Solved

If a Seyfert Galaxy's Nucleus Varies in Brightness on the Timescale

Question 58

Multiple Choice

If a Seyfert galaxy's nucleus varies in brightness on the timescale of 10 hours, then what is the approximate upper limit for the size of the emitting region?


A) 20 AU
B) 30 AU
C) 50 AU
D) 70 AU
E) 120 AU

Correct Answer:

verifed

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Related Questions

Q53: A certain spectral line of rest wavelength

Q54: How does the appearance of an AGN

Q55: You observe a reddish galaxy with stars

Q56: How do we explain that "billions of

Q57: If you measure the velocity of a

Q59: Which of the following functions correctly

Q60: If an AGN varies its brightness on

Q61: Why is a higher percentage of distant

Q62: How do we know that many elliptical

Q63: What caused early astronomers to believe that