hen which of the following statements hold?
1. Star A must be more luminous than star B.
2. Star A must be less luminous than star B.
3. Star A must be more massive than star B.
4. Star A must be less massive than star B.
I'm thinking 1 and 4 in this case, but this is tough, any other opinions?
2007-03-04 13:31:40 · 4 answers · asked by Jason G 1 in Science & Mathematics ➔ Astronomy & Space
The higher the mass, the greater the rate of fusion and therefore the more luminous the star.
So the answers are 1 and 3.
2007-03-04 13:34:06 · answer #1 · answered by Anonymous · 2⤊ 0⤋
1
2007-03-04 13:35:08 · answer #2 · answered by danny_boy_jones 5 · 0⤊ 0⤋
Gotta say 1 and 3 are true. When a star is more massive, the pressure of gravity in the core of the star is greater, which keeps everything closer together and hotter. This causes the rate of fusion to be higher. When the rate of fusion is higher, more matter is changed to energy in a given length of time, so more energy is released, which makes the more massive star more luminous as well.
2007-03-04 13:38:56 · answer #3 · answered by Dave O 3 · 0⤊ 0⤋
I would have thought 1 and 3. More massive stars have greater fusion rates than less massive stars.
2007-03-04 13:35:42 · answer #4 · answered by Rando 4 · 0⤊ 0⤋