Spatial matter density mapping of the STAGES Abell A901/2 supercluster field with 3D lensing

P. Simon; Catherine Heymans; T. Schrabback; Andy N. Taylor; Meghan E. Gray; Ludovic Van Waerbeke; Christian Wolf; David Bacon; Marco Barden; Asmus Bohm; Boris Haussler; Knud Jahnke; Shardha Jogee; Eelco Van Kampen; Klaus Meisenheimer; Chien Y. Peng

doi:10.1111/j.1365-2966.2011.19760.x

Spatial matter density mapping of the STAGES Abell A901/2 supercluster field with 3D lensing

P. Simon, Catherine Heymans, T. Schrabback, Andy N. Taylor, Meghan E. Gray, Ludovic Van Waerbeke, Christian Wolf, David Bacon, Marco Barden, Asmus Bohm, Boris Haussler, Knud Jahnke, Shardha Jogee, Eelco Van Kampen, Klaus Meisenheimer, Chien Y. Peng

Institute of Cosmology & Gravitation

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

128 Downloads (Pure)

Abstract

We present weak lensing data from the Hubble Space Telescope(HST)/Space Telescope A901/902 Galaxy Evolution Survey (STAGES) survey1 to study the three-dimensional spatial distribution of matter and galaxies in the Abell 901/902 supercluster complex. Our method improves over the existing 3D lensing mapping techniques by calibrating and removing redshift bias and accounting for the effects of the radial elongation of 3D structures. We also include the first detailed noise analysis of a 3D lensing map, showing that even with deep HST-quality data, only the most massive structures, for example M₂₀₀≳ 10¹⁵ M_⊙ h⁻¹ at z∼ 0.8, can be resolved in 3D with any reasonable redshift accuracy (Δz≈ 0.15). We compare the lensing map to the stellar mass distribution and find luminous counterparts for all mass peaks detected with a peak significance >3σ. We see structures in and behind the z= 0.165 foreground supercluster, finding structure directly behind the A901b cluster at z∼ 0.6 and also behind the south-west (SW) group at z∼ 0.7. This 3D structure viewed in projection has no significant impact on recent mass estimates of A901b or the SW group components SWa and SWb

Original language	English
Pages (from-to)	998-1016
Journal	Monthly Notices of the Royal Astronomical Society
Volume	419
Issue number	2
DOIs	https://doi.org/10.1111/j.1365-2966.2011.19760.x
Publication status	Published - Jan 2012

Access to Document

10.1111/j.1365-2966.2011.19760.x

1109.0932v2.pdfAccepted author manuscript (Post-print), 703 KB

Cite this

Simon, P., Heymans, C., Schrabback, T., Taylor, A. N., Gray, M. E., Van Waerbeke, L., Wolf, C., Bacon, D., Barden, M., Bohm, A., Haussler, B., Jahnke, K., Jogee, S., Van Kampen, E., Meisenheimer, K., & Peng, C. Y. (2012). Spatial matter density mapping of the STAGES Abell A901/2 supercluster field with 3D lensing. Monthly Notices of the Royal Astronomical Society, 419(2), 998-1016. https://doi.org/10.1111/j.1365-2966.2011.19760.x

@article{8e1dd89b0bb14544bd5f9fcab112cae2,

title = "Spatial matter density mapping of the STAGES Abell A901/2 supercluster field with 3D lensing",

abstract = "We present weak lensing data from the Hubble Space Telescope(HST)/Space Telescope A901/902 Galaxy Evolution Survey (STAGES) survey1 to study the three-dimensional spatial distribution of matter and galaxies in the Abell 901/902 supercluster complex. Our method improves over the existing 3D lensing mapping techniques by calibrating and removing redshift bias and accounting for the effects of the radial elongation of 3D structures. We also include the first detailed noise analysis of a 3D lensing map, showing that even with deep HST-quality data, only the most massive structures, for example M200≳ 1015 M⊙ h−1 at z∼ 0.8, can be resolved in 3D with any reasonable redshift accuracy (Δz≈ 0.15). We compare the lensing map to the stellar mass distribution and find luminous counterparts for all mass peaks detected with a peak significance >3σ. We see structures in and behind the z= 0.165 foreground supercluster, finding structure directly behind the A901b cluster at z∼ 0.6 and also behind the south-west (SW) group at z∼ 0.7. This 3D structure viewed in projection has no significant impact on recent mass estimates of A901b or the SW group components SWa and SWb",

