Table of Contents
- 1 What is the origin of the cosmic background radiation quizlet?
- 2 What form of energy is the cosmic background radiation?
- 3 What are the characteristics of the spectrum of the cosmic background radiation?
- 4 What is the cosmic horizon problem?
- 5 What does the cosmic microwave background tell us?
- 6 What exactly is cosmic microwave background radiation?
What is the origin of the cosmic background radiation quizlet?
Terms in this set (8) The cosmic microwave background (CMB) is the thermal radiation left over from the time of recombination in Big Bang cosmology.
What form of energy is the cosmic background radiation?
electromagnetic radiation
Cosmic background radiation is electromagnetic radiation from the Big Bang. The origin of this radiation depends on the region of the spectrum that is observed. One component is the cosmic microwave background.
What is the cosmic horizon ‘?
The particle horizon (also called the cosmological horizon, the comoving horizon, or the cosmic light horizon) is the maximum distance from which light from particles could have traveled to the observer in the age of the universe.
What are the ripples in the cosmic background radiation and what caused them?
These ripples reflect the architecture of the universe when the light was freed, and the subsequent cosmic structures (galaxies and clusters of galaxies) as the light passed by them on its journey through space and time.
What are the characteristics of the spectrum of the cosmic background radiation?
The universe is infinite and uniformly filled with stars. What are the characteristics of the spectrum of the cosmic background radiation? It is a black body curve with a wavelength of maximum intensity of about one millimeter and is a continuous spectrum that is redshifted into the microwave band.
What is the cosmic horizon problem?
The horizon problem describes the fact that we see isotropy in the CMB temperature across the entire sky, despite the entire sky not being in causal contact to establish thermal equilibrium. In reality, the CMB has the same temperature in the entire sky, 2.726 ± 0.001 K.
Is the cosmic background radiation always uniform?
That light, the cosmic microwave background radiation (CMBR), comes to us from every direction in the sky, uniform except for faint ripples and bumps at brightness levels of only a few part in one hundred thousand, the seeds of future structures like galaxies.
Is cosmic background radiation dark-matter and/or dark-energy?
Neither dark matter nor dark energy can be seen in the electromagnetic spectrum—that’s why it’s “dark”—whereas the cosmic background radiation is electromagnetic radiation.
What does the cosmic microwave background tell us?
Cosmic Microwave Background: Big Bang Relic Explained (Infographic) The CMB radiation tells us the age and composition of the universe and raises new questions that must be answered. The Cosmic Microwave Background, or CMB, is radiation that fills the universe and can be detected in every direction.
What exactly is cosmic microwave background radiation?
The Cosmic Microwave Background radiation, or CMB for short, is a faint glow of light that fills the universe, falling on Earth from every direction with nearly uniform intensity.