Physics of Solar System


Thursday 9:00-10:00, Bragg
Friday 9:00-10:00, Bragg

Albert Zijlstra (Alan Turing Building, 3.138)


Lecture notes, worked examples, Tutorial sheets, example exam papers, and supplementary material are available from this web page.

Lecture notes will be added a few days after the lecture.

recently added Lecture 22, Tutorial sheet 5 solution

notices

There will be no lectures for this course during week 12: the last lecture was Friday May 7. Happy revising!
 [ Craters on Phobos ]

Topics


Lecture 1: Introduction. (See here for high resolution figures of abundances)
Lecture 2: Basic facts and observations; History; Tour of the Solar System
Lecture 3: Coordinate systems and time keeping
Lecture 4: Planetary motions; synodic and siderial periods

Supplementary information:
  • Tour of the Solar System : Slide show shown during the lecture
  • Inventory of the Solar System : images and basic information on each planet
  • "The nine planets": an out-of-date name but up-to-date information

  • Views of Distant Earth
     [ Earthrise ]
    2. A matter of gravity

    Lecture 4: Kepler's laws
    Lecture 5: Newton's law of gravity
    Lecture 6: binary motion; Properties of orbits; observational evidence
    Lecture 7: Gravitational potential; virial theorem
    Lecture 8:Tidal forces; Lunar and solar tidal force; height of the tides; Resonance
    Lecture 10: Tidal friction and tidal heating; Evolution of the Moon; Tidal forces in the solar system; Roche limit; The kamikaze comets
    Lecture 11: Orbits; Reduced mass; Energy and velocities
    Lecture 12: Hohman transfer orbits; Slingshots; Capture cross sections; Lagrangians points; Lisajous and horsehoe orbits
     [ In the shadow of Saturn  ]
    3. The Sun

    Lecture 13: Basic data. Freefall time scale; Kelvin Helmholtz time scale. Hydrostatic equilibrium; Nuclear reactions.
    Lecture 14: Neutrinos; Energy transport; Surface of the Sun; Black body radiation; granulation, sunspots and mass ejections
    Lecture 15: Sounds of the Sun
     [ The Sun ]
    Information on the Sun
    4. Planetary atmospheres

    Lecture 15: Atmospheres: introduction. Albedo and optical depth.
    Lecture 16: Temperatures; greenhouse effect. Scale height of the atmosphere.
    Lecture 17: Escape: why the Moon has no atmosphere. Composition. Reducing versus oxidizing atmospheres;
    Lecture 18: Clouds on Earth and elsewhere

     [ Ice clouds on Mars ]

    5. Planetary surfaces

    Lecture 18: Impact craters
    Lecture 19: Crater of doom. Regolith. Dating with craters and isotopes
      More on craters:
    • Craters: Examples of known impact structures
    • Earth impact database A list of confirmed impact structures from around the world
    • Ries Largest impact structure in Europe
    • The Vredefort Dome The largest known crater on Earth
    • Effects Earth Impact Effects Program: calculate the effects of your favourite impact
     [ Craters on Mercury ]
    6. Planetary interiors

    Lecture 20: Evidence for liquid cores; Earthquakes; Core sizes; Heat generation and internal energy budget; radioactivity
    Lecture 21: Composition of terrestrial planets and gas giants; magnetic fields
     [ Mercury interior]
    7. Origin

    Lecture 22: The formation of the solar system
     [ Late heavy bombardment ]


    Worked examples

    1. Earth's radius; Coordinates
    2. Solar System travel
    3. Tidal stability of a hot Jupiter
    4. The temperature of the Moon
    5. The scaleheight of the Earth's atmosphere
    6. Isotope dating of the Moon

    Tutorial sheets

    You will need the lists of physical constants. Parameters of the planets were given out during the first lecture: the hand-out is available on request during the lectures.

    Tutorial sheet 1 (handed out during Lecture 5) with short answers and full solutions
    Tutorial sheet 2 (handed out during Lecture 8) with short answers and full solutions
    Tutorial sheet 3 (handed out during Lecture 12) with short answers and full solutions
    Tutorial sheet 4 (handed out during Lecture 16) with short answers and full solutions
    Tutorial sheet 5 (handed out during Lecture 19) with full solutions

    Past Exams

    Exam paper 2006 with short answers
    Exam paper 2007 with short answers
    Exam paper 2008 with short answers
    Exam paper 2009 with short answers

    Recommended books


    For background, descriptive reading (but not required for the exam)
    Two other books give more physics, covering all of astrophysics.

    Other sites of interest

    The Manchester astronomical society has public lectures of interest
    See the BBC for a good site on the Solar System. Not much physics, but lots of up-to-date information and great pictures.