Dark Energy Survey Year 1 Results: Wide-field mass maps via forward fitting in harmonic space

B. Mawdsley; D. Bacon; C. Chang; P. Melchior; E. Rozo; S. Seitz; N. Jeffrey; M. Gatti; E. Gaztanaga; D. Gruen; W. G. Hartley; B. Hoyle; S. Samuroff; E. Sheldon; M. A. Troxel; J. Zuntz; T. M.C. Abbott; J. Annis; E. Bertin; S. L. Bridle; D. Brooks; E. Buckley-Geer; D. L. Burke; A. Carnero Rosell; M. Carrasco Kind; J. Carretero; L. N. da Costa; J. de Vicente; S. Desai; H. T. Diehl; P. Doel; A. E. Evrard; B. Flaugher; P. Fosalba; J. Frieman; J. García-Bellido; D. W. Gerdes; R. A. Gruendl; J. Gschwend; G. Gutierrez; D. L. Hollowood; K. Honscheid; D. J. James; M. Jarvis; T. Jeltema; K. Kuehn; N. Kuropatkin; M. Lima; M. A.G. Maia; J. L. Marshall; R. Miquel; A. A. Plazas; A. Roodman; E. Sanchez; V. Scarpine; S. Serrano; I. Sevilla-Noarbe; M. Smith; R. C. Smith; F. Sobreira; E. Suchyta; M. E.C. Swanson; G. Tarle; D. L. Tucker; V. Vikram; A. R. Walker

doi:10.1093/mnras/staa565

Dark Energy Survey Year 1 Results: Wide-field mass maps via forward fitting in harmonic space

B. Mawdsley, D. Bacon, C. Chang, P. Melchior, E. Rozo, S. Seitz, N. Jeffrey, M. Gatti, E. Gaztanaga, D. Gruen, W. G. Hartley, B. Hoyle, S. Samuroff, E. Sheldon, M. A. Troxel, J. Zuntz, T. M.C. Abbott, J. Annis, E. Bertin, S. L. BridleD. Brooks, E. Buckley-Geer, D. L. Burke, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, L. N. da Costa, J. de Vicente, S. Desai, H. T. Diehl, P. Doel, A. E. Evrard, B. Flaugher, P. Fosalba, J. Frieman, J. García-Bellido, D. W. Gerdes, R. A. Gruendl, J. Gschwend, G. Gutierrez, D. L. Hollowood, K. Honscheid, D. J. James, M. Jarvis, T. Jeltema, K. Kuehn, N. Kuropatkin, M. Lima, M. A.G. Maia, J. L. Marshall, R. Miquel, A. A. Plazas, A. Roodman, E. Sanchez, V. Scarpine, S. Serrano, I. Sevilla-Noarbe, M. Smith, R. C. Smith, F. Sobreira, E. Suchyta, M. E.C. Swanson, G. Tarle, D. L. Tucker, V. Vikram, A. R. Walker

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Abstract

We present new wide-field weak lensing mass maps for the Year 1 Dark Energy Survey (DES) data, generated via a forward fitting approach. This method of producing maps does not impose any prior constraints on the mass distribution to be reconstructed. The technique is found to improve the map reconstruction on the edges of the field compared to the conventional Kaiser–Squires method, which applies a direct inversion on the data; our approach is in good agreement with the previous direct approach in the central regions of the footprint. The mapping technique is assessed and verified with tests on simulations; together with the Kaiser–Squires method, the technique is then applied to data from the DES Year 1 data and the differences between the two methods are compared. We also produce the first DES measurements of the convergence Minkowski functionals and compare them to those measured in simulations.

Original language	English (US)
Pages (from-to)	5662-5679
Number of pages	18
Journal	Monthly Notices of the Royal Astronomical Society
Volume	493
Issue number	4
DOIs	https://doi.org/10.1093/mnras/staa565
State	Published - Apr 1 2021

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

Dark matter
Gravitational lensing: weak
Large-scale structure of Universe

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10.1093/mnras/staa565

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Mawdsley, B., Bacon, D., Chang, C., Melchior, P., Rozo, E., Seitz, S., Jeffrey, N., Gatti, M., Gaztanaga, E., Gruen, D., Hartley, W. G., Hoyle, B., Samuroff, S., Sheldon, E., Troxel, M. A., Zuntz, J., Abbott, T. M. C., Annis, J., Bertin, E., ... Walker, A. R. (2021). Dark Energy Survey Year 1 Results: Wide-field mass maps via forward fitting in harmonic space. Monthly Notices of the Royal Astronomical Society, 493(4), 5662-5679. https://doi.org/10.1093/mnras/staa565

