Tutorials

• Cross Sections for Beginners
  • Downloading a Line List
  • Computing a Cross Section
  • Reading in and Plotting a Cross Section
• Computing Cross Sections for a Grid of Pressures and Temperatures
  • Pressure Grid
  • Temperature Grid
• Comparing Cross Sections of Different Isotopologues
  • Download Isotopologue Line Lists
  • Calculate Isotopologue Cross Sections
• Computing Cross Sections with Different Broadening Parameters
  • Download CO line list and \(\rm{H_2}\)-\(\rm{He}\) broadening files from ExoMol
  • Cthulhu’s Default Pressure Broadening
  • Adding custom broadening files
  • Computing and Plotting Cross Section
• Atomic and Ionic Cross Sections
  • VALD3 Database
  • Creating Ca I and Ca II Cross Sections
• Running Cthulhu on a Cluster
  • Option 1: Python script in cluster mode (e.g. many atoms)
  • Option 2: Multiple nodes in parallel (e.g. molecules with large line lists)