Red-shift Flashcards
1
Q
Red-shift
A
The observed increase in the wavelength and decrease in frequency of light from distant galaxies as they move further away. Their absorption lines are being Doppler shifted to the red end of the spectrum
2
Q
Absorption lines
A
Light absorbed by elements in the star’s atmosphere
3
Q
Steady state theory
A
-universe expands, creating new galaxies
-universe has no begging, middle or end
-isn’t supported by CMB radiation
4
Q
Big Bang theory
A
-universe began in a massive explosion from a single point
-universe is expanding
-supported by CMB radiation thought to be left over from the Big Bang
