Dark Energy Survey year 1 results: curved-sky weak lensing mass map

C. Chang; A. Pujol; B. Mawdsley; D. Bacon; J. Elvin-Poole; P. Melchior; A. Kovács; B. Jain; B. Leistedt; T. Giannantonio; A. Alarcon; E. Baxter; K. Bechtol; M. R. Becker; A. Benoit-Lévy; G. M. Bernstein; C. Bonnett; M. T. Busha; A. Carnero Rosell; F. J. Castander; R. Cawthon; L. N. da Costa; C. Davis; J. De Vicente; J. DeRose; A. Drlica-Wagner; P. Fosalba; M. Gatti; E. Gaztanaga; D. Gruen; J. Gschwend; W. G. Hartley; B. Hoyle; E. M. Huff; M. Jarvis; N. Jeffrey; T. Kacprzak; H. Lin; N. MacCrann; M. A. G. Maia; R. L. C. Ogando; J. Prat; M. M. Rau; R. P. Rollins; A. Roodman; E. Rozo; E. S. Rykoff; S. Samuroff; C. Sánchez; I. Sevilla-Noarbe; E. Sheldon; M. A. Troxel; T. N. Varga; P. Vielzeuf; V. Vikram; R. H. Wechsler; J. Zuntz; T. M. C. Abbott; F. B. Abdalla; S. Allam; J. Annis; E. Bertin; D. Brooks; E. Buckley-Geer; D. L. Burke; M. Carrasco Kind; J. Carretero; M. Crocce; C. E. Cunha; C. B. D'Andrea; S. Desai; H. T. Diehl; J. P. Dietrich; P. Doel; J. Estrada; A. Fausti Neto; E. Fernandez; B. Flaugher; J. Frieman; J. García-Bellido; R. A. Gruendl; G. Gutierrez; K. Honscheid; D. J. James; T. Jeltema; M. W. G. Johnson; M. D. Johnson; S. Kent; D. Kirk; E. Krause; K. Kuehn; S. Kuhlmann; O. Lahav; T. S. Li; M. Lima; M. March; P. Martini; F. Menanteau; R. Miquel; J. J. Mohr; E. Neilsen; R. C. Nichol; D. Petravick; A. A. Plazas; A. K. Romer; M. Sako; E. Sanchez; V. Scarpine; M. Schubnell; Matthew Smith; R. C. Smith; M. Soares-Santos; F. Sobreira; E. Suchyta; G. Tarle; D. Thomas; D. L. Tucker; A. R. Walker; W. Wester; Y. Zhang

doi:10.1093/mnras/stx3363

Dark Energy Survey year 1 results: curved-sky weak lensing mass map

C. Chang, A. Pujol, B. Mawdsley, D. Bacon, J. Elvin-Poole, P. Melchior, A. Kovács, B. Jain, B. Leistedt, T. Giannantonio, A. Alarcon, E. Baxter, K. Bechtol, M. R. Becker, A. Benoit-Lévy, G. M. Bernstein, C. Bonnett, M. T. Busha, A. Carnero Rosell, F. J. CastanderR. Cawthon, L. N. da Costa, C. Davis, J. De Vicente, J. DeRose, A. Drlica-Wagner, P. Fosalba, M. Gatti, E. Gaztanaga, D. Gruen, J. Gschwend, W. G. Hartley, B. Hoyle, E. M. Huff, M. Jarvis, N. Jeffrey, T. Kacprzak, H. Lin, N. MacCrann, M. A. G. Maia, R. L. C. Ogando, J. Prat, M. M. Rau, R. P. Rollins, A. Roodman, E. Rozo, E. S. Rykoff, S. Samuroff, C. Sánchez, I. Sevilla-Noarbe, E. Sheldon, M. A. Troxel, T. N. Varga, P. Vielzeuf, V. Vikram, R. H. Wechsler, J. Zuntz, T. M. C. Abbott, F. B. Abdalla, S. Allam, J. Annis, E. Bertin, D. Brooks, E. Buckley-Geer, D. L. Burke, M. Carrasco Kind, J. Carretero, M. Crocce, C. E. Cunha, C. B. D'Andrea, S. Desai, H. T. Diehl, J. P. Dietrich, P. Doel, J. Estrada, A. Fausti Neto, E. Fernandez, B. Flaugher, J. Frieman, J. García-Bellido, R. A. Gruendl, G. Gutierrez, K. Honscheid, D. J. James, T. Jeltema, M. W. G. Johnson, M. D. Johnson, S. Kent, D. Kirk, E. Krause, K. Kuehn, S. Kuhlmann, O. Lahav, T. S. Li, M. Lima, M. March, P. Martini, F. Menanteau, R. Miquel, J. J. Mohr, E. Neilsen, R. C. Nichol, D. Petravick, A. A. Plazas, A. K. Romer, M. Sako, E. Sanchez, V. Scarpine, M. Schubnell, Matthew Smith, R. C. Smith, M. Soares-Santos, F. Sobreira, E. Suchyta, G. Tarle, D. Thomas, D. L. Tucker, A. R. Walker, W. Wester, Y. Zhang

