Dark Energy Survey Year 3 results: Cosmology with moments of weak lensing mass maps - Validation on simulations

M. Gatti; C. Chang; O. Friedrich; B. Jain; D. Bacon; M. Crocce; J. Derose; I. Ferrero; P. Fosalba; E. Gaztanaga; D. Gruen; I. Harrison; N. Jeffrey; N. MacCrann; T. McClintock; L. Secco; L. Whiteway; T. M.C. Abbott; S. Allam; J. Annis; S. Avila; D. Brooks; E. Buckley-Geer; D. L. Burke; A. Carnero Rosell; M. Carrasco Kind; J. Carretero; R. Cawthon; L. N. Da Costa; J. De Vicente; S. Desai; H. T. Diehl; P. Doel; T. F. Eifler; J. Estrada; S. Everett; A. E. Evrard; J. Frieman; J. Garciá-Bellido; D. W. Gerdes; R. A. Gruendl; J. Gschwend; G. Gutierrez; D. J. James; M. D. Johnson; E. Krause; K. Kuehn; M. Lima; M. A.G. Maia; M. March; J. L. Marshall; P. Melchior; F. Menanteau; R. Miquel; A. Palmese; F. Paz-Chinchón; A. A. Plazas; C. Sánchez; E. Sanchez; V. Scarpine; M. Schubnell; S. Santiago; I. Sevilla-Noarbe; M. Smith; M. Soares-Santos; E. Suchyta; M. E.C. Swanson; G. Tarle; D. Thomas; M. A. Troxel; J. Zuntz

doi:10.1093/mnras/staa2680

Dark Energy Survey Year 3 results: Cosmology with moments of weak lensing mass maps - Validation on simulations

M. Gatti, C. Chang, O. Friedrich, B. Jain, D. Bacon, M. Crocce, J. Derose, I. Ferrero, P. Fosalba, E. Gaztanaga, D. Gruen, I. Harrison, N. Jeffrey, N. MacCrann, T. McClintock, L. Secco, L. Whiteway, T. M.C. Abbott, S. Allam, J. AnnisS. Avila, D. Brooks, E. Buckley-Geer, D. L. Burke, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, R. Cawthon, L. N. Da Costa, J. De Vicente, S. Desai, H. T. Diehl, P. Doel, T. F. Eifler, J. Estrada, S. Everett, A. E. Evrard, J. Frieman, J. Garciá-Bellido, D. W. Gerdes, R. A. Gruendl, J. Gschwend, G. Gutierrez, D. J. James, M. D. Johnson, E. Krause, K. Kuehn, M. Lima, M. A.G. Maia, M. March, J. L. Marshall, P. Melchior, F. Menanteau, R. Miquel, A. Palmese, F. Paz-Chinchón, A. A. Plazas, C. Sánchez, E. Sanchez, V. Scarpine, M. Schubnell, S. Santiago, I. Sevilla-Noarbe, M. Smith, M. Soares-Santos, E. Suchyta, M. E.C. Swanson, G. Tarle, D. Thomas, M. A. Troxel, J. Zuntz

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Abstract

We present a simulated cosmology analysis using the second and third moments of the weak lensing mass (convergence) maps. The second moment, or variances, of the convergence as a function of smoothing scale contains information similar to standard shear two-point statistics. The third moment, or the skewness, contains additional non-Gaussian information. The analysis is geared towards the third year (Y3) data from the Dark Energy Survey (DES), but the methodology can be applied to other weak lensing data sets. We present the formalism for obtaining the convergence maps from the measured shear and for obtaining the second and third moments of these maps given partial sky coverage. We estimate the covariance matrix from a large suite of numerical simulations. We test our pipeline through a simulated likelihood analyses varying 5 cosmological parameters and 10 nuisance parameters and identify the scales where systematic or modelling uncertainties are not expected to affect the cosmological analysis. Our simulated likelihood analysis shows that the combination of second and third moments provides a 1.5 per cent constraint on S8 σ8(ωm/0.3)0.5 for DES Year 3 data. This is 20 per cent better than an analysis using a simulated DES Y3 shear two-point statistics, owing to the non-Gaussian information captured by the inclusion of higher order statistics. This paper validates our methodology for constraining cosmology with DES Year 3 data, which will be presented in a subsequent paper.