@article{93c8187137d14b72a649081db8da21cd,

title = "Dark Energy Survey Year 1 Results: Wide-field mass maps via forward fitting in harmonic space",

abstract = "We present new wide-field weak lensing mass maps for the Year 1 Dark Energy Survey (DES) data, generated via a forward fitting approach. This method of producing maps does not impose any prior constraints on the mass distribution to be reconstructed. The technique is found to improve the map reconstruction on the edges of the field compared to the conventional Kaiser–Squires method, which applies a direct inversion on the data; our approach is in good agreement with the previous direct approach in the central regions of the footprint. The mapping technique is assessed and verified with tests on simulations; together with the Kaiser–Squires method, the technique is then applied to data from the DES Year 1 data and the differences between the two methods are compared. We also produce the first DES measurements of the convergence Minkowski functionals and compare them to those measured in simulations.",

keywords = "Dark matter, Gravitational lensing: weak, Large-scale structure of Universe",

author = "B. Mawdsley and D. Bacon and C. Chang and P. Melchior and E. Rozo and S. Seitz and N. Jeffrey and M. Gatti and E. Gaztanaga and D. Gruen and Hartley, {W. G.} and B. Hoyle and S. Samuroff and E. Sheldon and Troxel, {M. A.} and J. Zuntz and Abbott, {T. M.C.} and J. Annis and E. Bertin and Bridle, {S. L.} and D. Brooks and E. Buckley-Geer and Burke, {D. L.} and {Carnero Rosell}, A. and {Carrasco Kind}, M. and J. Carretero and {da Costa}, {L. N.} and {de Vicente}, J. and S. Desai and Diehl, {H. T.} and P. Doel and Evrard, {A. E.} and B. Flaugher and P. Fosalba and J. Frieman and J. Garc{\'i}a-Bellido and Gerdes, {D. W.} and Gruendl, {R. A.} and J. Gschwend and G. Gutierrez and Hollowood, {D. L.} and K. Honscheid and James, {D. J.} and M. Jarvis and T. Jeltema and K. Kuehn and N. Kuropatkin and M. Lima and Maia, {M. A.G.} and Marshall, {J. L.} and R. Miquel and Plazas, {A. A.} and A. Roodman and E. Sanchez and V. Scarpine and S. Serrano and I. Sevilla-Noarbe and M. Smith and Smith, {R. C.} and F. Sobreira and E. Suchyta and Swanson, {M. E.C.} and G. Tarle and Tucker, {D. L.} and V. Vikram and Walker, {A. R.}",

note = "Publisher Copyright: {\textcopyright} 2020 The Author(s)",

year = "2021",

month = apr,

day = "1",

doi = "10.1093/mnras/staa565",

language = "English (US)",

volume = "493",

pages = "5662--5679",

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

issn = "0035-8711",

publisher = "Oxford University Press",

number = "4",

}

Mawdsley, B, Bacon, D, Chang, C, Melchior, P, Rozo, E, Seitz, S, Jeffrey, N, Gatti, M, Gaztanaga, E, Gruen, D, Hartley, WG, Hoyle, B, Samuroff, S, Sheldon, E, Troxel, MA, Zuntz, J, Abbott, TMC, Annis, J, Bertin, E, Bridle, SL, Brooks, D, Buckley-Geer, E, Burke, DL, Carnero Rosell, A, Carrasco Kind, M, Carretero, J, da Costa, LN, de Vicente, J, Desai, S, Diehl, HT, Doel, P, Evrard, AE, Flaugher, B, Fosalba, P, Frieman, J, García-Bellido, J, Gerdes, DW, Gruendl, RA, Gschwend, J, Gutierrez, G, Hollowood, DL, Honscheid, K, James, DJ, Jarvis, M, Jeltema, T, Kuehn, K, Kuropatkin, N, Lima, M, Maia, MAG, Marshall, JL, Miquel, R, Plazas, AA, Roodman, A, Sanchez, E, Scarpine, V, Serrano, S, Sevilla-Noarbe, I, Smith, M, Smith, RC, Sobreira, F, Suchyta, E, Swanson, MEC, Tarle, G, Tucker, DL, Vikram, V & Walker, AR 2021, 'Dark Energy Survey Year 1 Results: Wide-field mass maps via forward fitting in harmonic space', Monthly Notices of the Royal Astronomical Society, vol. 493, no. 4, pp. 5662-5679. https://doi.org/10.1093/mnras/staa565

TY - JOUR

T1 - Dark Energy Survey Year 1 Results

T2 - Wide-field mass maps via forward fitting in harmonic space

AU - Mawdsley, B.

