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Aerodynamic drag and J2#125

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adamdempsey90 wants to merge 3 commits intodevelopfrom
dempsey/drag2
Draft

Aerodynamic drag and J2#125
adamdempsey90 wants to merge 3 commits intodevelopfrom
dempsey/drag2

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@adamdempsey90 adamdempsey90 commented Apr 16, 2026

Background

This adds one model of aerodynamic drag to the Nbody particles as well as a J2 component to their potential.

Still draft. TODO

  • Test
  • Include J2 in particle-particle gravity? Or find out how to add this to rebound if possible.
  • Add a spin axis unit vector to the particles and use that in the J2.

Closes #124

Description of Changes

Checklist

  • New features are documented
  • Tests added for bug fixes and new features
  • (@lanl.gov employees) Update copyright on changed files
  • Any contribution that was created or modified with the assistance of generative AI must have a comment disclosing this such as // This file was created in part or in whole by generative AI

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Add drag and J2 to particles

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