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nIFTy Cosmology: Galaxy/halo mock catalogue comparison project on clustering statistics
Chia-Hsun Chuang, Cheng Zhao, Francisco Prada +21
We present a comparison of major methodologies of fast generating mock halo or galaxy catalogues. The comparison is done for two-point and the three-point clustering statistics. Th…
Hunting down systematics in baryon acoustic oscillations after cosmic high noon
Francisco Prada, Claudia G. Scoccola, Chia-Hsun Chuang +5
Future dark energy experiments will require better and more accurate theoretical predictions for the baryonic acoustic oscillations (BAO) signature in the spectrum of cosmological…
EZmocks: extending the Zel'dovich approximation to generate mock galaxy catalogues with accurate clustering statistics
Chia-Hsun Chuang, Francisco-Shu Kitaura, Francisco Prada +2
We present a new methodology to generate mock halo or galaxy catalogues, which have accurate clustering properties, nearly indistinguishable from full -body solutions, in terms…
Problems with twilight/supersky flat-field for wide-field robotic telescopes and the solution
Peng Wei, Zhaohui Shang, Bin Ma +3
Twilight/night sky images are often used for flat-fielding CCD images, but the brightness gradient in twilight/night sky causes problems of accurate flat-field correction in astron…