author = "P. Simon and Catherine Heymans and T. Schrabback and Taylor, {Andy N.} and Gray, {Meghan E.} and {Van Waerbeke}, Ludovic and Christian Wolf and David Bacon and Marco Barden and Asmus Bohm and Boris Haussler and Knud Jahnke and Shardha Jogee and {Van Kampen}, Eelco and Klaus Meisenheimer and Peng, {Chien Y.}",

year = "2012",

month = jan,

doi = "10.1111/j.1365-2966.2011.19760.x",

language = "English",

volume = "419",

pages = "998--1016",

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

issn = "0035-8711",

publisher = "Oxford University Press",

number = "2",

}

Simon, P, Heymans, C, Schrabback, T, Taylor, AN, Gray, ME, Van Waerbeke, L, Wolf, C, Bacon, D, Barden, M, Bohm, A, Haussler, B, Jahnke, K, Jogee, S, Van Kampen, E, Meisenheimer, K & Peng, CY 2012, 'Spatial matter density mapping of the STAGES Abell A901/2 supercluster field with 3D lensing', Monthly Notices of the Royal Astronomical Society, vol. 419, no. 2, pp. 998-1016. https://doi.org/10.1111/j.1365-2966.2011.19760.x

TY - JOUR

T1 - Spatial matter density mapping of the STAGES Abell A901/2 supercluster field with 3D lensing

AU - Simon, P.

AU - Heymans, Catherine

AU - Schrabback, T.

AU - Taylor, Andy N.

AU - Gray, Meghan E.

AU - Van Waerbeke, Ludovic

AU - Wolf, Christian

AU - Bacon, David

AU - Barden, Marco

AU - Bohm, Asmus

AU - Haussler, Boris

AU - Jahnke, Knud

AU - Jogee, Shardha

AU - Van Kampen, Eelco

AU - Meisenheimer, Klaus

AU - Peng, Chien Y.

PY - 2012/1

Y1 - 2012/1

N2 - We present weak lensing data from the Hubble Space Telescope(HST)/Space Telescope A901/902 Galaxy Evolution Survey (STAGES) survey1 to study the three-dimensional spatial distribution of matter and galaxies in the Abell 901/902 supercluster complex. Our method improves over the existing 3D lensing mapping techniques by calibrating and removing redshift bias and accounting for the effects of the radial elongation of 3D structures. We also include the first detailed noise analysis of a 3D lensing map, showing that even with deep HST-quality data, only the most massive structures, for example M200≳ 1015 M⊙ h−1 at z∼ 0.8, can be resolved in 3D with any reasonable redshift accuracy (Δz≈ 0.15). We compare the lensing map to the stellar mass distribution and find luminous counterparts for all mass peaks detected with a peak significance >3σ. We see structures in and behind the z= 0.165 foreground supercluster, finding structure directly behind the A901b cluster at z∼ 0.6 and also behind the south-west (SW) group at z∼ 0.7. This 3D structure viewed in projection has no significant impact on recent mass estimates of A901b or the SW group components SWa and SWb

AB - We present weak lensing data from the Hubble Space Telescope(HST)/Space Telescope A901/902 Galaxy Evolution Survey (STAGES) survey1 to study the three-dimensional spatial distribution of matter and galaxies in the Abell 901/902 supercluster complex. Our method improves over the existing 3D lensing mapping techniques by calibrating and removing redshift bias and accounting for the effects of the radial elongation of 3D structures. We also include the first detailed noise analysis of a 3D lensing map, showing that even with deep HST-quality data, only the most massive structures, for example M200≳ 1015 M⊙ h−1 at z∼ 0.8, can be resolved in 3D with any reasonable redshift accuracy (Δz≈ 0.15). We compare the lensing map to the stellar mass distribution and find luminous counterparts for all mass peaks detected with a peak significance >3σ. We see structures in and behind the z= 0.165 foreground supercluster, finding structure directly behind the A901b cluster at z∼ 0.6 and also behind the south-west (SW) group at z∼ 0.7. This 3D structure viewed in projection has no significant impact on recent mass estimates of A901b or the SW group components SWa and SWb

U2 - 10.1111/j.1365-2966.2011.19760.x

DO - 10.1111/j.1365-2966.2011.19760.x

M3 - Article

SN - 0035-8711

VL - 419

SP - 998

EP - 1016

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 2

ER -

Spatial matter density mapping of the STAGES Abell A901/2 supercluster field with 3D lensing

Abstract

Access to Document

Fingerprint

Cite this