Wide-field lensing mass maps from Dark Energy Survey science verification data: Methodology and detailed analysis

V. Vikram; C. Chang; B. Jain; D. Bacon; A. Amara; M. R. Becker; G. Bernstein; C. Bonnett; S. Bridle; D. Brout; M. Busha; J. Frieman; E. Gaztanaga; W. Hartley; M. Jarvis; T. Kacprzak; A. Kovács; O. Lahav; B. Leistedt; H. Lin; P. Melchior; H. Peiris; E. Rozo; E. Rykoff; C. Sánchez; E. Sheldon; M. A. Troxel; R. Wechsler; J. Zuntz; T. Abbott; F. B. Abdalla; R. Armstrong; M. Banerji; A. H. Bauer; A. Benoit-Lévy; E. Bertin; D. Brooks; E. Buckley-Geer; D. L. Burke; D. Capozzi; A. Carnero Rosell; M. Carrasco Kind; F. J. Castander; M. Crocce; C. E. Cunha; C. B. D'Andrea; L. N. Da Costa; D. L. Depoy; S. Desai; H. T. Diehl; J. P. Dietrich; J. Estrada; A. E. Evrard; A. Fausti Neto; E. Fernandez; B. Flaugher; P. Fosalba; D. Gerdes; D. Gruen; R. A. Gruendl; K. Honscheid; D. James; S. Kent; K. Kuehn; N. Kuropatkin; T. S. Li; M. A.G. Maia; M. Makler; M. March; J. Marshall; P. Martini; K. W. Merritt; C. J. Miller; R. Miquel; E. Neilsen; R. C. Nichol; B. Nord; R. Ogando; A. A. Plazas; A. K. Romer; A. Roodman; E. Sanchez; V. Scarpine; I. Sevilla; R. C. Smith; M. Soares-Santos; F. Sobreira; E. Suchyta; M. E.C. Swanson; G. Tarle; J. Thaler; D. Thomas; A. R. Walker; J. Weller

doi:10.1103/PhysRevD.92.022006

Wide-field lensing mass maps from Dark Energy Survey science verification data: Methodology and detailed analysis

V. Vikram, C. Chang, B. Jain, D. Bacon, A. Amara, M. R. Becker, G. Bernstein, C. Bonnett, S. Bridle, D. Brout, M. Busha, J. Frieman, E. Gaztanaga, W. Hartley, M. Jarvis, T. Kacprzak, A. Kovács, O. Lahav, B. Leistedt, H. LinP. Melchior, H. Peiris, E. Rozo, E. Rykoff, C. Sánchez, E. Sheldon, M. A. Troxel, R. Wechsler, J. Zuntz, T. Abbott, F. B. Abdalla, R. Armstrong, M. Banerji, A. H. Bauer, A. Benoit-Lévy, E. Bertin, D. Brooks, E. Buckley-Geer, D. L. Burke, D. Capozzi, A. Carnero Rosell, M. Carrasco Kind, F. J. Castander, M. Crocce, C. E. Cunha, C. B. D'Andrea, L. N. Da Costa, D. L. Depoy, S. Desai, H. T. Diehl, J. P. Dietrich, J. Estrada, A. E. Evrard, A. Fausti Neto, E. Fernandez, B. Flaugher, P. Fosalba, D. Gerdes, D. Gruen, R. A. Gruendl, K. Honscheid, D. James, S. Kent, K. Kuehn, N. Kuropatkin, T. S. Li, M. A.G. Maia, M. Makler, M. March, J. Marshall, P. Martini, K. W. Merritt, C. J. Miller, R. Miquel, E. Neilsen, R. C. Nichol, B. Nord, R. Ogando, A. A. Plazas, A. K. Romer, A. Roodman, E. Sanchez, V. Scarpine, I. Sevilla, R. C. Smith, M. Soares-Santos, F. Sobreira, E. Suchyta, M. E.C. Swanson, G. Tarle, J. Thaler, D. Thomas, A. R. Walker, J. Weller

