Stellar Spectroscopy

Chem-I-Calc: The Chemical Information Calculator

Chem-I-Calc is an open source python package for evaluating the chemical information content of resolved star spectroscopy. It takes advantage of the Fisher information matrix and the Cramér-Rao inequality to quickly calculate the Cramér-Rao lower bounds (CRLBs), which give the best theoretically achievable precision from a set of observations.

  • Install it from Github
  • Find the documentation here
  • Read the paper on the methods here

    • Galactic Chemical Evolution

    Chempy

    Flexible one-zone chemical enrichment model developed by Jan Rybizki.

  • Read more about it here
  • Download it from Github

    • Chempy-Widget

    Interactive iPython widget created for Jan Rybizki's Chempy. This is a great tool for building an intuition for how a system's star formation history is imprinted on its chemical composition.

  • Download it from Github
  • Play with it online