Galaxies: Structure and Evolution |
Contents
Observations of the Galaxy | 22 |
Properties of external galaxies | 54 |
Stellar dynamics | 86 |
Copyright | |
5 other sections not shown
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Common terms and phrases
accretion appear approximately Cepheid Chapter chemical composition Chemical Elements clusters of galaxies collisions constant cosmic rays cosmological deceleration parameter discussion disk stars distance distant galaxies elliptical galaxies equation estimate evolution of galaxies galactic centre galactic disk galactic evolution galactic masses galactic midplane galactic rotation galaxy formation gas clouds globular clusters gravitational field heavy element abundance heavy element content highly flattened Hubble hydrogen individual stars initial intergalactic medium interstellar gas interstellar medium ionization low mass stars luminosity magnetic field magnetic induction main sequence main sequence stars mass distribution mass loss massive haloes matter mean density molecules motion observations obtained particles point mass possible present properties quasars radiation radius random velocities redshift regions relative rotation curve shown in fig solar neighbourhood spherical spheroidal spiral galaxies spiral structure standard candles standard of rest star clusters star formation stars formed stellar Telescope theory total mass Universe