Welcome to CSST Emulator’s documentation!

CSST Emulator is a cosmological emulator for China Space Station Telescope (CSST) optical survey. This is a pure Python package that provides a simple and intuitive API for predicting the commonly used statistics, e.g., matter power spectrum. Its trainning data includes 129 high-resolution N-body simulations, which are generated by the modified version of the Gadget-4 code with 129 different cosmologies. So it can achieve a high accuracy in a wide range of cosmological parameters as followed.

Parameter	Lower Limit	Upper Limit
\(\Omega_b\)	0.04	0.06
\(\Omega_{cb}\)	0.24	0.40
\(H_0\)	60	80
\(n_s\)	0.92	1.00
\(A_s\times 10^{9}\)	1.7	2.5
\(w\)	-1.3	-0.7
\(w_a\)	-0.5	0.5
\(\sum M_{\nu}\)	0	0.3

The detailed cosmologies can be found in the Cosmology section. Check out the Quick Usage section for further information, including how to Installation the project.

Note

This project is under active development. You can visit the GitHub repository for the latest updates.

Contents

Emulator

• Quick Usage
  • Installation
  • Creating recipes
• CSST Emulator API
  • CEmulator
  • Cosmology
  • P2xi()
  • xi2P()

Data

• Cosmology
• Visualization

Acknowledgement

Feel free to contact <chyiru@sjtu.edu.cn> or leave an issue on the GitHub if you have any questions.