The mass of the Coma Cluster from weak lensing in the sloan digital sky survey

Jeffrey M. Kubo; Albert Stebbins; James Annis; Ian P. Dell'Antonio; Lin Huan; Hossein Khiabanian; Joshua A. Frieman

doi:10.1086/523101

The mass of the Coma Cluster from weak lensing in the sloan digital sky survey

Jeffrey M. Kubo, Albert Stebbins, James Annis, Ian P. Dell'Antonio, Lin Huan, Hossein Khiabanian, Joshua A. Frieman

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

120 Scopus citations

Abstract

We present a weak-lensing analysis of the Coma Cluster using the Sloan Digital Sky Survey Data Release 5. Complete imaging of an ∼200 deg ² region is used to measure the tangential shear of this cluster. The shear is fit to a Navarro, Frenk, & White model, and we find a virial radius of r₂₀₀ = 1.99_-0.22^+0.21h ^-1Mpc, which corresponds to a virial mass of M₂₀₀ = 1.88_-0.56^+0.65 × 10¹⁵ h^-1 M_⊙. We additionally compare our weak-lensing measurement to the virial mass derived using dynamical techniques and find that they are in agreement. This is the lowest redshift, largest angle weak-lensing measurement of an individual cluster to date.

Original language	English (US)
Pages (from-to)	1466-1470
Number of pages	5
Journal	Astrophysical Journal
Volume	671
Issue number	2
DOIs	https://doi.org/10.1086/523101
State	Published - Dec 20 2007
Externally published	Yes

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

Galaxies: clusters: individual (Coma)
Gravitational lensing

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10.1086/523101

Cite this

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title = "The mass of the Coma Cluster from weak lensing in the sloan digital sky survey",

abstract = "We present a weak-lensing analysis of the Coma Cluster using the Sloan Digital Sky Survey Data Release 5. Complete imaging of an ∼200 deg 2 region is used to measure the tangential shear of this cluster. The shear is fit to a Navarro, Frenk, & White model, and we find a virial radius of r200 = 1.99-0.22+0.21h -1Mpc, which corresponds to a virial mass of M200 = 1.88-0.56+0.65 × 1015 h-1 M⊙. We additionally compare our weak-lensing measurement to the virial mass derived using dynamical techniques and find that they are in agreement. This is the lowest redshift, largest angle weak-lensing measurement of an individual cluster to date.",

keywords = "Galaxies: clusters: individual (Coma), Gravitational lensing",

author = "Kubo, {Jeffrey M.} and Albert Stebbins and James Annis and Dell'Antonio, {Ian P.} and Lin Huan and Hossein Khiabanian and Frieman, {Joshua A.}",

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TY - JOUR

T1 - The mass of the Coma Cluster from weak lensing in the sloan digital sky survey

AU - Kubo, Jeffrey M.

AU - Stebbins, Albert

AU - Annis, James

AU - Dell'Antonio, Ian P.

AU - Huan, Lin

AU - Khiabanian, Hossein

AU - Frieman, Joshua A.

PY - 2007/12/20

Y1 - 2007/12/20

N2 - We present a weak-lensing analysis of the Coma Cluster using the Sloan Digital Sky Survey Data Release 5. Complete imaging of an ∼200 deg 2 region is used to measure the tangential shear of this cluster. The shear is fit to a Navarro, Frenk, & White model, and we find a virial radius of r200 = 1.99-0.22+0.21h -1Mpc, which corresponds to a virial mass of M200 = 1.88-0.56+0.65 × 1015 h-1 M⊙. We additionally compare our weak-lensing measurement to the virial mass derived using dynamical techniques and find that they are in agreement. This is the lowest redshift, largest angle weak-lensing measurement of an individual cluster to date.

AB - We present a weak-lensing analysis of the Coma Cluster using the Sloan Digital Sky Survey Data Release 5. Complete imaging of an ∼200 deg 2 region is used to measure the tangential shear of this cluster. The shear is fit to a Navarro, Frenk, & White model, and we find a virial radius of r200 = 1.99-0.22+0.21h -1Mpc, which corresponds to a virial mass of M200 = 1.88-0.56+0.65 × 1015 h-1 M⊙. We additionally compare our weak-lensing measurement to the virial mass derived using dynamical techniques and find that they are in agreement. This is the lowest redshift, largest angle weak-lensing measurement of an individual cluster to date.

KW - Galaxies: clusters: individual (Coma)

KW - Gravitational lensing

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JO - Astrophysical Journal

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The mass of the Coma Cluster from weak lensing in the sloan digital sky survey

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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