Liger IRIS Simulator Documentation

This package (liger_iris_sim) creates simulated Liger and IRIS data products. It support all modes for both the imager and IFS.

Installation

• Installation
  • Python Environment
  • Install from GitHub
  • Configure Resources Directory
    • Required! - Download Resources

Quickstart

• Quickstart
  • PSFs
  • Source Creation
  • Sky Background
  • Throughput
  • Expose

Examples

• Examples
  • Imager
    • Field of Stars — Liger Imager
      • Instrument and exposure parameters
      • Load filter data and compute throughput
      • Get the PSF
      • Create a field of stars
      • Sky background
      • Run the exposure simulation
      • Visualize results
  • IFS
    • Field of Stars — Liger IFS
      • Instrument and exposure parameters
      • Load filter data and compute throughput
      • Build the wavelength grid
      • Define field of stars and spectrum
      • Load PSF
      • Compute sky emission and transmission
      • Create a field of stars
      • Run the IFS exposure simulation
      • Visualize results
    • Galaxy at z~1 in H-alpha - Liger IFS
      • Load the galaxy input cube
      • Instrument and exposure parameters
      • Load filter data and build wavelength grid
      • Compute total throughpout
      • Load PSF
      • Compute sky emission and transmission
      • Resample the galaxy cube to the observed IFS grid
      • Run the IFS exposure simulation
      • Visualize results
        • Peak-SNR spaxel spectrum
    • Stellar Velocity Mapping — Liger IFS
      • Instrument and exposure parameters
      • Filter, throughput, and wavelength grid
      • Define emission line sources for simplicity instead of stellar spectrum
      • Load PSFs
      • Sky background
      • Build source cube and simulate exposure
      • SNR map
      • Velocity map recovery
  • Up the Ramp
    • Up-the-Ramp Readout Simulation — Liger Detector
      • Detector and readout parameters
      • Run the UTR simulation
      • Single-pixel ramp and fitted slope
        • The simple slope estimate below is wrong due to saturated pixels and nonlinearity.
      • Slope map from linear fits

API

• API Reference
  • liger_iris_sim.sky
  • liger_iris_sim.sources
  • liger_iris_sim.expose
  • liger_iris_sim.utr
  • liger_iris_sim.utils