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

Research output: Contribution to journalArticle

4 Citations (Scopus)

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.

Original languageEnglish (US)
Article numberL25
JournalAstrophysical Journal Letters
Volume818
Issue number2
DOIs
StatePublished - Feb 20 2016

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shear
Hubble Space Telescope
analysis
galaxies
scaling
estimates
profiles
x rays
effect

Keywords

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

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Mo, W., Gonzalez, A., Jee, M. J., Massey, R., Rhodes, J., Brodwin, M., ... Zeimann, G. R. (2016). IDCS J1426.5+3508: WEAK LENSING ANALYSIS of A MASSIVE GALAXY CLUSTER at z = 1.75. Astrophysical Journal Letters, 818(2), [L25]. https://doi.org/10.3847/2041-8205/818/2/L25

IDCS J1426.5+3508 : WEAK LENSING ANALYSIS of A MASSIVE GALAXY CLUSTER at z = 1.75. / Mo, Wenli; Gonzalez, Anthony; Jee, M. James; Massey, Richard; Rhodes, Jason; Brodwin, Mark; Eisenhardt, Peter; Marrone, Daniel P; Stanford, S. A.; Zeimann, Gregory R.

In: Astrophysical Journal Letters, Vol. 818, No. 2, L25, 20.02.2016.

Research output: Contribution to journalArticle

Mo, W, Gonzalez, A, Jee, MJ, Massey, R, Rhodes, J, Brodwin, M, Eisenhardt, P, Marrone, DP, Stanford, SA & Zeimann, GR 2016, 'IDCS J1426.5+3508: WEAK LENSING ANALYSIS of A MASSIVE GALAXY CLUSTER at z = 1.75', Astrophysical Journal Letters, vol. 818, no. 2, L25. https://doi.org/10.3847/2041-8205/818/2/L25
Mo, Wenli ; Gonzalez, Anthony ; Jee, M. James ; Massey, Richard ; Rhodes, Jason ; Brodwin, Mark ; Eisenhardt, Peter ; Marrone, Daniel P ; Stanford, S. A. ; Zeimann, Gregory R. / IDCS J1426.5+3508 : WEAK LENSING ANALYSIS of A MASSIVE GALAXY CLUSTER at z = 1.75. In: Astrophysical Journal Letters. 2016 ; Vol. 818, No. 2.
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