Original language	English
Pages (from-to)	4060-4087
Number of pages	28
Journal	Monthly Notices of the Royal Astronomical Society
Volume	498
Issue number	3
DOIs	https://doi.org/10.1093/mnras/staa2680
State	Published - Nov 1 2020

Funding

Funders	Funder number
National Science Foundation	1138766, 240672, 306478, 291329

Keywords

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

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10.1093/mnras/staa2680

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Gatti, M., Chang, C., Friedrich, O., Jain, B., Bacon, D., Crocce, M., Derose, J., Ferrero, I., Fosalba, P., Gaztanaga, E., Gruen, D., Harrison, I., Jeffrey, N., MacCrann, N., McClintock, T., Secco, L., Whiteway, L., Abbott, T. M. C., Allam, S., ... Zuntz, J. (2020). Dark Energy Survey Year 3 results: Cosmology with moments of weak lensing mass maps - Validation on simulations. Monthly Notices of the Royal Astronomical Society, 498(3), 4060-4087. https://doi.org/10.1093/mnras/staa2680

@article{89be63ead7b4445d8439d6291bdc62d9,

title = "Dark Energy Survey Year 3 results: Cosmology with moments of weak lensing mass maps - Validation on simulations",

abstract = "We present a simulated cosmology analysis using the second and third moments of the weak lensing mass (convergence) maps. The second moment, or variances, of the convergence as a function of smoothing scale contains information similar to standard shear two-point statistics. The third moment, or the skewness, contains additional non-Gaussian information. The analysis is geared towards the third year (Y3) data from the Dark Energy Survey (DES), but the methodology can be applied to other weak lensing data sets. We present the formalism for obtaining the convergence maps from the measured shear and for obtaining the second and third moments of these maps given partial sky coverage. We estimate the covariance matrix from a large suite of numerical simulations. We test our pipeline through a simulated likelihood analyses varying 5 cosmological parameters and 10 nuisance parameters and identify the scales where systematic or modelling uncertainties are not expected to affect the cosmological analysis. Our simulated likelihood analysis shows that the combination of second and third moments provides a 1.5 per cent constraint on S8 σ8(ωm/0.3)0.5 for DES Year 3 data. This is 20 per cent better than an analysis using a simulated DES Y3 shear two-point statistics, owing to the non-Gaussian information captured by the inclusion of higher order statistics. This paper validates our methodology for constraining cosmology with DES Year 3 data, which will be presented in a subsequent paper.",

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

author = "M. Gatti and C. Chang and O. Friedrich and B. Jain and D. Bacon and M. Crocce and J. Derose and I. Ferrero and P. Fosalba and E. Gaztanaga and D. Gruen and I. Harrison and N. Jeffrey and N. MacCrann and T. McClintock and L. Secco and L. Whiteway and Abbott, {T. M.C.} and S. Allam and J. Annis and S. Avila and D. Brooks and E. Buckley-Geer and Burke, {D. L.} and {Carnero Rosell}, A. and {Carrasco Kind}, M. and J. Carretero and R. Cawthon and {Da Costa}, {L. N.} and {De Vicente}, J. and S. Desai and Diehl, {H. T.} and P. Doel and Eifler, {T. F.} and J. Estrada and S. Everett and Evrard, {A. E.} and J. Frieman and J. Garci{\'a}-Bellido and Gerdes, {D. W.} and Gruendl, {R. A.} and J. Gschwend and G. Gutierrez and James, {D. J.} and Johnson, {M. D.} and E. Krause and K. Kuehn and M. Lima and Maia, {M. A.G.} and M. March and Marshall, {J. L.} and P. Melchior and F. Menanteau and R. Miquel and A. Palmese and F. Paz-Chinch{\'o}n and Plazas, {A. A.} and C. S{\'a}nchez and E. Sanchez and V. Scarpine and M. Schubnell and S. Santiago and I. Sevilla-Noarbe and M. Smith and M. Soares-Santos and E. Suchyta and Swanson, {M. E.C.} and G. Tarle and D. Thomas and Troxel, {M. A.} and J. Zuntz",

