Are super massive black holes the reason why spiral galaxies spin?

Question

Are super massive black holes the reason why spiral galaxies spin?

Answer 1

I think it is. It always seemed unreasonable to me that all those stars and stuff simply orbited around its own center of mass. The discovery of super massive black holes makes it all much more plausible to me.

Answer 2

No but there are a black hole in the middle of each galaxy. It furnishes the gravity for the orbiting of all the solar systems.  

Answer 3

Hope not. I like Galaxies without giant holes in the center.

Answer 4

If the black hole was there first, yes. Black holes are believed to form accretion disks as materials falls into them. This would eventually extend throughout the galaxy as it forms around the black hole.

If the black hole formed after the galaxy, then no. Incredible amounts of dust and hydrogen condense and eventually as stars form, some point will contain slightly more material, and become the center. As it draws more material towards it, angular momentum will begin to impart spin and off things go. The center may become so dense that it eventually forms a black hole, which will then form an accretion disk in the same plane as the already-spinning galaxy.

Answer 5

Stars and gas clouds orbit about the center of their galaxy. Astronomers believe that most galaxies spin around a black hole, a dense object with such a large gravitational pull that nothing nearby can escape, not even light. Using the HST (Hubble Space Telescope), astronomers found the first evidence for a black hole in the center of a galaxy. In 1998 researchers found strong evidence that the Milky Way galaxy’s center, which is 28,000 light-years away from Earth, contains a black hole more than two million times the mass of the Sun. In 1999 a group of astronomers showed that the two bright spots at the center of the Andromeda galaxy were caused by stars speeding around a black hole, the real center of the galaxy.

Answer 6

All galaxise spin.  This is simply due to the conservation of momentum.  Initially all of the particles were whipping around the galaxy like crazy due to high temperature.  When things cooled, gravity starts to attract this particles together to form stars and galaxies.  However, as they come together, their initial linear momentum gets translated into rotation momentum.  Everything started to spin begore there were stas and way before there were massive black holes