What color hue is associated with older stars dominating Elliptical galaxies?
Answer
Reddish hues
When observed across long timescales, the stellar population within an elliptical galaxy predominantly consists of older, lower-mass stars that burn their nuclear fuel slowly over extended periods. These long-lived, mature stars emit light that, when aggregated and observed, results in a distinctly red appearance. This contrasts sharply with the blueish hues typically observed in spiral arms, which are indicative of the presence of hot, young stars that have recently formed from fresh gas reserves. The overall red appearance reinforces the impression of stability and age in elliptical systems.
Related Questions
Which galaxy type forms the fewest new stars currently?Where does high star formation activity occur in Spiral galaxies?What are the fundamental raw materials needed for new star formation?What is the primary mechanism creating the largest Elliptical galaxies?What color hue is associated with older stars dominating Elliptical galaxies?How is the star formation rate of Elliptical galaxies often described?What structural characteristic is destroyed during a spiral galaxy merger?What process involving hot cluster gas inhibits cooling and star formation?What kind of internal motion characterizes Elliptical galaxies post-merger?How does star formation in Spiral galaxies manage fuel supply?