Astrochemistry

This page will contain the necessary material for the exercise sessions on May 25, June 1, and June 8.

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Tutorial 1: molecular excitation:

• Einstein coefficients
• Intro radiative transfer and molecular excitation
• Problem set 1    
• Problem set 2    
• Solutions problem set 1    
• Solutions problem set 2    
• Solutions (slides) problem set 2    

Tutorial 2: rotational diagram & a small chemical network:

• Problem set 3     fluxes_pb3.dat     Solutions problem set 3    
• Problem set 4     Solutions problem set 4    

Tutorial 3: running & analyzing a single point chemical network:

• Important: please install the chemical network before the tutorial session.

  - It is best to do the following on university computers because the code needs some dependancies that are already installed on the university computers.

  - To download the chemical code go to https://uclchem.github.io/ and either click on 'Get a zip' or 'Get a tarball'.

  - Once it is downloaded, either unzip or untar it. To untar in the terminal use:

  tar -xvf the_name_of_tarball.tar

  Go to the main directory of the code that you just unzipped in the terminal using the command below:

  cd the_name_of_directory

  Then type

  pip install -r requirements.txt

  pip install .

  If everything goes fine, you should not get any error messages. For more information on the installation see: https://uclchem.github.io/docs/.

  Then go to https://home.strw.leidenuniv.nl/~leemker/astrochemistry/excercises.html, download the two python scripts under Tutorial 3 and put them in the main directory of the code above that you just installed. For more information on what we want to do feel free to take a look at the Problem set 5 that is already on the website.

  That's it! You are all set for the tutorial.

  Problem set 5     plot_astrochemistry.py     run_astrochemistry.py     Problem set 5 solutions