doi = "10.1051/0004-6361/202346712",

language = "English (US)",

volume = "681",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

publisher = "EDP Sciences",

}

Robertson, NC, Sifón, C, Asgari, M, Battaglia, N, Bilicki, M, Bond, JR, Devlin, MJ, Dunkley, J, Giblin, B, Heymans, C, Hildebrandt, H, Hilton, M, Hoekstra, H, Hughes, JP, Kuijken, K, Louis, T, Mallaby-Kay, M, Page, L, Partridge, B, Radovich, M, Schneider, P, Shan, HY, Spergel, DN, Tröster, T, Wollack, EJ, Vargas, C & Wright, AH 2024, 'ACT-DR5 Sunyaev-Zel’dovich clusters: Weak lensing mass calibration with KiDS', Astronomy and Astrophysics, vol. 681, A87. https://doi.org/10.1051/0004-6361/202346712

TY - JOUR

T1 - ACT-DR5 Sunyaev-Zel’dovich clusters

T2 - Weak lensing mass calibration with KiDS

AU - Robertson, Naomi Clare

AU - Sifón, Cristóbal

AU - Asgari, Marika

AU - Battaglia, Nicholas

AU - Bilicki, Maciej

AU - Bond, John Richard

AU - Devlin, Mark J.

AU - Dunkley, Jo

AU - Giblin, Benjamin

AU - Heymans, Catherine

AU - Hildebrandt, Hendrik

AU - Hilton, Matt

AU - Hoekstra, Henk

AU - Hughes, John P.

AU - Kuijken, Konrad

AU - Louis, Thibaut

AU - Mallaby-Kay, Maya

AU - Page, Lyman

AU - Partridge, Bruce

AU - Radovich, Mario

AU - Schneider, Peter

AU - Shan, Huan Yuan

AU - Spergel, David N.

AU - Tröster, Tilman

AU - Wollack, Edward J.

AU - Vargas, Cristian

AU - Wright, Angus H.

PY - 2024/1/1

Y1 - 2024/1/1

N2 - We present Weak Gravitational Lensing measurements of a sample of 157 clusters within the Kilo Degree Survey (KiDS), detected with a >5σ thermal Sunyaev-Zel’dovich (SZ) signal by the Atacama Cosmology Telescope (ACT). Using a halo-model approach, we constrained the average total cluster mass, MWL, accounting for the ACT cluster selection function of the full sample. We find that the SZ cluster mass estimate MSZ, which was calibrated using X-ray observations, is biased with MSZ/MWL = (1 − bSZ) = 0.65 ± 0.05. Separating the sample into six mass bins, we find no evidence of a strong mass dependency for the mass bias, (1 − bSZ). Adopting this ACT-KiDS SZ mass calibration would bring the Planck SZ cluster count into agreement with the counts expected from the Planck cosmic microwave background ΛCDM cosmological model, although it should be noted that the cluster sample considered in this work has a lower average mass MSZ,uncor = 3.64 × 1014 M compared to the Planck cluster sample which has an average mass in the range MSZ,uncor = (5.5−8.5) × 1014 M , depending on the sub-sample used.

AB - We present Weak Gravitational Lensing measurements of a sample of 157 clusters within the Kilo Degree Survey (KiDS), detected with a >5σ thermal Sunyaev-Zel’dovich (SZ) signal by the Atacama Cosmology Telescope (ACT). Using a halo-model approach, we constrained the average total cluster mass, MWL, accounting for the ACT cluster selection function of the full sample. We find that the SZ cluster mass estimate MSZ, which was calibrated using X-ray observations, is biased with MSZ/MWL = (1 − bSZ) = 0.65 ± 0.05. Separating the sample into six mass bins, we find no evidence of a strong mass dependency for the mass bias, (1 − bSZ). Adopting this ACT-KiDS SZ mass calibration would bring the Planck SZ cluster count into agreement with the counts expected from the Planck cosmic microwave background ΛCDM cosmological model, although it should be noted that the cluster sample considered in this work has a lower average mass MSZ,uncor = 3.64 × 1014 M compared to the Planck cluster sample which has an average mass in the range MSZ,uncor = (5.5−8.5) × 1014 M , depending on the sub-sample used.

KW - cosmology: observations

KW - gravitational lensing: weak

KW - large-scale structure of Universe

UR - http://www.scopus.com/inward/record.url?scp=85184151993&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85184151993&partnerID=8YFLogxK

U2 - 10.1051/0004-6361/202346712

DO - 10.1051/0004-6361/202346712

M3 - Article

AN - SCOPUS:85184151993

SN - 0004-6361

VL - 681

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

M1 - A87

ER -

ACT-DR5 Sunyaev-Zel’dovich clusters: Weak lensing mass calibration with KiDS

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