Astrophysical Plasma by Professor G Srinivasan
International Centre for Theoretical Sciences via YouTube
Overview
Syllabus
Summer course 2018 - A Random walk in astro-physics
Astrophysical Plasma Lecture - 07
A Plasma is a quasi-neutral gas of charged and neutral particles which exhibits "collective behaviour"
Plasma
Dielectric Screening
An energy-loss spectrum for a thin AI film
Dispersion relation of waves in a plasma
Earth's IONOSPHERE
Group velocity, Phase velocity, Refractive index
The group velocity
Dispersion of Pulsar signals
Pulsar De-dispersion
Faraday Rotation
Dielectric constant
M4: The Milky Way Magnetic Field Mapping Mission
Cerenkov Radiation
NGC 5775
Nobel Prize in Physics 1958
From Tamm's Nobel Lecture:
Cherenkov Radiation
Cerenkov light emitted by electrons in a "swimming pool nuclear reactor"
The wave vector and frequency of an electromagnetic wave in a transparent medium are related by
Let theta be the angle between the direction of motion and the direction of emission.
Shock wave in a gas
Ooty
Detection of Cerenkov light emitted by electrons underlies most of the modern neutrino detectors.
Plasma effect on Synchrotron Intensity
Relativistic Beaming
Next Lecture: The Origin of Stellar Energy
Q&A
Taught by
International Centre for Theoretical Sciences