2006-10-31 05:51:41 · 5 answers · asked by goring 6 in Science & Mathematics ➔ Astronomy & Space
Does the mass gain in a Galaxy change its spin velocity?
2006-10-31 07:59:29 · update #1
All stars in a galaxy will revolve around the center of the galaxy. The center of most galaxies is a black hole. These stars are orbiting the black hole, which causes the galaxy to spin.
2006-10-31 06:31:33 · answer #1 · answered by bldudas 4 · 0⤊ 0⤋
Only spiral galaxies have a well-defined axis of spin. Elliptical galxies do not. The stars still orbit the center of mass of such galaxies, but not in a uniform way like in spirals: they don't go around in the same direction, or in the same plane, etc. There are also various types of irregular galaxies that don't have a well defined spin axis.
2006-10-31 14:07:31 · answer #2 · answered by mathematician 7 · 0⤊ 0⤋
Pinwheel galaxies are spinning around and being devoured by black holes. Irregular galaxies are spewed from a white hole. Check their red shift.
2006-10-31 15:56:10 · answer #3 · answered by Pawnbroker1 1 · 0⤊ 0⤋
because when galxy's or on a smaller scale solar systems form they form out of a mass of spinning matter known as an accretion disc which condenses to form planets at distances (depending on their mass) from the object of greatest mass (i.e. the sun / galactic core) large objects close to the centre point are pulled in byu the stronger gravity hence you get large planets further out
2006-10-31 14:10:34 · answer #4 · answered by Anonymous · 0⤊ 0⤋
inertia from their formation
2006-10-31 13:55:29 · answer #5 · answered by t_roy_e 3 · 0⤊ 0⤋