Primordial Non-Gaussianity from LAMOST Surveys

Understand

The primordial non-Gaussianity (PNG) in 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 on 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 different magnitude limits are considered.