Study Guide for the final exam ------------------------------ Stellar Evolution: Main sequence stars (H->He nuclear fusion) Red giants Low and intermediate mass stars, Planetary Nebula High mass stars; fusion of chemical elements up to Iron Supernova from massive stars Supernova from explosion of White Dwarfs in binary systems Stellar corpses: White Dwarfs, electron degeneracy pressure Neutron Stars, neutron degeneracy pressure, pulsars Black Holes, event horizon, escape velocity Accretion disks, X-ray binaries Nuclear fusion vs. nuclear fission Relativity; speed of light Milky Way Galaxy: disk, bulge, globular clusters Spiral arms, 21 cm line of neutral Hydrogen Interstellar medium, star-gas-star cycle, dust obscuration Center of our Galaxy, supermassive black hole Galaxies: Spirals, Ellipticals, Irregulars Distances to galaxies: Cepheids (& other variable stars), Main Sequence Fitting, White Dwarf Supernova, Hubble Law Hubble constant, the expansion age of the Unvierse Cosmological Principle Observable Universe Fate of the Universe: expand forever Masses of galaxies: rotation curves, gravitational lensing Dark Matter: WIMPs and MACHOs; grav. microlensing in the Galaxy Collisions and mergers of galaxies Local Group of galaxies Supermassive Black Holes in the centers of other galaxies Quasars: accretion disks and jets Early Universe; Production of Helium (Big-bang Nucleosynthesis) Cosmic Microwave Background; Accelerated expansion of the Universe and Dark Energy