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Primordial non-Gaussianity from LAMOST surveys |
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| Authors: | Yan Gong Xin Wang Zheng Zheng Xue-Lei Chen National Astronomical Observatories Chinese Academy of Sciences Beijing China Graduate University of Chinese Academy of Sciences Beijing China Institute for Advanced Study Einstein Drive Princeton NJ USA Center of High Energy Physics Peking University Beijing China Kavli Institute for Theoretical Physics China CAS Beijing |
| Institution: | Yan Gong1,2,Xin Wang1,Zheng Zheng3 , Xue-Lei Chen1,4,5 1 National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100012,China,2 Graduate University of Chinese Academy of Sciences,Beijing 100049,China 3 Institute for Advanced Study,Einstein Drive,Princeton,NJ 08540,USA 4 Center of High Energy Physics,Peking University,Beijing 100871,China 5 Kavli Institute for Theoretical Physics China,CAS,Beijing 100190 |
| Abstract: | The primordial non-Gaussianity (PNG) in the matter density perturbation is a very powerful probe of the physics of the very early Universe. The local PNG can induce a distinct scale-dependent bias on the large scale structure distribution of galaxies and quasars, which could be used for constraining it. We study the detection limits of PNG from the surveys of the LAMOST telescope. The cases of the main galaxy survey, the luminous red galaxy (LRG) survey, and the quasar survey of dif- ferent magnitude limits... |
| Keywords: | cosmology large scale structure |
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