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Weak Lensing Mass Calibration of the ACT DR5 Galaxy Clusters with the DES Year 3 Weak Lensing Data

Fuente: arXiv

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Main Authors:	Shin, T., Baxter, E. J., Lee, E., Battaglia, N., Alarcon, A., Amon, A., Becker, M., Bernstein, G., Bond, J. R., Campos, A., Chang, C., Chen, R., Choi, A., DeRose, J., Dodelson, S., Doux, C., Dunkley, J., Elvin-Poole, J., Esteves, J. H., Everett, S., Ferté, A., Gatti, M., Grandis, S., Gruen, D., Harrison, I., Hill, J. C., Hilton, M., Jarvis, M., MacCrann, N., McCullough, J., Moodley, K., Mroczkowski, T., Myles, J., Alsina, A. Navarro, Nicola, A., Page, L., Pandey, S., Prat, J., Raveri, M., Guachalla, B. Ried, Rollins, R. P., Sanchez, C., Secco, L. F., Sheldon, E., Sifón, C., Troxel, M., Tutusaus, I., von der Linden, A., Wollack, E., Yin, B., Aguena, M., Allam, S. S., Alves, O., Andrade-Oliveira, F., Bacon, D., Bocquet, S., Brooks, D., Camilleri, R., Rosell, A. Carnero, Carretero, J., Castander, F. J., Costanzi, M., da Costa, L., Pereira, M. E. da Silva, Davis, T., De Vicente, J., Desai, S., Flaugher, B., Frieman, J., Garcia-Bellido, J., Gutierrez, G., Hinton, S., Hollowood, D. L., Huterer, D., James, D., Lee, S., Marshall, J., Mena-Fernández, J., Menanteau, F., Miquel, R., Mohr, J., Muir, J., Ogando, R., Malagón, A. Plazas, Porredon, A., Romer, K., Sanchez, E., Cid, D. Sanchez, Sevilla, I., Smith, M., Soares-Santos, M., Suchyta, E., Swanson, M., To, C., Weaverdyck, N., Weller, J.
Format:	Preprint
Published:	2025
Subjects:	Cosmology and Nongalactic Astrophysics
Online Access:	Acceder al recurso
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author	Shin, T. Baxter, E. J. Lee, E. Battaglia, N. Alarcon, A. Amon, A. Becker, M. Bernstein, G. Bond, J. R. Campos, A. Chang, C. Chen, R. Choi, A. DeRose, J. Dodelson, S. Doux, C. Dunkley, J. Elvin-Poole, J. Esteves, J. H. Everett, S. Ferté, A. Gatti, M. Grandis, S. Gruen, D. Harrison, I. Hill, J. C. Hilton, M. Jarvis, M. MacCrann, N. McCullough, J. Moodley, K. Mroczkowski, T. Myles, J. Alsina, A. Navarro Nicola, A. Page, L. Pandey, S. Prat, J. Raveri, M. Guachalla, B. Ried Rollins, R. P. Sanchez, C. Secco, L. F. Sheldon, E. Sifón, C. Troxel, M. Tutusaus, I. von der Linden, A. Wollack, E. Yin, B. Aguena, M. Allam, S. S. Alves, O. Andrade-Oliveira, F. Bacon, D. Bocquet, S. Brooks, D. Camilleri, R. Rosell, A. Carnero Carretero, J. Castander, F. J. Costanzi, M. da Costa, L. Pereira, M. E. da Silva Davis, T. De Vicente, J. Desai, S. Flaugher, B. Frieman, J. Garcia-Bellido, J. Gutierrez, G. Hinton, S. Hollowood, D. L. Huterer, D. James, D. Lee, S. Marshall, J. Mena-Fernández, J. Menanteau, F. Miquel, R. Mohr, J. Muir, J. Ogando, R. Malagón, A. Plazas Porredon, A. Romer, K. Sanchez, E. Cid, D. Sanchez Sevilla, I. Smith, M. Soares-Santos, M. Suchyta, E. Swanson, M. To, C. Weaverdyck, N. Weller, J.
