Probing primordial non-Gaussianity with Hyper Supreme-Cam survey and SDSS-III

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The primary goal of my research in FY2011 includes the development of new methods to test primordial non-Gaussianity to complement existing probes. The areas I looked at are related to the peculiar velocity. After some investigations I found that the modifications in velocity probes are not as strong as the previous discovered probes. I then focused my research and resource on the signature of modified gravity on large-scale structure and found that modified gravity models can be constrained by both the abundance and clustering of massive objects as well as the difference in the dynamical mass compared to the weak lensing mass.