LoCuSS: Subaru Weak Lensing Study of 30 Galaxy Clusters
- N. Okabe, M. Takada, Birmingham
- Physics
- 6 March 2009
(Abridged) We use Subaru data to conduct a detailed weak-lensing study of the dark matter distribution in a sample of 30 X-ray luminous galaxy clusters at 0.15<z<0.3. A weak-lensing signal is…
THE CLUSTER LENSING AND SUPERNOVA SURVEY WITH HUBBLE: AN OVERVIEW
- M. Postman, D. Coe, A. V. D. Wel
- Physics
- 16 June 2011
The Cluster Lensing And Supernova survey with Hubble (CLASH) is a 524-orbit Multi-Cycle Treasury Program to use the gravitational lensing properties of 25 galaxy clusters to accurately constrain…
The Build-up of the Colour-Magnitude Relation
- Masayuki Tanaka, T. Kodama, Toru Yamada
- PhysicsProceedings of the International Astronomical…
- 29 June 2005
Abstract We discuss the build-up of the colour-magnitude relation. The colour-magnitude relation first appears at the bright end and the faint end appears later. Interestingly, the build-up of…
A magnified young galaxy from about 500 million years after the Big Bang
- Wei Zheng, M. Postman, A. V. D. Wel
- PhysicsNature
- 20 September 2012
Re-ionization of the intergalactic medium occurred in the early Universe at redshift z ≈ 6–11, following the formation of the first generation of stars. Those young galaxies (where the bulk of stars…
The Surprisingly Steep Mass Profile of A1689, from a Lensing Analysis of Subaru Images
- T. Broadhurst, M. Takada, T. Futamase
- Physics
- 8 December 2004
Subaru observations of A1689 (z = 0.183) are used to derive an accurate, model-independent mass profile for the entire cluster, r ≲ 2 Mpc h-1, by combining magnification bias and distortion…
CLASH: WEAK-LENSING SHEAR-AND-MAGNIFICATION ANALYSIS OF 20 GALAXY CLUSTERS
- K. Umetsu, E. Medezinski, A. Zitrin
- Physics
- 4 April 2014
We present a joint shear-and-magnification weak-lensing analysis of a sample of 16 X-ray-regular and 4 high-magnification galaxy clusters at 0.19 ≲ z ≲ 0.69 selected from the Cluster Lensing And…
EVIDENCE FOR UBIQUITOUS HIGH-EQUIVALENT-WIDTH NEBULAR EMISSION IN z ∼ 7 GALAXIES: TOWARD A CLEAN MEASUREMENT OF THE SPECIFIC STAR-FORMATION RATE USING A SAMPLE OF BRIGHT, MAGNIFIED GALAXIES
- R. Smit, R. Bouwens, S. Seitz
- Physics
- 22 July 2013
Growing observational evidence indicates that nebular line emission has a significant impact on the rest-frame optical fluxes of z ∼ 5–7 galaxies. This line emission makes z ∼ 5–7 galaxies appear…
J-PAS: The Javalambre-Physics of the Accelerated Universe Astrophysical Survey
- N. Benı́tez, R. Dupke, L. Valdivielso
- Physics
- 20 March 2014
The Javalambre-Physics of the Accelerated Universe Astrophysical Survey (J-PAS) is a narrow band, very wide field Cosmological Survey to be carried out from the Javalambre Observatory in Spain with a…
SUZAKU OBSERVATION OF A1689: ANISOTROPIC TEMPERATURE AND ENTROPY DISTRIBUTIONS ASSOCIATED WITH THE LARGE-SCALE STRUCTURE
- M. Kawaharada, N. Okabe, T. Ohashi
- Physics
- 25 February 2010
We present results of new, deep Suzaku X-ray observations (160 ks) of the intracluster medium (ICM) in A1689 out to its virial radius, combined with complementary data sets of the projected galaxy…
LoCuSS: CALIBRATING MASS–OBSERVABLE SCALING RELATIONS FOR CLUSTER COSMOLOGY WITH SUBARU WEAK-LENSING OBSERVATIONS
- N. Okabe, Y-Y. Zhang, T. Futamase
- Physics
- 22 July 2010
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,…
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