Department of Physics

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

41 Citations (Scopus)

Abstract

© 2015 American Physical Society. Weak gravitational lensing allows one to reconstruct the spatial distribution of the projected mass density across the sky. These "mass maps" provide a powerful tool for studying cosmology as they probe both luminous and dark matter. In this paper, we present a weak lensing mass map reconstructed from shear measurements in a 139deg2 area from the Dark Energy Survey (DES) science verification data. We compare the distribution of mass with that of the foreground distribution of galaxies and clusters. The overdensities in the reconstructed map correlate well with the distribution of optically detected clusters. We demonstrate that candidate superclusters and voids along the line of sight can be identified, exploiting the tight scatter of the cluster photometric redshifts. We cross-correlate the mass map with a foreground magnitude-limited galaxy sample from the same data. Our measurement gives results consistent with mock catalogs from N-body simulations that include the primary sources of statistical uncertainties in the galaxy, lensing, and photo-z catalogs. The statistical significance of the cross-correlation is at the 6.8σ level with 20 arcminute smoothing. We find that the contribution of systematics to the lensing mass maps is generally within measurement uncertainties. In this work, we analyze less than 3% of the final area that will be mapped by the DES; the tools and analysis techniques developed in this paper can be applied to forthcoming larger data sets from the survey.

Original language	English
Article number	022006
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	92
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevD.92.022006
Publication status	Published - 29 Jul 2015

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Vikram, V., Chang, C., Jain, B., Bacon, D., Amara, A., Becker, M. R., Bernstein, G., Bonnett, C., Bridle, S., Brout, D., Busha, M., Frieman, J., Gaztanaga, E., Hartley, W., Jarvis, M., Kacprzak, T., Kovács, A., Lahav, O., Leistedt, B., ... Weller, J. (2015). Wide-field lensing mass maps from Dark Energy Survey science verification data: Methodology and detailed analysis. Physical Review D - Particles, Fields, Gravitation and Cosmology, 92(2), [022006]. https://doi.org/10.1103/PhysRevD.92.022006

Vikram, V. ; Chang, C. ; Jain, B. ; Bacon, D. ; Amara, A. ; Becker, M. R. ; Bernstein, G. ; Bonnett, C. ; Bridle, S. ; Brout, D. ; Busha, M. ; Frieman, J. ; Gaztanaga, E. ; Hartley, W. ; Jarvis, M. ; Kacprzak, T. ; Kovács, A. ; Lahav, O. ; Leistedt, B. ; Lin, H. ; Melchior, P. ; Peiris, H. ; Rozo, E. ; Rykoff, E. ; Sánchez, C. ; Sheldon, E. ; Troxel, M. A. ; Wechsler, R. ; Zuntz, J. ; Abbott, T. ; Abdalla, F. B. ; Armstrong, R. ; Banerji, M. ; Bauer, A. H. ; Benoit-Lévy, A. ; Bertin, E. ; Brooks, D. ; Buckley-Geer, E. ; Burke, D. L. ; Capozzi, D. ; Carnero Rosell, A. ; Carrasco Kind, M. ; Castander, F. J. ; Crocce, M. ; Cunha, C. E. ; D'Andrea, C. B. ; Da Costa, L. N. ; Depoy, D. L. ; Desai, S. ; Diehl, H. T. ; Dietrich, J. P. ; Estrada, J. ; Evrard, A. E. ; Fausti Neto, A. ; Fernandez, E. ; Flaugher, B. ; Fosalba, P. ; Gerdes, D. ; Gruen, D. ; Gruendl, R. A. ; Honscheid, K. ; James, D. ; Kent, S. ; Kuehn, K. ; Kuropatkin, N. ; Li, T. S. ; Maia, M. A.G. ; Makler, M. ; March, M. ; Marshall, J. ; Martini, P. ; Merritt, K. W. ; Miller, C. J. ; Miquel, R. ; Neilsen, E. ; Nichol, R. C. ; Nord, B. ; Ogando, R. ; Plazas, A. A. ; Romer, A. K. ; Roodman, A. ; Sanchez, E. ; Scarpine, V. ; Sevilla, I. ; Smith, R. C. ; Soares-Santos, M. ; Sobreira, F. ; Suchyta, E. ; Swanson, M. E.C. ; Tarle, G. ; Thaler, J. ; Thomas, D. ; Walker, A. R. ; Weller, J. / Wide-field lensing mass maps from Dark Energy Survey science verification data: Methodology and detailed analysis. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2015 ; Vol. 92, No. 2.