author_facet	Shin, T. Baxter, E. J. Lee, E. Battaglia, N. Alarcon, A. Amon, A. Becker, M. Bernstein, G. Bond, J. R. Campos, A. Chang, C. Chen, R. Choi, A. DeRose, J. Dodelson, S. Doux, C. Dunkley, J. Elvin-Poole, J. Esteves, J. H. Everett, S. Ferté, A. Gatti, M. Grandis, S. Gruen, D. Harrison, I. Hill, J. C. Hilton, M. Jarvis, M. MacCrann, N. McCullough, J. Moodley, K. Mroczkowski, T. Myles, J. Alsina, A. Navarro Nicola, A. Page, L. Pandey, S. Prat, J. Raveri, M. Guachalla, B. Ried Rollins, R. P. Sanchez, C. Secco, L. F. Sheldon, E. Sifón, C. Troxel, M. Tutusaus, I. von der Linden, A. Wollack, E. Yin, B. Aguena, M. Allam, S. S. Alves, O. Andrade-Oliveira, F. Bacon, D. Bocquet, S. Brooks, D. Camilleri, R. Rosell, A. Carnero Carretero, J. Castander, F. J. Costanzi, M. da Costa, L. Pereira, M. E. da Silva Davis, T. De Vicente, J. Desai, S. Flaugher, B. Frieman, J. Garcia-Bellido, J. Gutierrez, G. Hinton, S. Hollowood, D. L. Huterer, D. James, D. Lee, S. Marshall, J. Mena-Fernández, J. Menanteau, F. Miquel, R. Mohr, J. Muir, J. Ogando, R. Malagón, A. Plazas Porredon, A. Romer, K. Sanchez, E. Cid, D. Sanchez Sevilla, I. Smith, M. Soares-Santos, M. Suchyta, E. Swanson, M. To, C. Weaverdyck, N. Weller, J.
contents	We use weak gravitational lensing measurements from Year 3 Dark Energy Survey data to calibrate the masses of 443 galaxy clusters selected via the Sunyaev-Zel'dovich effect from Atacama Cosmology Telescope Data Release 5 maps of the cosmic microwave background. We incorporate redshift and SZ measurements for individual clusters into a hierarchical model for the stacked lensing signals and perform Bayesian analyses to constrain the hydrostatic mass bias of the clusters. Our treatment of systematic uncertainties includes a prescription for measuring and accounting for the weak lensing boost factor, consideration of a miscentering effect, as well as marginalization over uncertainties in the source galaxy photometric redshift distributions and shear calibration. The resultant constraints on the normalization of the mass-observable relation have a precision of approximately 7\%, with the mean WL halo mass of $M_{\rm 500c} = 5.4 \times 10^{14} M_{\odot}$. We measure the bias between the true cluster mass and the mass estimated from the SZ signal based on an X-ray--calibrated scaling relation assuming hydrostatic equilibrium, to be $1-b = 0.75^{+0.04}_{-0.06}$ over the full sample. When splitting the clusters into high ($z$=0.43-0.70) and low ($z$=0.15-0.43) redshift bins, we measure $1-b = 0.58^{+0.06}_{-0.05}$ and $0.82^{+0.07}_{-0.07}$, respectively. When introducing additional freedom in redshift and mass to the hydrostatic bias model, we find that $1-b$ decreases with redshift (with the power law of $-2.0^{+0.7}_{-0.4}$, 99.95\% confidence), consistent with findings from other recent studies, while we do not find any significant trend in mass. We also demonstrate that our result is robust against various systematics. The weak-lensing mass calibration presented in this study will be a useful tool for using the ACT clusters as probes of astrophysics and cosmology.
