3) Supernova Luminosity a) Type I supernovae all have absolute magnitudes of about M = -19. What is their luminosity relative to the luminosity of the sun? (Recall, each difference of one in absolute magnitude corresponds to a factor of 100^{1/5} in luminosity. For this problem you can approximate the absolute magnitude of the sun to be M = 5.) b) Andromeda Galaxy has a luminosity that is about 30 billion times larger than the luminosity of our sun. Suppose a Type I supernova occurs in Andromeda. What is the luminosity of the supernova divided by the luminosity of the rest of Andromeda? This corresponds to the fractional increase in Andromeda's luminosity that we can expect during a supernova. (The last time astronomers observed a supernova in
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Determine the type of supernova. Type I supernovae are all of the same type, and all have an absolute magnitude of about -19. So, their luminosity relative to the luminosity of the sun is 1001/5. Show more…
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