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title = "Wide-field lensing mass maps from Dark Energy Survey science verification data: Methodology and detailed analysis",

abstract = "{\textcopyright} 2015 American Physical Society. Weak gravitational lensing allows one to reconstruct the spatial distribution of the projected mass density across the sky. These {"}mass maps{"} provide a powerful tool for studying cosmology as they probe both luminous and dark matter. In this paper, we present a weak lensing mass map reconstructed from shear measurements in a 139deg2 area from the Dark Energy Survey (DES) science verification data. We compare the distribution of mass with that of the foreground distribution of galaxies and clusters. The overdensities in the reconstructed map correlate well with the distribution of optically detected clusters. We demonstrate that candidate superclusters and voids along the line of sight can be identified, exploiting the tight scatter of the cluster photometric redshifts. We cross-correlate the mass map with a foreground magnitude-limited galaxy sample from the same data. Our measurement gives results consistent with mock catalogs from N-body simulations that include the primary sources of statistical uncertainties in the galaxy, lensing, and photo-z catalogs. The statistical significance of the cross-correlation is at the 6.8σ level with 20 arcminute smoothing. We find that the contribution of systematics to the lensing mass maps is generally within measurement uncertainties. In this work, we analyze less than 3% of the final area that will be mapped by the DES; the tools and analysis techniques developed in this paper can be applied to forthcoming larger data sets from the survey.",

author = "V. Vikram and C. Chang and B. Jain and D. Bacon and A. Amara and Becker, {M. R.} and G. Bernstein and C. Bonnett and S. Bridle and D. Brout and M. Busha and J. Frieman and E. Gaztanaga and W. Hartley and M. Jarvis and T. Kacprzak and A. Kov{\'a}cs and O. Lahav and B. Leistedt and H. Lin and P. Melchior and H. Peiris and E. Rozo and E. Rykoff and C. S{\'a}nchez and E. Sheldon and Troxel, {M. A.} and R. Wechsler and J. Zuntz and T. Abbott and Abdalla, {F. B.} and R. Armstrong and M. Banerji and Bauer, {A. H.} and A. Benoit-L{\'e}vy and E. Bertin and D. Brooks and E. Buckley-Geer and Burke, {D. L.} and D. Capozzi and {Carnero Rosell}, A. and {Carrasco Kind}, M. and Castander, {F. J.} and M. Crocce and Cunha, {C. E.} and D'Andrea, {C. B.} and {Da Costa}, {L. N.} and Depoy, {D. L.} and S. Desai and Diehl, {H. T.} and Dietrich, {J. P.} and J. Estrada and Evrard, {A. E.} and {Fausti Neto}, A. and E. Fernandez and B. Flaugher and P. Fosalba and D. Gerdes and D. Gruen and Gruendl, {R. A.} and K. Honscheid and D. James and S. Kent and K. Kuehn and N. Kuropatkin and Li, {T. S.} and Maia, {M. A.G.} and M. Makler and M. March and J. Marshall and P. Martini and Merritt, {K. W.} and Miller, {C. J.} and R. Miquel and E. Neilsen and Nichol, {R. C.} and B. Nord and R. Ogando and Plazas, {A. A.} and Romer, {A. K.} and A. Roodman and E. Sanchez and V. Scarpine and I. Sevilla and Smith, {R. C.} and M. Soares-Santos and F. Sobreira and E. Suchyta and Swanson, {M. E.C.} and G. Tarle and J. Thaler and D. Thomas and Walker, {A. R.} and J. Weller",

year = "2015",

month = jul,

day = "29",

doi = "10.1103/PhysRevD.92.022006",

language = "English",

volume = "92",

number = "2",

}

Vikram, V, Chang, C, Jain, B, Bacon, D, Amara, A, Becker, MR, Bernstein, G, Bonnett, C, Bridle, S, Brout, D, Busha, M, Frieman, J, Gaztanaga, E, Hartley, W, Jarvis, M, Kacprzak, T, Kovács, A, Lahav, O, Leistedt, B, Lin, H, Melchior, P, Peiris, H, Rozo, E, Rykoff, E, Sánchez, C, Sheldon, E, Troxel, MA, Wechsler, R, Zuntz, J, Abbott, T, Abdalla, FB, Armstrong, R, Banerji, M, Bauer, AH, Benoit-Lévy, A, Bertin, E, Brooks, D, Buckley-Geer, E, Burke, DL, Capozzi, D, Carnero Rosell, A, Carrasco Kind, M, Castander, FJ, Crocce, M, Cunha, CE, D'Andrea, CB, Da Costa, LN, Depoy, DL, Desai, S, Diehl, HT, Dietrich, JP, Estrada, J, Evrard, AE, Fausti Neto, A, Fernandez, E, Flaugher, B, Fosalba, P, Gerdes, D, Gruen, D, Gruendl, RA, Honscheid, K, James, D, Kent, S, Kuehn, K, Kuropatkin, N, Li, TS, Maia, MAG, Makler, M, March, M, Marshall, J, Martini, P, Merritt, KW, Miller, CJ, Miquel, R, Neilsen, E, Nichol, RC, Nord, B, Ogando, R, Plazas, AA, Romer, AK, Roodman, A, Sanchez, E, Scarpine, V, Sevilla, I, Smith, RC, Soares-Santos, M, Sobreira, F, Suchyta, E, Swanson, MEC, Tarle, G, Thaler, J, Thomas, D, Walker, AR & Weller, J 2015, 'Wide-field lensing mass maps from Dark Energy Survey science verification data: Methodology and detailed analysis', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 92, no. 2, 022006. https://doi.org/10.1103/PhysRevD.92.022006