Institute of Cosmology & Gravitation

University of Southampton

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Abstract

We construct the largest curved-sky galaxy weak lensing mass map to date from the DES first-year (DES Y1) data. The map, about 10 times larger than previous work, is constructed over a contiguous ≈1,500deg2, covering a comoving volume of ≈10Gpc3. The effects of masking, sampling, and noise are tested using simulations. We generate weak lensing maps from two DES Y1 shear catalogs, Metacalibration and Im3shape, with sources at redshift 0.2<z<1.3, and in each of four bins in this range. In the highest signal-to-noise map, the ratio between the mean signal-to-noise in the E-mode and the B-mode map is ∼1.5 (∼2) when smoothed with a Gaussian filter of σG=30 (80) arcminutes. The second and third moments of the convergence κ in the maps are in agreement with simulations. We also find no significant correlation of κ with maps of potential systematic contaminants. Finally, we demonstrate two applications of the mass maps: (1) cross-correlation with different foreground tracers of mass and (2) exploration of the largest peaks and voids in the maps.

Original language	English
Journal	Monthly Notices of the Royal Astronomical Society
Early online date	4 Jan 2018
DOIs	https://doi.org/10.1093/mnras/stx3363
Publication status	Early online - 4 Jan 2018

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astro-ph.CO
RCUK
STFC

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10.1093/mnras/stx3363

Dark Energy Survey year 1 results
This is a pre-copyedited, author-produced PDF of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The version of record C Chang, A Pujol, B Mawdsley, D Bacon, et.al., Dark Energy Survey Year 1 Results: Curved-Sky Weak Lensing Mass Map, Monthly Notices of the Royal Astronomical Society, , stx3363, https://doi.org/10.1093/mnras/stx3363 is available online at: https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stx3363/4788801
Accepted author manuscript (Post-print), 3.62 MB

https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stx3363/4788801

Years worth of data released in bid to map out the universe and help scientists learn more about dark energy
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11/01/18
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Chang, C., Pujol, A., Mawdsley, B., Bacon, D., Elvin-Poole, J., Melchior, P., Kovács, A., Jain, B., Leistedt, B., Giannantonio, T., Alarcon, A., Baxter, E., Bechtol, K., Becker, M. R., Benoit-Lévy, A., Bernstein, G. M., Bonnett, C., Busha, M. T., Rosell, A. C., ... Zhang, Y. (2018). Dark Energy Survey year 1 results: curved-sky weak lensing mass map. Monthly Notices of the Royal Astronomical Society. Advance online publication. https://doi.org/10.1093/mnras/stx3363

