Mass and galaxy distributions of four massive galaxy clusters from Dark Energy Survey Science Verification data

P. Melchior; E. Suchyta; E. Huff; M. Hirsch; T. Kacprzak; E. Rykoff; D. Gruen; R. Armstrong; D. Bacon; K. Bechtol; G. M. Bernstein; S. Bridle; J. Clampitt; K. Honscheid; B. Jain; S. Jouvel; E. Krause; H. Lin; N. MacCrann; K. Patton; A. Plazas; B. Rowe; V. Vikram; H. Wilcox; J. Young; J. Zuntz; T. Abbott; F. B. Abdalla; S. S. Allam; M. Banerji; J. P. Bernstein; R. A. Bernstein; E. Bertin; E. Buckley-Geer; D. L. Burke; F. J. Castander; L. N. da Costa; C. E. Cunha; D. L. Depoy; S. Desai; H. T. Diehl; P. Doel; J. Estrada; A. E. Evrard; A. Fausti Neto; E. Fernandez; D. A. Finley; B. Flaugher; J. A. Frieman; E. Gaztanaga; D. Gerdes; R. A. Gruendl; G. R. Gutierrez; M. Jarvis; I. Karliner; S. Kent; K. Kuehn; N. Kuropatkin; O. Lahav; M. A. G. Maia; M. Makler; J. Marriner; J. L. Marshall; K. W. Merritt; C. J. Miller; R. Miquel; J. Mohr; E. Neilsen; R. C. Nichol; B. D. Nord; K. Reil; N. A. Roe; A. Roodman; M. Sako; E. Sanchez; B. X. Santiago; R. Schindler; M. Schubnell; I. Sevilla-Noarbe; E. Sheldon; C. Smith; M. Soares-Santos; M. E. C. Swanson; A. J. Sypniewski; G. Tarle; J. Thaler; D. Thomas; D. L. Tucker; A. Walker; R. Wechsler; J. Weller; W. Wester

doi:10.1093/mnras/stv398

Mass and galaxy distributions of four massive galaxy clusters from Dark Energy Survey Science Verification data

P. Melchior, E. Suchyta, E. Huff, M. Hirsch, T. Kacprzak, E. Rykoff, D. Gruen, R. Armstrong, D. Bacon, K. Bechtol, G. M. Bernstein, S. Bridle, J. Clampitt, K. Honscheid, B. Jain, S. Jouvel, E. Krause, H. Lin, N. MacCrann, K. PattonA. Plazas, B. Rowe, V. Vikram, H. Wilcox, J. Young, J. Zuntz, T. Abbott, F. B. Abdalla, S. S. Allam, M. Banerji, J. P. Bernstein, R. A. Bernstein, E. Bertin, E. Buckley-Geer, D. L. Burke, F. J. Castander, L. N. da Costa, C. E. Cunha, D. L. Depoy, S. Desai, H. T. Diehl, P. Doel, J. Estrada, A. E. Evrard, A. Fausti Neto, E. Fernandez, D. A. Finley, B. Flaugher, J. A. Frieman, E. Gaztanaga, D. Gerdes, R. A. Gruendl, G. R. Gutierrez, M. Jarvis, I. Karliner, S. Kent, K. Kuehn, N. Kuropatkin, O. Lahav, M. A. G. Maia, M. Makler, J. Marriner, J. L. Marshall, K. W. Merritt, C. J. Miller, R. Miquel, J. Mohr, E. Neilsen, R. C. Nichol, B. D. Nord, K. Reil, N. A. Roe, A. Roodman, M. Sako, E. Sanchez, B. X. Santiago, R. Schindler, M. Schubnell, I. Sevilla-Noarbe, E. Sheldon, C. Smith, M. Soares-Santos, M. E. C. Swanson, A. J. Sypniewski, G. Tarle, J. Thaler, D. Thomas, D. L. Tucker, A. Walker, R. Wechsler, J. Weller, W. Wester

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Abstract

We measure the weak-lensing masses and galaxy distributions of four massive galaxy clusters observed during the Science Verification phase of the Dark Energy Survey. This pathfinder study is meant to 1) validate the DECam imager for the task of measuring weak-lensing shapes, and 2) utilize DECam's large field of view to map out the clusters and their environments over 90 arcmin. We conduct a series of rigorous tests on astrometry, photometry, image quality, PSF modeling, and shear measurement accuracy to single out flaws in the data and also to identify the optimal data processing steps and parameters. We find Science Verification data from DECam to be suitable for the lensing analysis described in this paper. The PSF is generally well-behaved, but the modeling is rendered difficult by a flux-dependent PSF width and ellipticity. We employ photometric redshifts to distinguish between foreground and background galaxies, and a red-sequence cluster finder to provide cluster richness estimates and cluster-galaxy distributions. By fitting NFW profiles to the clusters in this study, we determine weak-lensing masses that are in agreement with previous work. For Abell 3261, we provide the first estimates of redshift, weak-lensing mass, and richness. In addition, the cluster-galaxy distributions indicate the presence of filamentary structures attached to 1E 0657-56 and RXC J2248.7-4431, stretching out as far as 1 degree (approximately 20 Mpc), showcasing the potential of DECam and DES for detailed studies of degree-scale features on the sky.

