This is an astronomy question: Two stars, both with surface temperatures of 9700 K, deposit 1000...

This is an astronomy question:

Two stars, both with surface temperatures of 9700 K, deposit 1000 photons/second and 3200 photons/second on our detector (of unit size), respectively, when observed with a V filter (visual).

(a) How do their V-band magnitudes compare (i.e. what is V1 - V2)?

(b) How do their B magnitudes compare?

Student's note: I'm deeply confused on how to even begin this. Please show work so I can understand this. It's not clear to me whether I'm supposed to do a calculation to determine V magnitudes and B magnitudes knowing only temp and flux or whether I'm supposed to be looking something up on a table somewhere. I just don't know where to start. Thank you

Expert Solution

genius_generous answered 2 years ago

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