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The Subaru Seminar is usually held in Room 104 of the Hilo Base Facility, adjacent to the main lobby. Everyone is welcome to attend. If you are interested in giving a seminar, please contact Subaru seminar organizers (Tadayuki Kodama, Kumiko S. Usuda, Naoyuki Tamura, Tomonori Usuda) by email : sseminar_at_subaru.naoj.org (please change"_at" to @).

November 9, Tuesday, at 11:00 am

" LoCuSS - A Definitive `Rosetta Stone' Survey of Galaxy Clusters at z=0.2 "

Graham Smith

(University of Birmingham, UK)


The Local Cluster Substructure Survey (LoCuSS) is a study of a statistically complete sample of 80 galaxy clusters at z=0.2 with the Subaru telescope, and a wide range of space- and ground- based facilities. The main goals are (i) to measure definitively the mass-observable scaling relations upon which cluster-based attempts to measure the dark energy equation of state parameter w will rely, and (ii) to measure the cluster-cluster scatter in the star-formation rates and histories of galaxy clusters as part of a broad community-wide effort to understand the physical origin of S0 galaxies. Our results will also define a low-redshift benchmark that will aide the interpretation of the growing menagerie of high-redshift cluster samples in the coming decades. I will present an overview of the survey, and describe our recent results, including those from our ongoing Herschel Key Programme of far-infrared observations with PACS and SPIRE.


Seminars are also held at JAC, CFHT, and IfA.



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