Solution Found!
Suppose a star 1000 times brighter than our Sun (that is,
Chapter 7, Problem 31(choose chapter or problem)
Suppose a star \(1000\) times brighter than our Sun (that is, emitting \(1000\) times the power) suddenly goes supernova. Using data from Table \(7.3\):
(a) By what factor does its power output increase?
(b) How many times brighter than our entire Milky Way galaxy is the supernova?
(c) Based on your answers, discuss whether it should be possible to observe supernovas in distant galaxies. Note that there are on the order of \(10^{11}\) observable galaxies, the average brightness of which is somewhat less than our own galaxy.
Equation Transcription:
Text Transcription:
1000
7.3
1011
Questions & Answers
QUESTION:
Suppose a star \(1000\) times brighter than our Sun (that is, emitting \(1000\) times the power) suddenly goes supernova. Using data from Table \(7.3\):
(a) By what factor does its power output increase?
(b) How many times brighter than our entire Milky Way galaxy is the supernova?
(c) Based on your answers, discuss whether it should be possible to observe supernovas in distant galaxies. Note that there are on the order of \(10^{11}\) observable galaxies, the average brightness of which is somewhat less than our own galaxy.
Equation Transcription:
Text Transcription:
1000
7.3
1011
ANSWER:
Solution to 31PE
Step 1 of 4
In this question, we are asked to find the factor by which the output power of a star will increase when it becomes a supernova. Then we have to compare it with the Milky way galaxy. We have to discuss whether we are able to observe the supernovas in distant galaxies.
Given data
The output power of sun:
The output power of Milky way
The outpower of a supernova