Wide-field lensing mass maps from Dark Energy Survey science verification data: Methodology and detailed analysis. / Vikram, V.; Chang, C.; Jain, B.; Bacon, D.; Amara, A.; Becker, M. R.; Bernstein, G.; Bonnett, C.; Bridle, S.; Brout, D.; Busha, M.; Frieman, J.; Gaztanaga, E.; Hartley, W.; Jarvis, M.; Kacprzak, T.; Kovács, A.; Lahav, O.; Leistedt, B.; Lin, H.; Melchior, P.; Peiris, H.; Rozo, E.; Rykoff, E.; Sánchez, C.; Sheldon, E.; Troxel, M. A.; Wechsler, R.; Zuntz, J.; Abbott, T.; Abdalla, F. B.; Armstrong, R.; Banerji, M.; Bauer, A. H.; Benoit-Lévy, A.; Bertin, E.; Brooks, D.; Buckley-Geer, E.; Burke, D. L.; Capozzi, D.; Carnero Rosell, A.; Carrasco Kind, M.; Castander, F. J.; Crocce, M.; Cunha, C. E.; D'Andrea, C. B.; Da Costa, L. N.; Depoy, D. L.; Desai, S.; Diehl, H. T.; Dietrich, J. P.; Estrada, J.; Evrard, A. E.; Fausti Neto, A.; Fernandez, E.; Flaugher, B.; Fosalba, P.; Gerdes, D.; Gruen, D.; Gruendl, R. A.; Honscheid, K.; James, D.; Kent, S.; Kuehn, K.; Kuropatkin, N.; Li, T. S.; Maia, M. A.G.; Makler, M.; March, M.; Marshall, J.; Martini, P.; Merritt, K. W.; Miller, C. J.; Miquel, R.; Neilsen, E.; Nichol, R. C.; Nord, B.; Ogando, R.; Plazas, A. A.; Romer, A. K.; Roodman, A.; Sanchez, E.; Scarpine, V.; Sevilla, I.; Smith, R. C.; Soares-Santos, M.; Sobreira, F.; Suchyta, E.; Swanson, M. E.C.; Tarle, G.; Thaler, J.; Thomas, D.; Walker, A. R.; Weller, J.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 92, No. 2, 022006, 29.07.2015.

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

TY - JOUR

T1 - Wide-field lensing mass maps from Dark Energy Survey science verification data: Methodology and detailed analysis

AU - Vikram, V.

AU - Chang, C.

AU - Jain, B.

AU - Bacon, D.

AU - Amara, A.

AU - Becker, M. R.

AU - Bernstein, G.

AU - Bonnett, C.

AU - Bridle, S.

AU - Brout, D.

AU - Busha, M.

AU - Frieman, J.

AU - Gaztanaga, E.

AU - Hartley, W.

AU - Jarvis, M.

AU - Kacprzak, T.

AU - Kovács, A.

AU - Lahav, O.

AU - Leistedt, B.

AU - Lin, H.

AU - Melchior, P.

AU - Peiris, H.

AU - Rozo, E.

AU - Rykoff, E.

AU - Sánchez, C.

AU - Sheldon, E.

AU - Troxel, M. A.

AU - Wechsler, R.

AU - Zuntz, J.

AU - Abbott, T.

AU - Abdalla, F. B.

AU - Armstrong, R.

AU - Banerji, M.

AU - Bauer, A. H.

AU - Benoit-Lévy, A.

AU - Bertin, E.

AU - Brooks, D.

AU - Buckley-Geer, E.