@article{846efca2e51248aa8b6bb4f4ab870ad5,

title = "Dark Energy Survey year 1 results: curved-sky weak lensing mass map",

abstract = "We construct the largest curved-sky galaxy weak lensing mass map to date from the DES first-year (DES Y1) data. The map, about 10 times larger than previous work, is constructed over a contiguous ≈1,500deg2, covering a comoving volume of ≈10Gpc3. The effects of masking, sampling, and noise are tested using simulations. We generate weak lensing maps from two DES Y1 shear catalogs, Metacalibration and Im3shape, with sources at redshift 0.2<z<1.3, and in each of four bins in this range. In the highest signal-to-noise map, the ratio between the mean signal-to-noise in the E-mode and the B-mode map is ∼1.5 (∼2) when smoothed with a Gaussian filter of σG=30 (80) arcminutes. The second and third moments of the convergence κ in the maps are in agreement with simulations. We also find no significant correlation of κ with maps of potential systematic contaminants. Finally, we demonstrate two applications of the mass maps: (1) cross-correlation with different foreground tracers of mass and (2) exploration of the largest peaks and voids in the maps.",

keywords = "astro-ph.CO, RCUK, STFC",

author = "C. Chang and A. Pujol and B. Mawdsley and D. Bacon and J. Elvin-Poole and P. Melchior and A. Kov{\'a}cs and B. Jain and B. Leistedt and T. Giannantonio and A. Alarcon and E. Baxter and K. Bechtol and Becker, {M. R.} and A. Benoit-L{\'e}vy and Bernstein, {G. M.} and C. Bonnett and Busha, {M. T.} and Rosell, {A. Carnero} and Castander, {F. J.} and R. Cawthon and Costa, {L. N. da} and C. Davis and Vicente, {J. De} and J. DeRose and A. Drlica-Wagner and P. Fosalba and M. Gatti and E. Gaztanaga and D. Gruen and J. Gschwend and Hartley, {W. G.} and B. Hoyle and Huff, {E. M.} and M. Jarvis and N. Jeffrey and T. Kacprzak and H. Lin and N. MacCrann and Maia, {M. A. G.} and Ogando, {R. L. C.} and J. Prat and Rau, {M. M.} and Rollins, {R. P.} and A. Roodman and E. Rozo and Rykoff, {E. S.} and S. Samuroff and C. S{\'a}nchez and I. Sevilla-Noarbe and E. Sheldon and Troxel, {M. A.} and Varga, {T. N.} and P. Vielzeuf and V. Vikram and Wechsler, {R. H.} and J. Zuntz and Abbott, {T. M. C.} and Abdalla, {F. B.} and S. Allam and J. Annis and E. Bertin and D. Brooks and E. Buckley-Geer and Burke, {D. L.} and Kind, {M. Carrasco} and J. Carretero and M. Crocce and Cunha, {C. E.} and D'Andrea, {C. B.} and S. Desai and Diehl, {H. T.} and Dietrich, {J. P.} and P. Doel and J. Estrada and Neto, {A. Fausti} and E. Fernandez and B. Flaugher and J. Frieman and J. Garc{\'i}a-Bellido and Gruendl, {R. A.} and G. Gutierrez and K. Honscheid and James, {D. J.} and T. Jeltema and Johnson, {M. W. G.} and Johnson, {M. D.} and S. Kent and D. Kirk and E. Krause and K. Kuehn and S. Kuhlmann and O. Lahav and Li, {T. S.} and M. Lima and M. March and P. Martini and F. Menanteau and R. Miquel and Mohr, {J. J.} and E. Neilsen and Nichol, {R. C.} and D. Petravick and Plazas, {A. A.} and Romer, {A. K.} and M. Sako and E. Sanchez and V. Scarpine and M. Schubnell and Matthew Smith and Smith, {R. C.} and M. Soares-Santos and F. Sobreira and E. Suchyta and G. Tarle and D. Thomas and Tucker, {D. L.} and Walker, {A. R.} and W. Wester and Y. Zhang",

