Multiple Choice
The Tully-Fisher relation correlates the
A) width of the 21-cm line of hydrogen in a spiral galaxy with luminosity.
B) redshift of spectrum lines with elliptical galaxy brightness.
C) splitting of spectrum lines in lenticular galaxies with magnetic field strength.
D) strength of Ca lines in irregular galaxies with dark matter proportion.
Correct Answer:
Verified
Correct Answer:
Verified
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