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ASCL Code Record

[ascl:1808.002] rsigma: Resonant disturbance

rsigma calculates the resonant disturbing function, R(sigma), for a massless particle in an arbitrary orbit perturbed by a planet in circular orbit. This function defines the strength of the resonance (its semi-amplitude) and the location of the stable equilibrium points (the minima). It depends on the variable sigma called critical angle and on the particle's orbital elements a, e, i and the argument of the perihelion. R(sigma) is numerically calculated and the code is valid for arbitrary eccentricities and inclinations, including retrograde orbits.

Code site:
http://www.fisica.edu.uy/~gallardo/atlas/2bmmr.html
Appears in:
https://ui.adsabs.harvard.edu/#abs/2019Icar..317..121G
Bibcode:
2018ascl.soft08002G

ascl:1808.002
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