1. The 15th magnitude quasar 3C 279 becomes two magnitudes brighter in the optical over a 24 hour period. a) What is the maximum radius implied for the black hole itself?
Added by Sharon M.
Step 1
Magnitude is a logarithmic scale, so a change of two magnitudes corresponds to a change in brightness by a factor of 2.512 (since 2.512 is approximately equal to 10^(1/2), which is the factor by which brightness changes for each magnitude). Therefore, the quasar Show more…
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