Celestial Dynamics

for undergraduate students.

Time:2023 Sping, Monday 3-4 (bi-weekly), Friday 3-4
Class Room:Lixing Building 2306
Exam:30% homework + class 20% + numerical homework 20% + 30% final exam

Lectures are used for teaching in YNU only. Do not distribute outside the class without permission.
  • Lecture 1: lecture_1_intro

    date: Feb 24,
    introduction of celestial dynamics, math test, …

  • Lecture 2: lecture_2_math

    date: Mar 3,
    math intro, vector, gradient, divergence, curl, coordinates, …

  • Lecture 3: lecture_3_mechanics1

    date: Mar 10,
    mechanics, Lagrange equations …

  • Lecture 4: lecture_4_potential

    date: Mar 17,
    poisson equation, potential-density pairs …

  • Lecture 5: lecture_5_orbit_1

    date: Mar 24,
    orbit in static spherical potential, two-body problem …

  • Lecture 6: lecture_6_stability

    date: Mar 31,
    Variational Methods, Euler’s equation, A First Integral, Classification of Equilibria, stability…

  • Lecture 7: lecture_7_orbit_2

    date: Apr 07,
    orbits in axisymmetric potential, epicycle approximation, oort constant, orbits in rotating potentials, restricted three body problem …
    lecture for numerical ode
    python script for numerical homework

  • Lecture 8: lecture_8_collisionless

    date: Apr 14,
    relaxation timescale, Collisionless Boltzmann Equation, Jeans Equation ,The Virial Equations …

  • Lecture 9: lecture_9_equilibrium

    date: Apr 21,
    The Choice of Equilibrium, Gravothermal catastrophe, Jeans instability, Toomre’s parameter …

  • Lecture 10: lecture_10_extrasolar_planets

    date: Apr 28,
    topic review, extrasolar planets, detection methods, formation of protostar/planet …

  • Lecture 11: lecture_11_BHB

    date: May 5,
    dynamical friction, BH binary evolution, final pc problem, slingshot effect …

  • Lecture 12: lecture_12_galaxy_rotation

    date: May 12,
    galaxy intro, milky-way rotation curve, external galaxy rotation curves, SgrA mass determination from orbit …

  • Lecture 13: lecture_13_resonance

    date: May 19,
    resonance, spin-orbit, mean motion, secular resonance. secular evolution in spiral galaxy, weak bar approximation, corotation/lindblad resonance …

  • Lecture extra: lecture_linear_system

    date: May 22,
    numerical methods for solving linear system, Multivariate Newton’s Method …

  • Lecture 14: lecture_14_TDE

    date: May 26,
    tidal force, tides due to the moon, tidal disruption, TDEs … …

  • Lecture 15: lecture_15_perturbation

    date: Jun 2,
    perturbation methods, Encke’s Formulation, Variation of Parameter, Perihelion precession of Mercury, …

  • Lecture extra: lecture_distribution_function_montecarlo

    date: Jun 5,
    distribution function, monte-carlo method …

  • Lecture 16: lecture_16_blackhole

    date: Jun 9,
    black hole physics, particle orbit around BH, astrophysical BH observations …

  • Lecture 17:

    date: Jun 16,
    final test

  • Lecture extra: lecture_IMBH

    date: Jun 19,
    intermediate mass black hole, star clusters, spitzer instability, IMBH observations …

  • Lecture 18: lecture_17_binaries

    date: Jun 25,
    binaries, roche lobe overflow, 3-body interactions, kozai-lidov resonance, gravitational wave intro …

End of Semester.