Original language	English
Pages (from-to)	2219-2238
Journal	Monthly Notices of the Royal Astronomical Society
Volume	449
Early online date	31 Mar 2015
DOIs	https://doi.org/10.1093/mnras/stv398
Publication status	Published - 21 May 2015

Keywords

astro-ph.CO
astro-ph.GA
RCUK
STFC

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10.1093/mnras/stv398

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This article has been accepted for publication in 'Monthly notices of the Royal Astronomical Society ©: 2015 Royal Astronomical Society. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
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Melchior, P., Suchyta, E., Huff, E., Hirsch, M., Kacprzak, T., Rykoff, E., Gruen, D., Armstrong, R., Bacon, D., Bechtol, K., Bernstein, G. M., Bridle, S., Clampitt, J., Honscheid, K., Jain, B., Jouvel, S., Krause, E., Lin, H., MacCrann, N., ... Wester, W. (2015). Mass and galaxy distributions of four massive galaxy clusters from Dark Energy Survey Science Verification data. Monthly Notices of the Royal Astronomical Society, 449, 2219-2238. https://doi.org/10.1093/mnras/stv398

@article{15d8cffa24134a74b19c3a810ae7b34e,

title = "Mass and galaxy distributions of four massive galaxy clusters from Dark Energy Survey Science Verification data",

abstract = "We measure the weak-lensing masses and galaxy distributions of four massive galaxy clusters observed during the Science Verification phase of the Dark Energy Survey. This pathfinder study is meant to 1) validate the DECam imager for the task of measuring weak-lensing shapes, and 2) utilize DECam's large field of view to map out the clusters and their environments over 90 arcmin. We conduct a series of rigorous tests on astrometry, photometry, image quality, PSF modeling, and shear measurement accuracy to single out flaws in the data and also to identify the optimal data processing steps and parameters. We find Science Verification data from DECam to be suitable for the lensing analysis described in this paper. The PSF is generally well-behaved, but the modeling is rendered difficult by a flux-dependent PSF width and ellipticity. We employ photometric redshifts to distinguish between foreground and background galaxies, and a red-sequence cluster finder to provide cluster richness estimates and cluster-galaxy distributions. By fitting NFW profiles to the clusters in this study, we determine weak-lensing masses that are in agreement with previous work. For Abell 3261, we provide the first estimates of redshift, weak-lensing mass, and richness. In addition, the cluster-galaxy distributions indicate the presence of filamentary structures attached to 1E 0657-56 and RXC J2248.7-4431, stretching out as far as 1 degree (approximately 20 Mpc), showcasing the potential of DECam and DES for detailed studies of degree-scale features on the sky.",

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

author = "P. Melchior and E. Suchyta and E. Huff and M. Hirsch and T. Kacprzak and E. Rykoff and D. Gruen and R. Armstrong and D. Bacon and K. Bechtol and Bernstein, {G. M.} and S. Bridle and J. Clampitt and K. Honscheid and B. Jain and S. Jouvel and E. Krause and H. Lin and N. MacCrann and K. Patton and A. Plazas and B. Rowe and V. Vikram and H. Wilcox and J. Young and J. Zuntz and T. Abbott and Abdalla, {F. B.} and Allam, {S. S.} and M. Banerji and Bernstein, {J. P.} and Bernstein, {R. A.} and E. Bertin and E. Buckley-Geer and Burke, {D. L.} and Castander, {F. J.} and Costa, {L. N. da} and Cunha, {C. E.} and Depoy, {D. L.} and S. Desai and Diehl, {H. T.} and P. Doel and J. Estrada and Evrard, {A. E.} and Neto, {A. Fausti} and E. Fernandez and Finley, {D. A.} and B. Flaugher and Frieman, {J. A.} and E. Gaztanaga and D. Gerdes and Gruendl, {R. A.} and Gutierrez, {G. R.} and M. Jarvis and I. Karliner and S. Kent and K. Kuehn and N. Kuropatkin and O. Lahav and Maia, {M. A. G.} and M. Makler and J. Marriner and Marshall, {J. L.} and Merritt, {K. W.} and Miller, {C. J.} and R. Miquel and J. Mohr and E. Neilsen and Nichol, {R. C.} and Nord, {B. D.} and K. Reil and Roe, {N. A.} and A. Roodman and M. Sako and E. Sanchez and Santiago, {B. X.} and R. Schindler and M. Schubnell and I. Sevilla-Noarbe and E. Sheldon and C. Smith and M. Soares-Santos and Swanson, {M. E. C.} and Sypniewski, {A. J.} and G. Tarle and J. Thaler and D. Thomas and Tucker, {D. L.} and A. Walker and R. Wechsler and J. Weller and W. Wester",

