Relationship To The Red Clump
A related class of stars is the clump giants, those belonging to the so-called red clump, which are the relatively younger (and hence more massive) and usually more metal-rich population I counterparts to HB stars (which belong to population II). Both HB stars and clump giants are fusing helium to carbon in their cores, but differences in the structure of their outer layers result in the different types of stars having different radii, effective temperatures, and color. Since color index is the horizontal coordinate in a Hertzsprung-Russell diagram, the different types of star appear in different parts of the CMD despite their common energy source. In effect, the red clump represents one extreme of horizontal branch morphology: all the stars are at the red end of the horizontal branch, and may be difficult to distinguish from stars ascending the red giant branch for the first time.
Read more about this topic: Horizontal Branch
Famous quotes containing the words relationship to, relationship and/or red:
“Film music should have the same relationship to the film drama that somebody’s piano playing in my living room has to the book I am reading.”
—Igor Stravinsky (1882–1971)
“Artists have a double relationship towards nature: they are her master and her slave at the same time. They are her slave in so far as they must work with means of this world so as to be understood; her master in so far as they subject these means to their higher goals and make them subservient to them.”
—Johann Wolfgang Von Goethe (1749–1832)
“I spent my life mixin’ with your breed, and I don’t like it. Get me. You can hide behind a lot of red tape, crooked lawyers and politicians with the gimmes, writs of habeas corpus, witnesses that don’t remember overnight, but we’ll get through to you, just like we got all the rest.”
—Ben Hecht (1893–1964)