In studying galaxies of various morphological types, scientists have estimated equivalent mass-to-light ratios (M/L) of about 1-30 in solar units (1 M_SUN/1 L_SUN), with ratios being lower for spiral galaxies and higher for elliptical galaxies.In galaxy clusters, however, the typical total mass-to-light ratio is estimated in the range 300-600 (M_SUN/L_SUN).What is the implication of these numbers?

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The Answer of In studying galaxies of various morphological types, scientists have estimated equivalent mass-to-light ratios (M/L) of about 1-30 in solar units (1 M_SUN/1 L_SUN), with ratios being lower for spiral galaxies and higher for elliptical galaxies.In galaxy clusters, however, the typical total mass-to-light ratio is estimated in the range 300-600 (M_SUN/L_SUN).What is the implication of these numbers?

In Studying Galaxies of Various Morphological Types, Scientists Have Estimated