AU - Burke, D. L.

AU - Capozzi, D.

AU - Carnero Rosell, A.

AU - Carrasco Kind, M.

AU - Castander, F. J.

AU - Crocce, M.

AU - Cunha, C. E.

AU - D'Andrea, C. B.

AU - Da Costa, L. N.

AU - Depoy, D. L.

AU - Desai, S.

AU - Diehl, H. T.

AU - Dietrich, J. P.

AU - Estrada, J.

AU - Evrard, A. E.

AU - Fausti Neto, A.

AU - Fernandez, E.

AU - Flaugher, B.

AU - Fosalba, P.

AU - Gerdes, D.

AU - Gruen, D.

AU - Gruendl, R. A.

AU - Honscheid, K.

AU - James, D.

AU - Kent, S.

AU - Kuehn, K.

AU - Kuropatkin, N.

AU - Li, T. S.

AU - Maia, M. A.G.

AU - Makler, M.

AU - March, M.

AU - Marshall, J.

AU - Martini, P.

AU - Merritt, K. W.

AU - Miller, C. J.

AU - Miquel, R.

AU - Neilsen, E.

AU - Nichol, R. C.

AU - Nord, B.

AU - Ogando, R.

AU - Plazas, A. A.

AU - Romer, A. K.

AU - Roodman, A.

AU - Sanchez, E.

AU - Scarpine, V.

AU - Sevilla, I.

AU - Smith, R. C.

AU - Soares-Santos, M.

AU - Sobreira, F.

AU - Suchyta, E.

AU - Swanson, M. E.C.

AU - Tarle, G.

AU - Thaler, J.

AU - Thomas, D.

AU - Walker, A. R.

AU - Weller, J.

PY - 2015/7/29

Y1 - 2015/7/29

N2 - © 2015 American Physical Society. Weak gravitational lensing allows one to reconstruct the spatial distribution of the projected mass density across the sky. These "mass maps" provide a powerful tool for studying cosmology as they probe both luminous and dark matter. In this paper, we present a weak lensing mass map reconstructed from shear measurements in a 139deg2 area from the Dark Energy Survey (DES) science verification data. We compare the distribution of mass with that of the foreground distribution of galaxies and clusters. The overdensities in the reconstructed map correlate well with the distribution of optically detected clusters. We demonstrate that candidate superclusters and voids along the line of sight can be identified, exploiting the tight scatter of the cluster photometric redshifts. We cross-correlate the mass map with a foreground magnitude-limited galaxy sample from the same data. Our measurement gives results consistent with mock catalogs from N-body simulations that include the primary sources of statistical uncertainties in the galaxy, lensing, and photo-z catalogs. The statistical significance of the cross-correlation is at the 6.8σ level with 20 arcminute smoothing. We find that the contribution of systematics to the lensing mass maps is generally within measurement uncertainties. In this work, we analyze less than 3% of the final area that will be mapped by the DES; the tools and analysis techniques developed in this paper can be applied to forthcoming larger data sets from the survey.

AB - © 2015 American Physical Society. Weak gravitational lensing allows one to reconstruct the spatial distribution of the projected mass density across the sky. These "mass maps" provide a powerful tool for studying cosmology as they probe both luminous and dark matter. In this paper, we present a weak lensing mass map reconstructed from shear measurements in a 139deg2 area from the Dark Energy Survey (DES) science verification data. We compare the distribution of mass with that of the foreground distribution of galaxies and clusters. The overdensities in the reconstructed map correlate well with the distribution of optically detected clusters. We demonstrate that candidate superclusters and voids along the line of sight can be identified, exploiting the tight scatter of the cluster photometric redshifts. We cross-correlate the mass map with a foreground magnitude-limited galaxy sample from the same data. Our measurement gives results consistent with mock catalogs from N-body simulations that include the primary sources of statistical uncertainties in the galaxy, lensing, and photo-z catalogs. The statistical significance of the cross-correlation is at the 6.8σ level with 20 arcminute smoothing. We find that the contribution of systematics to the lensing mass maps is generally within measurement uncertainties. In this work, we analyze less than 3% of the final area that will be mapped by the DES; the tools and analysis techniques developed in this paper can be applied to forthcoming larger data sets from the survey.

U2 - 10.1103/PhysRevD.92.022006

DO - 10.1103/PhysRevD.92.022006

M3 - Article

VL - 92

IS - 2

M1 - 022006

ER -