You are studying a very distant quasar and are trying to determine how far away it is. The quasar is a very bright point-like light source, and there is only one relevant distance measuring technique applicable to objects at such a great distance. From a spectra of the quasar, you observe that it's Lyman alpha emission line (which would be at 121.6 nm in a laboratory sample of Hydrogen) is at 130 nm. What is the distance to this quasar in units of Mpc.
You are studying a very distant quasar and are trying to determine how far away it is. The quasar is a very bright point-like light source, and there is only one relevant distance measuring technique applicable to objects at such a great distance. From a spectra of the quasar, you observe that it's Lyman alpha emission line (which would be at 121.6 nm in a laboratory sample of Hydrogen) is at 130 nm. What is the distance to this quasar in units of Mpc.
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![You are studying a very distant quasar and are trying to determine how far away it is. The quasar is
a very bright point-like light source, and there is only one relevant distance measuring technique
applicable to objects at such a great distance. From a spectra of the quasar, you observe that it's
Lyman alpha emission line (which would be at 121.6 nm in a laboratory sample of Hydrogen) is at
130 nm.
What is the distance to this quasar in units of Mpc.
[Hint: Think about what distance measuring technique we use for the very farthest objects in the
universe. You will need to look up a special constant (who's value is uncertain) to complete this
problem. The answer accounts for the possible range of uncertainty in the quantity you need to
look up.]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3a74cc31-62f4-4982-89c3-ce8d7d2cfbb2%2F443b0ef9-1d83-4d2b-8055-60a5fdf132db%2Fkcs7pfs_processed.jpeg&w=3840&q=75)
Transcribed Image Text:You are studying a very distant quasar and are trying to determine how far away it is. The quasar is
a very bright point-like light source, and there is only one relevant distance measuring technique
applicable to objects at such a great distance. From a spectra of the quasar, you observe that it's
Lyman alpha emission line (which would be at 121.6 nm in a laboratory sample of Hydrogen) is at
130 nm.
What is the distance to this quasar in units of Mpc.
[Hint: Think about what distance measuring technique we use for the very farthest objects in the
universe. You will need to look up a special constant (who's value is uncertain) to complete this
problem. The answer accounts for the possible range of uncertainty in the quantity you need to
look up.]
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