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The group velocity
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Astrophysical Plasma by Professor G Srinivasan
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- 1 Summer course 2018 - A Random walk in astro-physics
- 2 Astrophysical Plasma Lecture - 07
- 3 A Plasma is a quasi-neutral gas of charged and neutral particles which exhibits "collective behaviour"
- 4 Plasma
- 5 Dielectric Screening
- 6 An energy-loss spectrum for a thin AI film
- 7 Dispersion relation of waves in a plasma
- 8 Earth's IONOSPHERE
- 9 Group velocity, Phase velocity, Refractive index
- 10 The group velocity
- 11 Dispersion of Pulsar signals
- 12 Pulsar De-dispersion
- 13 Faraday Rotation
- 14 Dielectric constant
- 15 M4: The Milky Way Magnetic Field Mapping Mission
- 16 Cerenkov Radiation
- 17 NGC 5775
- 18 Nobel Prize in Physics 1958
- 19 From Tamm's Nobel Lecture:
- 20 Cherenkov Radiation
- 21 Cerenkov light emitted by electrons in a "swimming pool nuclear reactor"
- 22 The wave vector and frequency of an electromagnetic wave in a transparent medium are related by
- 23 Let theta be the angle between the direction of motion and the direction of emission.
- 24 Shock wave in a gas
- 25 Ooty
- 26 Detection of Cerenkov light emitted by electrons underlies most of the modern neutrino detectors.
- 27 Plasma effect on Synchrotron Intensity
- 28 Relativistic Beaming
- 29 Next Lecture: The Origin of Stellar Energy
- 30 Q&A