format	Preprint
id	arxiv_https___arxiv_org_abs_2512_18935
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	Weak Lensing Mass Calibration of the ACT DR5 Galaxy Clusters with the DES Year 3 Weak Lensing Data Shin, T. Baxter, E. J. Lee, E. Battaglia, N. Alarcon, A. Amon, A. Becker, M. Bernstein, G. Bond, J. R. Campos, A. Chang, C. Chen, R. Choi, A. DeRose, J. Dodelson, S. Doux, C. Dunkley, J. Elvin-Poole, J. Esteves, J. H. Everett, S. Ferté, A. Gatti, M. Grandis, S. Gruen, D. Harrison, I. Hill, J. C. Hilton, M. Jarvis, M. MacCrann, N. McCullough, J. Moodley, K. Mroczkowski, T. Myles, J. Alsina, A. Navarro Nicola, A. Page, L. Pandey, S. Prat, J. Raveri, M. Guachalla, B. Ried Rollins, R. P. Sanchez, C. Secco, L. F. Sheldon, E. Sifón, C. Troxel, M. Tutusaus, I. von der Linden, A. Wollack, E. Yin, B. Aguena, M. Allam, S. S. Alves, O. Andrade-Oliveira, F. Bacon, D. Bocquet, S. Brooks, D. Camilleri, R. Rosell, A. Carnero Carretero, J. Castander, F. J. Costanzi, M. da Costa, L. Pereira, M. E. da Silva Davis, T. De Vicente, J. Desai, S. Flaugher, B. Frieman, J. Garcia-Bellido, J. Gutierrez, G. Hinton, S. Hollowood, D. L. Huterer, D. James, D. Lee, S. Marshall, J. Mena-Fernández, J. Menanteau, F. Miquel, R. Mohr, J. Muir, J. Ogando, R. Malagón, A. Plazas Porredon, A. Romer, K. Sanchez, E. Cid, D. Sanchez Sevilla, I. Smith, M. Soares-Santos, M. Suchyta, E. Swanson, M. To, C. Weaverdyck, N. Weller, J. Cosmology and Nongalactic Astrophysics We use weak gravitational lensing measurements from Year 3 Dark Energy Survey data to calibrate the masses of 443 galaxy clusters selected via the Sunyaev-Zel'dovich effect from Atacama Cosmology Telescope Data Release 5 maps of the cosmic microwave background. We incorporate redshift and SZ measurements for individual clusters into a hierarchical model for the stacked lensing signals and perform Bayesian analyses to constrain the hydrostatic mass bias of the clusters. Our treatment of systematic uncertainties includes a prescription for measuring and accounting for the weak lensing boost factor, consideration of a miscentering effect, as well as marginalization over uncertainties in the source galaxy photometric redshift distributions and shear calibration. The resultant constraints on the normalization of the mass-observable relation have a precision of approximately 7\%, with the mean WL halo mass of $M_{\rm 500c} = 5.4 \times 10^{14} M_{\odot}$. We measure the bias between the true cluster mass and the mass estimated from the SZ signal based on an X-ray--calibrated scaling relation assuming hydrostatic equilibrium, to be $1-b = 0.75^{+0.04}_{-0.06}$ over the full sample. When splitting the clusters into high ($z$=0.43-0.70) and low ($z$=0.15-0.43) redshift bins, we measure $1-b = 0.58^{+0.06}_{-0.05}$ and $0.82^{+0.07}_{-0.07}$, respectively. When introducing additional freedom in redshift and mass to the hydrostatic bias model, we find that $1-b$ decreases with redshift (with the power law of $-2.0^{+0.7}_{-0.4}$, 99.95\% confidence), consistent with findings from other recent studies, while we do not find any significant trend in mass. We also demonstrate that our result is robust against various systematics. The weak-lensing mass calibration presented in this study will be a useful tool for using the ACT clusters as probes of astrophysics and cosmology.
title	Weak Lensing Mass Calibration of the ACT DR5 Galaxy Clusters with the DES Year 3 Weak Lensing Data
topic	Cosmology and Nongalactic Astrophysics
url	https://arxiv.org/abs/2512.18935