note = "Publisher Copyright: {\textcopyright} 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society.",

year = "2020",

month = nov,

day = "1",

doi = "10.1093/mnras/staa2680",

language = "English",

volume = "498",

pages = "4060--4087",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

number = "3",

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Gatti, M, Chang, C, Friedrich, O, Jain, B, Bacon, D, Crocce, M, Derose, J, Ferrero, I, Fosalba, P, Gaztanaga, E, Gruen, D, Harrison, I, Jeffrey, N, MacCrann, N, McClintock, T, Secco, L, Whiteway, L, Abbott, TMC, Allam, S, Annis, J, Avila, S, Brooks, D, Buckley-Geer, E, Burke, DL, Carnero Rosell, A, Carrasco Kind, M, Carretero, J, Cawthon, R, Da Costa, LN, De Vicente, J, Desai, S, Diehl, HT, Doel, P, Eifler, TF, Estrada, J, Everett, S, Evrard, AE, Frieman, J, Garciá-Bellido, J, Gerdes, DW, Gruendl, RA, Gschwend, J, Gutierrez, G, James, DJ, Johnson, MD, Krause, E, Kuehn, K, Lima, M, Maia, MAG, March, M, Marshall, JL, Melchior, P, Menanteau, F, Miquel, R, Palmese, A, Paz-Chinchón, F, Plazas, AA, Sánchez, C, Sanchez, E, Scarpine, V, Schubnell, M, Santiago, S, Sevilla-Noarbe, I, Smith, M, Soares-Santos, M, Suchyta, E, Swanson, MEC, Tarle, G, Thomas, D, Troxel, MA & Zuntz, J 2020, 'Dark Energy Survey Year 3 results: Cosmology with moments of weak lensing mass maps - Validation on simulations', Monthly Notices of the Royal Astronomical Society, vol. 498, no. 3, pp. 4060-4087. https://doi.org/10.1093/mnras/staa2680

TY - JOUR

T1 - Dark Energy Survey Year 3 results

T2 - Cosmology with moments of weak lensing mass maps - Validation on simulations

AU - Gatti, M.

AU - Chang, C.

AU - Friedrich, O.

AU - Jain, B.

AU - Bacon, D.

AU - Crocce, M.

AU - Derose, J.

AU - Ferrero, I.

AU - Fosalba, P.

AU - Gaztanaga, E.

AU - Gruen, D.

AU - Harrison, I.

AU - Jeffrey, N.

AU - MacCrann, N.

AU - McClintock, T.

AU - Secco, L.

AU - Whiteway, L.

AU - Abbott, T. M.C.

AU - Allam, S.

AU - Annis, J.

AU - Avila, S.

AU - Brooks, D.

AU - Buckley-Geer, E.

AU - Burke, D. L.

AU - Carnero Rosell, A.

AU - Carrasco Kind, M.

AU - Carretero, J.

AU - Cawthon, R.

AU - Da Costa, L. N.

AU - De Vicente, J.

AU - Desai, S.

AU - Diehl, H. T.

AU - Doel, P.

AU - Eifler, T. F.

AU - Estrada, J.

AU - Everett, S.

AU - Evrard, A. E.

AU - Frieman, J.

AU - Garciá-Bellido, J.

AU - Gerdes, D. W.

AU - Gruendl, R. A.

AU - Gschwend, J.

AU - Gutierrez, G.

