1. Particle Physics Seminar

    "Weak lensing science towards the Hyper Suprime-Cam survey"

    Presented by Hironao Miyatake, Princeton

    Thursday, September 12, 2013, 3 pm
    Small Seminar Room, Bldg. 510

    Hosted by: Anze Slosar

    Weak gravitational lensing (WL) is a powerful probe of cosmology, since it provides unbiased estimates of the large-scale distribution of dark matter and its evolution with cosmic time. To constrain the parameters of the standard model of cosmology through WL, a comprehensive deep and wide-angle imaging survey by using the Hyper Suprime-Cam (HSC) on the 8.2m Subaru Telescope will be carried out from the next year. In this talk, I will introduce my recent two WL studies. The one is WL measurement of a distant (z=0.81) cluster discovered by Atacama Cosmology Telescope, and the other is the WL measurement of massive galaxies surveyed by SDSS-III/BOSS with <z>~0.5 (CMASS galaxies) combined with clustering measurement. I will discuss how these studies can be extended to the HSC survey to put a stringent constraint on cosmological parameters.