The HI intensity vs. velocity curve for a disk galaxy has a width W = 400 kms ¹. This galaxy has a pitch angle of 20°, a bulge-to-total luminosity of 7%, and a mass-to-light of 2.5. What is its absolute B-band magnitude and why?
The HI intensity vs. velocity curve for a disk galaxy has a width W = 400 kms ¹. This galaxy has a pitch angle of 20°, a bulge-to-total luminosity of 7%, and a mass-to-light of 2.5. What is its absolute B-band magnitude and why?
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Transcribed Image Text:The HI intensity vs. velocity curve for a disk galaxy has a width W = 400 km s-. This
galaxy has a pitch angle of 20°, a bulge-to-total luminosity of 7%, and a mass-to-light of
2.5. What is its absolute B-band magnitude and why?
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