Multiple Choice
Why can Type I supernovae be used to determine a galaxy's distance?
A) Type I supernovae occur only in very luminous galaxies.
B) Type I supernovae have approximately the same luminosity.
C) Type I supernovae have approximately the same size.
D) A Type I supernova occurs in a typical galaxy about once every 100 years.
E) Type I supernovae occur even in very small galaxies.
Correct Answer:
Verified
Correct Answer:
Verified
Q20: If we lived in a galaxy one
Q21: In the figure shown below, the upper
Q22: What do astronomers mean when they say
Q23: Hubble's constant, H<sub>0</sub>, represents:<br>A) the rate of
Q24: What is the interpretation of a redshift
Q26: Which of the following was NOT created
Q27: Why are some galaxies' spectra blueshifted rather
Q27: The spectrum of a galaxy is
Q29: If the Hubble constant had a value
Q74: According to Hubble's law, as the distance