IDCS J1426.5+3508: WEAK LENSING ANALYSIS of A MASSIVE GALAXY CLUSTER at z = 1.75

Wenli Mo; Anthony Gonzalez; M. James Jee; Richard Massey; Jason Rhodes; Mark Brodwin; Peter Eisenhardt; Daniel P. Marrone; S. A. Stanford; Gregory R. Zeimann

doi:10.3847/2041-8205/818/2/L25

IDCS J1426.5+3508: WEAK LENSING ANALYSIS of A MASSIVE GALAXY CLUSTER at z = 1.75

Wenli Mo, Anthony Gonzalez, M. James Jee, Richard Massey, Jason Rhodes, Mark Brodwin, Peter Eisenhardt, Daniel P. Marrone, S. A. Stanford, Gregory R. Zeimann

Astronomy

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

10 Scopus citations

Abstract

We present a weak lensing study of the galaxy cluster IDCS J1426.5+3508 at z = 1.75, which is the highest-redshift strong lensing cluster known and the most distant cluster for which a weak lensing analysis has been undertaken. Using F160W, F814W, and F606W observations with the Hubble Space Telescope, we detect tangential shear at 2σ significance. Fitting a Navarro-Frenk-White mass profile to the shear with a theoretical median mass-concentration relation, we derive a mass M_o. This mass is consistent with previous mass estimates from the Sunyaev-Zel'dovich (SZ) effect, X-ray, and strong lensing. The cluster lies on the local SZ-weak lensing mass scaling relation observed at low redshift, indicative of minimal evolution in this relation.

Original language	English (US)
Article number	L25
Journal	Astrophysical Journal Letters
Volume	818
Issue number	2
DOIs	https://doi.org/10.3847/2041-8205/818/2/L25
State	Published - Feb 20 2016

Keywords

cosmology: observations
dark matter
galaxies: clusters: individual (IDCS J1426.5+3508)
gravitational lensing: weak

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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title = "IDCS J1426.5+3508: WEAK LENSING ANALYSIS of A MASSIVE GALAXY CLUSTER at z = 1.75",

abstract = "We present a weak lensing study of the galaxy cluster IDCS J1426.5+3508 at z = 1.75, which is the highest-redshift strong lensing cluster known and the most distant cluster for which a weak lensing analysis has been undertaken. Using F160W, F814W, and F606W observations with the Hubble Space Telescope, we detect tangential shear at 2σ significance. Fitting a Navarro-Frenk-White mass profile to the shear with a theoretical median mass-concentration relation, we derive a mass Mo. This mass is consistent with previous mass estimates from the Sunyaev-Zel'dovich (SZ) effect, X-ray, and strong lensing. The cluster lies on the local SZ-weak lensing mass scaling relation observed at low redshift, indicative of minimal evolution in this relation.",

keywords = "cosmology: observations, dark matter, galaxies: clusters: individual (IDCS J1426.5+3508), gravitational lensing: weak",

author = "Wenli Mo and Anthony Gonzalez and Jee, {M. James} and Richard Massey and Jason Rhodes and Mark Brodwin and Peter Eisenhardt and Marrone, {Daniel P.} and Stanford, {S. A.} and Zeimann, {Gregory R.}",

year = "2016",

month = feb,

day = "20",

doi = "10.3847/2041-8205/818/2/L25",

language = "English (US)",

volume = "818",

journal = "Astrophysical Journal Letters",

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T2 - WEAK LENSING ANALYSIS of A MASSIVE GALAXY CLUSTER at z = 1.75

AU - Mo, Wenli

AU - Gonzalez, Anthony

AU - Jee, M. James

AU - Massey, Richard

AU - Rhodes, Jason

AU - Brodwin, Mark

AU - Eisenhardt, Peter

AU - Marrone, Daniel P.

AU - Stanford, S. A.

AU - Zeimann, Gregory R.

PY - 2016/2/20

Y1 - 2016/2/20

N2 - We present a weak lensing study of the galaxy cluster IDCS J1426.5+3508 at z = 1.75, which is the highest-redshift strong lensing cluster known and the most distant cluster for which a weak lensing analysis has been undertaken. Using F160W, F814W, and F606W observations with the Hubble Space Telescope, we detect tangential shear at 2σ significance. Fitting a Navarro-Frenk-White mass profile to the shear with a theoretical median mass-concentration relation, we derive a mass Mo. This mass is consistent with previous mass estimates from the Sunyaev-Zel'dovich (SZ) effect, X-ray, and strong lensing. The cluster lies on the local SZ-weak lensing mass scaling relation observed at low redshift, indicative of minimal evolution in this relation.

AB - We present a weak lensing study of the galaxy cluster IDCS J1426.5+3508 at z = 1.75, which is the highest-redshift strong lensing cluster known and the most distant cluster for which a weak lensing analysis has been undertaken. Using F160W, F814W, and F606W observations with the Hubble Space Telescope, we detect tangential shear at 2σ significance. Fitting a Navarro-Frenk-White mass profile to the shear with a theoretical median mass-concentration relation, we derive a mass Mo. This mass is consistent with previous mass estimates from the Sunyaev-Zel'dovich (SZ) effect, X-ray, and strong lensing. The cluster lies on the local SZ-weak lensing mass scaling relation observed at low redshift, indicative of minimal evolution in this relation.

KW - cosmology: observations

KW - dark matter

KW - galaxies: clusters: individual (IDCS J1426.5+3508)

KW - gravitational lensing: weak

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DO - 10.3847/2041-8205/818/2/L25

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SN - 2041-8205

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JO - Astrophysical Journal Letters

JF - Astrophysical Journal Letters

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ER -

IDCS J1426.5+3508: WEAK LENSING ANALYSIS of A MASSIVE GALAXY CLUSTER at z = 1.75

Abstract

Keywords

ASJC Scopus subject areas

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