LoCuSS: Calibrating Mass-Observable Scaling Relations for Cluster Cosmology With Subaru Weak-Lensing Observations

N Okabe; YY Zhang; A Finoguenov; M Takada; Graham Smith; K Umetsu; T Futamase

doi:10.1088/0004-637X/721/1/875

LoCuSS: Calibrating Mass-Observable Scaling Relations for Cluster Cosmology With Subaru Weak-Lensing Observations

N Okabe, YY Zhang, A Finoguenov, M Takada, Graham Smith, K Umetsu, T Futamase

Physics and Astronomy

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Abstract

We present a joint weak-lensing/X-ray study of galaxy cluster mass-observable scaling relations motivated by the critical importance of accurate calibration of mass proxies for future X-ray missions, including eROSITA. We use a sample of 12 clusters at z similar or equal to 0.2 that we have observed with Subaru and XMM-Newton to construct relationships between the weak-lensing mass (M) and three X-ray observables, gas temperature (T), gas mass (M-gas), and quasi-integrated gas pressure (Y-X), at overdensities of Delta = 2500, 1000, and 500 with respect to the critical density. We find that M-gas at Delta

Original language	English
Pages (from-to)	875-885
Number of pages	11
Journal	The Astrophysical Journal
Volume	721
Issue number	1
DOIs	https://doi.org/10.1088/0004-637X/721/1/875
Publication status	Published - 1 Sept 2010

Keywords

galaxies: clusters: general
gravitational lensing: weak
dark matter
cosmology: observations
X-rays: galaxies: clusters

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10.1088/0004-637X/721/1/875

Birmingham Astrophysics - Rolling Grant 2007-2012
Ponman, T. (Principal Investigator), Cruise, M. (Co-Investigator), Freise, A. (Co-Investigator), Raychaudhury, S. (Co-Investigator), Smith, G. (Co-Investigator), Speake, C. (Co-Investigator), Stevens, I. (Co-Investigator) & Vecchio, A. (Co-Investigator)
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
1/04/07 → 31/03/12
Project: Research Councils

Cite this

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abstract = "We present a joint weak-lensing/X-ray study of galaxy cluster mass-observable scaling relations motivated by the critical importance of accurate calibration of mass proxies for future X-ray missions, including eROSITA. We use a sample of 12 clusters at z similar or equal to 0.2 that we have observed with Subaru and XMM-Newton to construct relationships between the weak-lensing mass (M) and three X-ray observables, gas temperature (T), gas mass (M-gas), and quasi-integrated gas pressure (Y-X), at overdensities of Delta = 2500, 1000, and 500 with respect to the critical density. We find that M-gas at Delta ",

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author = "N Okabe and YY Zhang and A Finoguenov and M Takada and Graham Smith and K Umetsu and T Futamase",

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AU - Zhang, YY

AU - Finoguenov, A

AU - Takada, M

AU - Smith, Graham

AU - Umetsu, K

AU - Futamase, T

PY - 2010/9/1

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KW - galaxies: clusters: general

KW - gravitational lensing: weak

KW - dark matter

KW - cosmology: observations

KW - X-rays: galaxies: clusters

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JO - The Astrophysical Journal

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LoCuSS: Calibrating Mass-Observable Scaling Relations for Cluster Cosmology With Subaru Weak-Lensing Observations

Abstract

Keywords

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Projects

Birmingham Astrophysics - Rolling Grant 2007-2012

Cite this