by Psnarf » Fri Aug 30, 2019 3:03 pm
If the particles in the accretion disk are "like a liquid swirling around a drain," does it not then follow that all of the stars in the galaxy behave in much the same way? That is, will the stars orbiting the central super-massive black hole eventually approach and fall into the hole? Is the rate at which the distance between a star and the galactic center decreases offset by expansion? Are the two forces, gravitational attraction of the black hole vs expansion of the universe, in balance? Will galaxies contract eventually collapsing into the hole or expand and fly apart?
Speaking of empty space expanding, does not the space-time inside a black hole horizon expand as well?
Obquote: "Holey Space-Time, Batman!" -Robin.
If the particles in the accretion disk are "like a liquid swirling around a drain," does it not then follow that all of the stars in the galaxy behave in much the same way? That is, will the stars orbiting the central super-massive black hole eventually approach and fall into the hole? Is the rate at which the distance between a star and the galactic center decreases offset by expansion? Are the two forces, gravitational attraction of the black hole vs expansion of the universe, in balance? Will galaxies contract eventually collapsing into the hole or expand and fly apart?
Speaking of empty space expanding, does not the space-time inside a black hole horizon expand as well?
Obquote: "Holey Space-Time, Batman!" -Robin.