Introduction to Astrophysics

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Week 1:
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** Video 1.1: (23:00 min)
- Parallaxes and Parsec
- General Introduction
- Mass and Distance scales

** Video 1.2: (14:42 min)
- Kepler's Laws

** Vidéo 1.3: (11:58 min)
- Virial Theorem
- Potential Energy of a Sphere

** Vidéo 1.4: (4:38 min)
- Numerical Illustrations of Virial Theorem

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Week 2:
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** Video 2.1: (23:55 min)
- Radiation processes in Astrophysics
- Line and Continuum Radiation
- Examples of Spectra
- Radiated Energy and Units
- Radiation Pressure
- Bremsstrahlung and Synchrotron Radiations

** Video 2.2: (20:15)
- Black Body Radiation
- Total Luminosity (sigma T^4)
- Wien's Law
- Atomic Emission Lines
- The Case of Hydrogen

** Video 2.3: (21:00)
- How to Measure Radiation
- Flux, Luminosity, Filters
- Illustration: How do we Make True Color Images?
- Magnitudes
- Color of Celestial Bodies
- Distance Modulus

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Week 3:
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** Video 3.1: (23:44)
- Doppler Effect
- Doppled Measurement
- Stellar Rotation
- Exoplanets and Stellar Radial Velocities
- Hubble Law

** Video 3.2: (32:22)
- Interstellar Medium
- Nebular Emission, Stromgroen Sphere
- Absorption, diffusion (Mie et Rayleigh)
- Optical Depth
- Redening

** Video 3.3: (18:12)
- Tidal Forces
- Influence on Moon-Earth Distance
- Distance to the Moon Using Laser Measurements

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Week 4:
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** Video 4.1: (12:14)
- Roche Limit
- Example of Saturn's Rings
- Example of a Comet Disrupted by Jupiter's Tidal Forces

** Vidéo 4.2 (13:43)
- Cometary Tails and Radiation Pressure

** Video 4.3: (15:08)
- Energy Balance
- Global Warming

** Video 4.4:
- Planetary Atmospheres
- Hydrostatic Equilibrium
- Atmospheric height-scale

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Week 5:
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** Video 5.1:
- Stellar Formation
- Free-fall Time
- Jeans' Mass and radius
- Kelvin-Helmholtz Time
- Stellar Energy Balance

** Video 5.2:
- HR Diagram
- Spectral Classification
- Effect of Redening
- Radius-Luminosiy Relation

** Video 5.3:
- Stellar Evolution in the HR Diagram
- Stellar Deaths
- Supernovae, Planetary Nebulae, White Dwarfs, Neutron Stars
- Age of Stellar Clusters

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Week 6:
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** Video 6.1:
- Galaxies: General Description
- Morphological Classification

** Video 6.2:
- Numerical Illustrations

** Video 6.3
- The Milky-Way
- Oort Constants and Galactic Motion

** Video 6.4:
- Rotation Curves of Spiral Galaxies
- Elliptical galaxies and the Virial Theorem
- Galaxy Clusters
- Dark Matter

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Week 7:
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** Video 7.1:
- Big Bang: Basic Presentation
- Hubble Expansion
- Cosmological Redshift
- Cosmic Background Radiation

** Video 7.2:
- Distance Ladder
- Hubble Diagram
- Cepheides as Distance Indicators
- Supernovae as Distance Indicators

** Video 7.3:
- Gravitational Lenses
- Deflection Angle
- Properties of Gravitational Lenses
- Light (apparent) Magnification
- Einstein Radius
- Caustics and Critical Lines

** Complementary video on time delays in gravitationally lensed quasars an cosmologocal applications.