note = "This article has been accepted for publication in 'Monthly notices of the Royal Astronomical Society {\textcopyright}: 2015 Royal Astronomical Society. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.",

year = "2015",

month = may,

day = "21",

doi = "10.1093/mnras/stv398",

language = "English",

volume = "449",

pages = "2219--2238",

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

issn = "0035-8711",

publisher = "Oxford University Press",

}

Melchior, P, Suchyta, E, Huff, E, Hirsch, M, Kacprzak, T, Rykoff, E, Gruen, D, Armstrong, R, Bacon, D, Bechtol, K, Bernstein, GM, Bridle, S, Clampitt, J, Honscheid, K, Jain, B, Jouvel, S, Krause, E, Lin, H, MacCrann, N, Patton, K, Plazas, A, Rowe, B, Vikram, V, Wilcox, H, Young, J, Zuntz, J, Abbott, T, Abdalla, FB, Allam, SS, Banerji, M, Bernstein, JP, Bernstein, RA, Bertin, E, Buckley-Geer, E, Burke, DL, Castander, FJ, Costa, LND, Cunha, CE, Depoy, DL, Desai, S, Diehl, HT, Doel, P, Estrada, J, Evrard, AE, Neto, AF, Fernandez, E, Finley, DA, Flaugher, B, Frieman, JA, Gaztanaga, E, Gerdes, D, Gruendl, RA, Gutierrez, GR, Jarvis, M, Karliner, I, Kent, S, Kuehn, K, Kuropatkin, N, Lahav, O, Maia, MAG, Makler, M, Marriner, J, Marshall, JL, Merritt, KW, Miller, CJ, Miquel, R, Mohr, J, Neilsen, E, Nichol, RC, Nord, BD, Reil, K, Roe, NA, Roodman, A, Sako, M, Sanchez, E, Santiago, BX, Schindler, R, Schubnell, M, Sevilla-Noarbe, I, Sheldon, E, Smith, C, Soares-Santos, M, Swanson, MEC, Sypniewski, AJ, Tarle, G, Thaler, J, Thomas, D, Tucker, DL, Walker, A, Wechsler, R, Weller, J & Wester, W 2015, 'Mass and galaxy distributions of four massive galaxy clusters from Dark Energy Survey Science Verification data', Monthly Notices of the Royal Astronomical Society, vol. 449, pp. 2219-2238. https://doi.org/10.1093/mnras/stv398

TY - JOUR

T1 - Mass and galaxy distributions of four massive galaxy clusters from Dark Energy Survey Science Verification data

AU - Melchior, P.

AU - Suchyta, E.

AU - Huff, E.

AU - Hirsch, M.

AU - Kacprzak, T.

AU - Rykoff, E.

AU - Gruen, D.

AU - Armstrong, R.

AU - Bacon, D.

AU - Bechtol, K.

AU - Bernstein, G. M.

AU - Bridle, S.

AU - Clampitt, J.

AU - Honscheid, K.

AU - Jain, B.

AU - Jouvel, S.

AU - Krause, E.

AU - Lin, H.

AU - MacCrann, N.

AU - Patton, K.

AU - Plazas, A.

AU - Rowe, B.

AU - Vikram, V.

AU - Wilcox, H.

AU - Young, J.

AU - Zuntz, J.

AU - Abbott, T.

AU - Abdalla, F. B.

AU - Allam, S. S.

AU - Banerji, M.

AU - Bernstein, J. P.

AU - Bernstein, R. A.

AU - Bertin, E.

AU - Buckley-Geer, E.

AU - Burke, D. L.

AU - Castander, F. J.

AU - Costa, L. N. da

AU - Cunha, C. E.

AU - Depoy, D. L.

AU - Desai, S.

AU - Diehl, H. T.

AU - Doel, P.

AU - Estrada, J.

AU - Evrard, A. E.

AU - Neto, A. Fausti

AU - Fernandez, E.

AU - Finley, D. A.