AU - James, D. J.

AU - Johnson, M. D.

AU - Krause, E.

AU - Kuehn, K.

AU - Lima, M.

AU - Maia, M. A.G.

AU - March, M.

AU - Marshall, J. L.

AU - Melchior, P.

AU - Menanteau, F.

AU - Miquel, R.

AU - Palmese, A.

AU - Paz-Chinchón, F.

AU - Plazas, A. A.

AU - Sánchez, C.

AU - Sanchez, E.

AU - Scarpine, V.

AU - Schubnell, M.

AU - Santiago, S.

AU - Sevilla-Noarbe, I.

AU - Smith, M.

AU - Soares-Santos, M.

AU - Suchyta, E.

AU - Swanson, M. E.C.

AU - Tarle, G.

AU - Thomas, D.

AU - Troxel, M. A.

AU - Zuntz, J.

PY - 2020/11/1

Y1 - 2020/11/1

N2 - We present a simulated cosmology analysis using the second and third moments of the weak lensing mass (convergence) maps. The second moment, or variances, of the convergence as a function of smoothing scale contains information similar to standard shear two-point statistics. The third moment, or the skewness, contains additional non-Gaussian information. The analysis is geared towards the third year (Y3) data from the Dark Energy Survey (DES), but the methodology can be applied to other weak lensing data sets. We present the formalism for obtaining the convergence maps from the measured shear and for obtaining the second and third moments of these maps given partial sky coverage. We estimate the covariance matrix from a large suite of numerical simulations. We test our pipeline through a simulated likelihood analyses varying 5 cosmological parameters and 10 nuisance parameters and identify the scales where systematic or modelling uncertainties are not expected to affect the cosmological analysis. Our simulated likelihood analysis shows that the combination of second and third moments provides a 1.5 per cent constraint on S8 σ8(ωm/0.3)0.5 for DES Year 3 data. This is 20 per cent better than an analysis using a simulated DES Y3 shear two-point statistics, owing to the non-Gaussian information captured by the inclusion of higher order statistics. This paper validates our methodology for constraining cosmology with DES Year 3 data, which will be presented in a subsequent paper.

AB - We present a simulated cosmology analysis using the second and third moments of the weak lensing mass (convergence) maps. The second moment, or variances, of the convergence as a function of smoothing scale contains information similar to standard shear two-point statistics. The third moment, or the skewness, contains additional non-Gaussian information. The analysis is geared towards the third year (Y3) data from the Dark Energy Survey (DES), but the methodology can be applied to other weak lensing data sets. We present the formalism for obtaining the convergence maps from the measured shear and for obtaining the second and third moments of these maps given partial sky coverage. We estimate the covariance matrix from a large suite of numerical simulations. We test our pipeline through a simulated likelihood analyses varying 5 cosmological parameters and 10 nuisance parameters and identify the scales where systematic or modelling uncertainties are not expected to affect the cosmological analysis. Our simulated likelihood analysis shows that the combination of second and third moments provides a 1.5 per cent constraint on S8 σ8(ωm/0.3)0.5 for DES Year 3 data. This is 20 per cent better than an analysis using a simulated DES Y3 shear two-point statistics, owing to the non-Gaussian information captured by the inclusion of higher order statistics. This paper validates our methodology for constraining cosmology with DES Year 3 data, which will be presented in a subsequent paper.

KW - cosmology: observations

KW - gravitational lensing: weak

KW - large-scale structure of Universe

UR - http://www.scopus.com/inward/record.url?scp=85096850571&partnerID=8YFLogxK

U2 - 10.1093/mnras/staa2680

DO - 10.1093/mnras/staa2680

M3 - Review article

AN - SCOPUS:85096850571

SN - 0035-8711

VL - 498

SP - 4060

EP - 4087

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 3

ER -

Dark Energy Survey Year 3 results: Cosmology with moments of weak lensing mass maps - Validation on simulations

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