A new type of object, called a Quercusar, has been discovered. The Quercusar appears to be a bright explosion that generates a bright pulse of light with a regular period. Observations of these type of objects in nearby galaxies suggest that the brightness of the object and the flickering period of the object are related. At the same distance, if Quercusar A is 0.2 times as bright as Quercusar B, then it flickers 2.0 times as quickly. a) Can these new objects be used as 'standard candles' to determine cosmological distances? Describe what properties of the Quercusar you are using to make your decision, and describe how standard candles are used to determine distances in astronomy.
A new type of object, called a Quercusar, has been discovered. The Quercusar appears to be a bright explosion that generates a bright pulse of light with a regular period. Observations of these type of objects in nearby galaxies suggest that the brightness of the object and the flickering period of the object are related. At the same distance, if Quercusar A is 0.2 times as bright as Quercusar B, then it flickers 2.0 times as quickly. a) Can these new objects be used as 'standard candles' to determine cosmological distances? Describe what properties of the Quercusar you are using to make your decision, and describe how standard candles are used to determine distances in astronomy.
Related questions
Question
6
Transcribed Image Text:a,b,c astronomy questions
Question 3:
A new type of object, called a Quercusar, has been discovered. The Quercusar appears to be a
bright explosion that generates a bright pulse of light with a regular period. Observations of these
type of objects in nearby galaxies suggest that the brightness of the object and the flickering period
of the object are related. At the same distance, if Quercusar A is 0.2 times as bright as Quercusar
B, then it flickers 2.0 times as quickly.
a) Can these new objects be used as 'standard candles' to determine cosmological distances?
Describe what properties of the Quercusar you are using to make your decision, and describe
how standard candles are used to determine distances
astronomy.
b) Is there a limit to the dis ances we can probe using these standard candles? Justify your
answer |
c) Name two other methods we have to measure cosmological distances in the Universe. How
are they limited in terms of the distances they can probe?
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps with 2 images
