Lectures in course PHYS-209: Astrophysics I: introduction to astrophysics

Explores physical concepts in astrophysics and their interpretation of observations from telescopes.

Delves into measuring the Hubble constant using quasar time delays.

Covers astronomical units, light years, parallax, exoplanets, stars, nebulae, and galaxy clusters.

Covers space, stars, the solar system, nebulae, and galaxy clusters.

Covers the Kepler Laws, orbital motion, reduced mass, and orbital periods.

Covers Kepler's three laws, explaining planet motion around the sun.

Covers the Virial Theorem in astrophysics and the calculation of potential energy for spheres.

Explores the Virial Theorem, connecting kinetic and potential energy in self-gravitating systems.

Explores the time evolution of self-gravitating systems and the conservation of energy.

Explores the Virial theorem in astrophysics through numerical illustrations and energy balance in self-gravitating systems.

Covers the role of photons in energy transport, energy measurement in astrophysics, photon energy distribution, and various radiation phenomena.

Covers photon energy transport, different spectra types, and radiation processes in astrophysics.

Covers the fundamentals of black body radiation and the hydrogen atom in astrophysics.

Explores black body radiation and atomic lines in astrophysics.

Covers the analysis of light from celestial bodies in astrophysics.

Covers the measurement of radiation in astrophysics, including optical filters and analysis of light.

Covers the Doppler-Fizeau Effect, redshift, gas cloud motion, and exoplanet search.

Covers the Doppler-Fizeau effect in astrophysics, including redshift, star rotation, and the search for exoplanets.

Explores the size of nebulae, ionization, light absorption, and celestial body colors in astrophysics.

Covers molecular hydrogen, emission lines, and the color of stars.