Chapter 19: Key Words

You should be familiar with the following terms as well as terms from previous chapters:
  • Georges Lemaître
  • Sir Arthur Eddington
  • cosmology
  • Alexander Friedmann
  • Hubble–Lemaître law
  • Hubble constant
  • cosmological constant (\(\Lambda\))
  • primeval atom
  • Hubble time
  • Big Bang
  • cosmological redshift
  • “Big Stretch”
  • redshift parameter
  • steady-state theory
  • Sir Fred Hoyle
  • Arno Penzias
  • Robert Wilson
  • cosmic microwave background (CMB)
  • 2.7 K
  • distance ladder
  • standard ruler
  • standard siren
  • cosmological distance
  • dark energy
  • virtual particles
  • vacuum energy
  • vacuum pressure
  • cosmological principle
  • homogeneity
  • isotropy
  • Planck limits
  • Planck time
  • Planck length
  • Planck temperature
  • quantum gravity
  • equilibrium temperature problem
  • temperature variations problem
  • flatness problem
  • flat universe
  • closed universe
  • open universe
  • four fundamental forces
  • gravitational force
  • strong nuclear force
  • weak nuclear force
  • electromagnetic force
  • electroweak theory
  • grand unified theories (GUTs)
  • theory of everything (ToE)
  • string theory
  • graviton
  • cosmic inflation
  • quark
  • gluon
  • Big-Bang nucleosynthesis
  • radiation-dominated
  • CMB photons
  • era of the first atoms
  • decoupling
  • surface of last scattering
  • matter-dominated
  • first stars
  • reionization
  • \(\Lambda\)-cold dark matter (\(\Lambda\)-CDM)
  • dark-energy dominated
  • harmonics
  • particle horizon
  • observable universe
  • Hubble horizon
  • multiverse
  • many-worlds interpretation of quantum mechanics
  • bubble universes
  • brane theory
  • Big Freeze
  • Big Crunch
  • phantom energy
  • Big Rip
  • vacuum decay
  • false vacuum
  • true vacuum
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