year = "2018",

month = jan,

day = "4",

doi = "10.1093/mnras/stx3363",

language = "English",

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

issn = "0035-8711",

publisher = "Oxford University Press",

}

Chang, C, Pujol, A, Mawdsley, B, Bacon, D, Elvin-Poole, J, Melchior, P, Kovács, A, Jain, B, Leistedt, B, Giannantonio, T, Alarcon, A, Baxter, E, Bechtol, K, Becker, MR, Benoit-Lévy, A, Bernstein, GM, Bonnett, C, Busha, MT, Rosell, AC, Castander, FJ, Cawthon, R, Costa, LND, Davis, C, Vicente, JD, DeRose, J, Drlica-Wagner, A, Fosalba, P, Gatti, M, Gaztanaga, E, Gruen, D, Gschwend, J, Hartley, WG, Hoyle, B, Huff, EM, Jarvis, M, Jeffrey, N, Kacprzak, T, Lin, H, MacCrann, N, Maia, MAG, Ogando, RLC, Prat, J, Rau, MM, Rollins, RP, Roodman, A, Rozo, E, Rykoff, ES, Samuroff, S, Sánchez, C, Sevilla-Noarbe, I, Sheldon, E, Troxel, MA, Varga, TN, Vielzeuf, P, Vikram, V, Wechsler, RH, Zuntz, J, Abbott, TMC, Abdalla, FB, Allam, S, Annis, J, Bertin, E, Brooks, D, Buckley-Geer, E, Burke, DL, Kind, MC, Carretero, J, Crocce, M, Cunha, CE, D'Andrea, CB, Desai, S, Diehl, HT, Dietrich, JP, Doel, P, Estrada, J, Neto, AF, Fernandez, E, Flaugher, B, Frieman, J, García-Bellido, J, Gruendl, RA, Gutierrez, G, Honscheid, K, James, DJ, Jeltema, T, Johnson, MWG, Johnson, MD, Kent, S, Kirk, D, Krause, E, Kuehn, K, Kuhlmann, S, Lahav, O, Li, TS, Lima, M, March, M, Martini, P, Menanteau, F, Miquel, R, Mohr, JJ, Neilsen, E, Nichol, RC, Petravick, D, Plazas, AA, Romer, AK, Sako, M, Sanchez, E, Scarpine, V, Schubnell, M, Smith, M, Smith, RC, Soares-Santos, M, Sobreira, F, Suchyta, E, Tarle, G, Thomas, D, Tucker, DL, Walker, AR, Wester, W & Zhang, Y 2018, 'Dark Energy Survey year 1 results: curved-sky weak lensing mass map', Monthly Notices of the Royal Astronomical Society. https://doi.org/10.1093/mnras/stx3363

TY - JOUR

T1 - Dark Energy Survey year 1 results: curved-sky weak lensing mass map

AU - Chang, C.

AU - Pujol, A.

AU - Mawdsley, B.

AU - Bacon, D.

AU - Elvin-Poole, J.

AU - Melchior, P.

AU - Kovács, A.

AU - Jain, B.

AU - Leistedt, B.

AU - Giannantonio, T.

AU - Alarcon, A.

AU - Baxter, E.

AU - Bechtol, K.

AU - Becker, M. R.

AU - Benoit-Lévy, A.

AU - Bernstein, G. M.

AU - Bonnett, C.

AU - Busha, M. T.

AU - Rosell, A. Carnero

AU - Castander, F. J.

AU - Cawthon, R.

AU - Costa, L. N. da

AU - Davis, C.

AU - Vicente, J. De

AU - DeRose, J.

AU - Drlica-Wagner, A.

AU - Fosalba, P.

AU - Gatti, M.

AU - Gaztanaga, E.

AU - Gruen, D.

AU - Gschwend, J.

AU - Hartley, W. G.

AU - Hoyle, B.

AU - Huff, E. M.

AU - Jarvis, M.

AU - Jeffrey, N.

AU - Kacprzak, T.

AU - Lin, H.

AU - MacCrann, N.

AU - Maia, M. A. G.

AU - Ogando, R. L. C.

AU - Prat, J.

AU - Rau, M. M.

AU - Rollins, R. P.

AU - Roodman, A.

AU - Rozo, E.

AU - Rykoff, E. S.

AU - Samuroff, S.

AU - Sánchez, C.

AU - Sevilla-Noarbe, I.

AU - Sheldon, E.

AU - Troxel, M. A.

AU - Varga, T. N.

AU - Vielzeuf, P.

AU - Vikram, V.

AU - Wechsler, R. H.

AU - Zuntz, J.

AU - Abbott, T. M. C.

AU - Abdalla, F. B.

AU - Allam, S.

AU - Annis, J.

AU - Bertin, E.