AU - Bacon, D.

AU - Chang, C.

AU - Melchior, P.

AU - Rozo, E.

AU - Seitz, S.

AU - Jeffrey, N.

AU - Gatti, M.

AU - Gaztanaga, E.

AU - Gruen, D.

AU - Hartley, W. G.

AU - Hoyle, B.

AU - Samuroff, S.

AU - Sheldon, E.

AU - Troxel, M. A.

AU - Zuntz, J.

AU - Abbott, T. M.C.

AU - Annis, J.

AU - Bertin, E.

AU - Bridle, S. L.

AU - Brooks, D.

AU - Buckley-Geer, E.

AU - Burke, D. L.

AU - Carnero Rosell, A.

AU - Carrasco Kind, M.

AU - Carretero, J.

AU - da Costa, L. N.

AU - de Vicente, J.

AU - Desai, S.

AU - Diehl, H. T.

AU - Doel, P.

AU - Evrard, A. E.

AU - Flaugher, B.

AU - Fosalba, P.

AU - Frieman, J.

AU - García-Bellido, J.

AU - Gerdes, D. W.

AU - Gruendl, R. A.

AU - Gschwend, J.

AU - Gutierrez, G.

AU - Hollowood, D. L.

AU - Honscheid, K.

AU - James, D. J.

AU - Jarvis, M.

AU - Jeltema, T.

AU - Kuehn, K.

AU - Kuropatkin, N.

AU - Lima, M.

AU - Maia, M. A.G.

AU - Marshall, J. L.

AU - Miquel, R.

AU - Plazas, A. A.

AU - Roodman, A.

AU - Sanchez, E.

AU - Scarpine, V.

AU - Serrano, S.

AU - Sevilla-Noarbe, I.

AU - Smith, M.

AU - Smith, R. C.

AU - Sobreira, F.

AU - Suchyta, E.

AU - Swanson, M. E.C.

AU - Tarle, G.

AU - Tucker, D. L.

AU - Vikram, V.

AU - Walker, A. R.

PY - 2021/4/1

Y1 - 2021/4/1

N2 - We present new wide-field weak lensing mass maps for the Year 1 Dark Energy Survey (DES) data, generated via a forward fitting approach. This method of producing maps does not impose any prior constraints on the mass distribution to be reconstructed. The technique is found to improve the map reconstruction on the edges of the field compared to the conventional Kaiser–Squires method, which applies a direct inversion on the data; our approach is in good agreement with the previous direct approach in the central regions of the footprint. The mapping technique is assessed and verified with tests on simulations; together with the Kaiser–Squires method, the technique is then applied to data from the DES Year 1 data and the differences between the two methods are compared. We also produce the first DES measurements of the convergence Minkowski functionals and compare them to those measured in simulations.

AB - We present new wide-field weak lensing mass maps for the Year 1 Dark Energy Survey (DES) data, generated via a forward fitting approach. This method of producing maps does not impose any prior constraints on the mass distribution to be reconstructed. The technique is found to improve the map reconstruction on the edges of the field compared to the conventional Kaiser–Squires method, which applies a direct inversion on the data; our approach is in good agreement with the previous direct approach in the central regions of the footprint. The mapping technique is assessed and verified with tests on simulations; together with the Kaiser–Squires method, the technique is then applied to data from the DES Year 1 data and the differences between the two methods are compared. We also produce the first DES measurements of the convergence Minkowski functionals and compare them to those measured in simulations.

KW - Dark matter

KW - Gravitational lensing: weak

KW - Large-scale structure of Universe

UR - http://www.scopus.com/inward/record.url?scp=85095015685&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85095015685&partnerID=8YFLogxK

U2 - 10.1093/mnras/staa565

DO - 10.1093/mnras/staa565

M3 - Article

AN - SCOPUS:85095015685

SN - 0035-8711

VL - 493

SP - 5662

EP - 5679

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 4

ER -

Dark Energy Survey Year 1 Results: Wide-field mass maps via forward fitting in harmonic space

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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