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MESA Summer School Urca Labs

  • Lab Goals
  • Playing Along With These Notes

Initial Concepts: WDs and degeneray (pre-lab 1)

  • Degeneracy and White Dwarfs
  • EOS regimes
  • White dwarf star structure
  • Lab 1 model profiles

More Concepts: Reactions (pre-lab 2)

  • Reaction networks
  • Carbon burning products
  • O-burning
  • Electron-capture / β-decay

Putting It Together (pre-lab 3)

  • Lab model revisited
  • Networks used in labs
  • Aside: A = 23 vs. A = 24
  • Visualizing Urca shell
  • Visualizing MESA reactions
  • Finding other important rates

Integrating Reaction Networks

  • Reaction Networks 101
  • Stiff ODEs / Implicit Methods
  • Implicit Methods for Systems of ODEs
  • Implicit Methods and Nonlinear Systems
  • CNO Burning Example
  • CNO via pynucastro
  • Rate Approximations
  • Equilibrium
  • Repository
  • Open issue

Index

By Michael Zingale