AU - Brooks, D.

AU - Buckley-Geer, E.

AU - Burke, D. L.

AU - Kind, M. Carrasco

AU - Carretero, J.

AU - Crocce, M.

AU - Cunha, C. E.

AU - D'Andrea, C. B.

AU - Desai, S.

AU - Diehl, H. T.

AU - Dietrich, J. P.

AU - Doel, P.

AU - Estrada, J.

AU - Neto, A. Fausti

AU - Fernandez, E.

AU - Flaugher, B.

AU - Frieman, J.

AU - García-Bellido, J.

AU - Gruendl, R. A.

AU - Gutierrez, G.

AU - Honscheid, K.

AU - James, D. J.

AU - Jeltema, T.

AU - Johnson, M. W. G.

AU - Johnson, M. D.

AU - Kent, S.

AU - Kirk, D.

AU - Krause, E.

AU - Kuehn, K.

AU - Kuhlmann, S.

AU - Lahav, O.

AU - Li, T. S.

AU - Lima, M.

AU - March, M.

AU - Martini, P.

AU - Menanteau, F.

AU - Miquel, R.

AU - Mohr, J. J.

AU - Neilsen, E.

AU - Nichol, R. C.

AU - Petravick, D.

AU - Plazas, A. A.

AU - Romer, A. K.

AU - Sako, M.

AU - Sanchez, E.

AU - Scarpine, V.

AU - Schubnell, M.

AU - Smith, Matthew

AU - Smith, R. C.

AU - Soares-Santos, M.

AU - Sobreira, F.

AU - Suchyta, E.

AU - Tarle, G.

AU - Thomas, D.

AU - Tucker, D. L.

AU - Walker, A. R.

AU - Wester, W.

AU - Zhang, Y.

PY - 2018/1/4

Y1 - 2018/1/4

N2 - We construct the largest curved-sky galaxy weak lensing mass map to date from the DES first-year (DES Y1) data. The map, about 10 times larger than previous work, is constructed over a contiguous ≈1,500deg2, covering a comoving volume of ≈10Gpc3. The effects of masking, sampling, and noise are tested using simulations. We generate weak lensing maps from two DES Y1 shear catalogs, Metacalibration and Im3shape, with sources at redshift 0.2<z<1.3, and in each of four bins in this range. In the highest signal-to-noise map, the ratio between the mean signal-to-noise in the E-mode and the B-mode map is ∼1.5 (∼2) when smoothed with a Gaussian filter of σG=30 (80) arcminutes. The second and third moments of the convergence κ in the maps are in agreement with simulations. We also find no significant correlation of κ with maps of potential systematic contaminants. Finally, we demonstrate two applications of the mass maps: (1) cross-correlation with different foreground tracers of mass and (2) exploration of the largest peaks and voids in the maps.

AB - We construct the largest curved-sky galaxy weak lensing mass map to date from the DES first-year (DES Y1) data. The map, about 10 times larger than previous work, is constructed over a contiguous ≈1,500deg2, covering a comoving volume of ≈10Gpc3. The effects of masking, sampling, and noise are tested using simulations. We generate weak lensing maps from two DES Y1 shear catalogs, Metacalibration and Im3shape, with sources at redshift 0.2<z<1.3, and in each of four bins in this range. In the highest signal-to-noise map, the ratio between the mean signal-to-noise in the E-mode and the B-mode map is ∼1.5 (∼2) when smoothed with a Gaussian filter of σG=30 (80) arcminutes. The second and third moments of the convergence κ in the maps are in agreement with simulations. We also find no significant correlation of κ with maps of potential systematic contaminants. Finally, we demonstrate two applications of the mass maps: (1) cross-correlation with different foreground tracers of mass and (2) exploration of the largest peaks and voids in the maps.

KW - astro-ph.CO

KW - RCUK

KW - STFC

U2 - 10.1093/mnras/stx3363

DO - 10.1093/mnras/stx3363

M3 - Article

SN - 0035-8711

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

ER -

Dark Energy Survey year 1 results: curved-sky weak lensing mass map

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Years worth of data released in bid to map out the universe and help scientists learn more about dark energy

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