AU - Flaugher, B.

AU - Frieman, J. A.

AU - Gaztanaga, E.

AU - Gerdes, D.

AU - Gruendl, R. A.

AU - Gutierrez, G. R.

AU - Jarvis, M.

AU - Karliner, I.

AU - Kent, S.

AU - Kuehn, K.

AU - Kuropatkin, N.

AU - Lahav, O.

AU - Maia, M. A. G.

AU - Makler, M.

AU - Marriner, J.

AU - Marshall, J. L.

AU - Merritt, K. W.

AU - Miller, C. J.

AU - Miquel, R.

AU - Mohr, J.

AU - Neilsen, E.

AU - Nichol, R. C.

AU - Nord, B. D.

AU - Reil, K.

AU - Roe, N. A.

AU - Roodman, A.

AU - Sako, M.

AU - Sanchez, E.

AU - Santiago, B. X.

AU - Schindler, R.

AU - Schubnell, M.

AU - Sevilla-Noarbe, I.

AU - Sheldon, E.

AU - Smith, C.

AU - Soares-Santos, M.

AU - Swanson, M. E. C.

AU - Sypniewski, A. J.

AU - Tarle, G.

AU - Thaler, J.

AU - Thomas, D.

AU - Tucker, D. L.

AU - Walker, A.

AU - Wechsler, R.

AU - Weller, J.

AU - Wester, W.

N1 - This article has been accepted for publication in 'Monthly notices of the Royal Astronomical Society ©: 2015 Royal Astronomical Society. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

PY - 2015/5/21

Y1 - 2015/5/21

N2 - We measure the weak-lensing masses and galaxy distributions of four massive galaxy clusters observed during the Science Verification phase of the Dark Energy Survey. This pathfinder study is meant to 1) validate the DECam imager for the task of measuring weak-lensing shapes, and 2) utilize DECam's large field of view to map out the clusters and their environments over 90 arcmin. We conduct a series of rigorous tests on astrometry, photometry, image quality, PSF modeling, and shear measurement accuracy to single out flaws in the data and also to identify the optimal data processing steps and parameters. We find Science Verification data from DECam to be suitable for the lensing analysis described in this paper. The PSF is generally well-behaved, but the modeling is rendered difficult by a flux-dependent PSF width and ellipticity. We employ photometric redshifts to distinguish between foreground and background galaxies, and a red-sequence cluster finder to provide cluster richness estimates and cluster-galaxy distributions. By fitting NFW profiles to the clusters in this study, we determine weak-lensing masses that are in agreement with previous work. For Abell 3261, we provide the first estimates of redshift, weak-lensing mass, and richness. In addition, the cluster-galaxy distributions indicate the presence of filamentary structures attached to 1E 0657-56 and RXC J2248.7-4431, stretching out as far as 1 degree (approximately 20 Mpc), showcasing the potential of DECam and DES for detailed studies of degree-scale features on the sky.

AB - We measure the weak-lensing masses and galaxy distributions of four massive galaxy clusters observed during the Science Verification phase of the Dark Energy Survey. This pathfinder study is meant to 1) validate the DECam imager for the task of measuring weak-lensing shapes, and 2) utilize DECam's large field of view to map out the clusters and their environments over 90 arcmin. We conduct a series of rigorous tests on astrometry, photometry, image quality, PSF modeling, and shear measurement accuracy to single out flaws in the data and also to identify the optimal data processing steps and parameters. We find Science Verification data from DECam to be suitable for the lensing analysis described in this paper. The PSF is generally well-behaved, but the modeling is rendered difficult by a flux-dependent PSF width and ellipticity. We employ photometric redshifts to distinguish between foreground and background galaxies, and a red-sequence cluster finder to provide cluster richness estimates and cluster-galaxy distributions. By fitting NFW profiles to the clusters in this study, we determine weak-lensing masses that are in agreement with previous work. For Abell 3261, we provide the first estimates of redshift, weak-lensing mass, and richness. In addition, the cluster-galaxy distributions indicate the presence of filamentary structures attached to 1E 0657-56 and RXC J2248.7-4431, stretching out as far as 1 degree (approximately 20 Mpc), showcasing the potential of DECam and DES for detailed studies of degree-scale features on the sky.

KW - astro-ph.CO

KW - astro-ph.GA

KW - RCUK

KW - STFC

U2 - 10.1093/mnras/stv398

DO - 10.1093/mnras/stv398

M3 - Article

SN - 0035-8711

VL - 449

SP - 2219

EP - 2238

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

ER -

Mass and galaxy distributions of four massive galaxy clusters from Dark Energy Survey Science Verification data

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