5. If the extinction in the infra-red K-band (filter central wavelength = 2.13 micrometers) is = 550 nm), what 10-times less than it is in the optical V-band (filter central wavelength affect would a cloud with Ay = 2 have on the flux density observed in V and K if the star's intrinsic V-band apparent magnitude is 15?
5. If the extinction in the infra-red K-band (filter central wavelength = 2.13 micrometers) is = 550 nm), what 10-times less than it is in the optical V-band (filter central wavelength affect would a cloud with Ay = 2 have on the flux density observed in V and K if the star's intrinsic V-band apparent magnitude is 15?
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Transcribed Image Text:5. If the extinction in the infra-red K-band (filter central wavelength = 2.13 micrometers) is
10-times less than it is in the optical V-band (filter central wavelength 550 nm), what
affect would a cloud with Av 2 have on the flux density observed in V and K if the star's
intrinsic V-band apparent magnitude is 15?
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I think it wants us to calculate Mk how would we do this? We were given the equation m1-m2 = -2.5log to base 10 (f1/f2)
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