i watched a program on discovery and they explained that there is super blackholes at the centre of each galaxy,anyone seen this or heard of it? does that not mean all galaxys will be sucked in and crushed?
2007-04-12 05:03:46 · 16 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
Our galaxy has a black hole of several million solar masses, and so do the cores of many other spiral galaxies (perhaps all of them). Some elliptical galaxies may also contain black holes.
Quasars are likely powered by massive black holes, accompanied by bipolar jets of matter and radiation which stretch out hundreds of thousands of light years. So black holes do not necessarily absorb all the matter in the surrounding galaxy. And it would take tidal friction unimaginably vast stretches of time to absorb orbitting suns.
2007-04-12 05:12:35 · answer #1 · answered by Anonymous · 0⤊ 0⤋
i don't know whether that is true. I have also recently watched a similar programme, on discovery, that says in the centre of each there are just lots of larger stars, and 'stellar nursuries' - the birth place of stars. Though, if there are lots of larger stars, much more densly packed together than on the edges, it would make sense that at the end of their lives they would form a super black hole. Perhaps this is partly what keeps the galaxy up there? It needs some thing to go round, so why not a black hole, after all, a black hole normally has matter around it that is not sucked in, where other stuff is.
2007-04-12 20:43:57 · answer #2 · answered by Kit Fang 7 · 0⤊ 0⤋
Oh, I thought it was a chewy chocolate center.Oops, that's a Tootsie Pop. OK...a little humor can't hurt.
Yes I remember a Discovery program discussing the various theories Black Holes, galaxies and the formation o the universe.
If I recall correctly...it was discussed as a theory as the distance to and back to verify the existence of Black Holes in galaxies billions of light years from Earth makes absolute proof impossible at this time.
But yes, if the theory is correct it would be correct to assume that the black holes would consume and destroy every galaxy.
My question...what would fill the massive void and massive gravity center? Doesn't nature abhor a vacuum...exactly what would be left behind after the galaxy is destroyed?
2007-04-12 05:28:31 · answer #3 · answered by iraq51 7 · 0⤊ 0⤋
Yes - the current accepted theory is that there is a super-massive black hole at the centre of each galaxy. This does not necessarily mean that all the galaxys will be sucked in and crushed though, although these black holes do have a strong correlation with galactic "morphology". Follow the links below for more info.
2007-04-12 05:15:31 · answer #4 · answered by Spacephantom 7 · 0⤊ 0⤋
They are called supermassive black holes and no it does not mean we will be sucked in. Think of it like the sun. It's gravity is massive compared to the earth, but we aren't sucked into the sun. The black hole has an immense gravitational pull, but for the most part it just keeps the galaxy together. There are stars orbiting it that do come too close and get sucked in, but we are much too far for that to happen. They are not sure what will happen once the Andromeda Galaxy collides with our own. Perhaps the two super massive black holes in each will eat eachother and grow large enough to pull both galaxies in, but it's doubtful. Either way, none of this will happen for about 5 billion years so you have nothing to worry about. Our sun will destroy our planet long before we have to worry about black holes.
2007-04-12 05:12:02 · answer #5 · answered by dusmul78 4 · 0⤊ 0⤋
Yes, the center of the galaxy has a mega black hole. X-ray sattlites have been used to indirectly view ours, Sagiitarus A, and we beleive almost all galaxies have one. As for the second question, the galaxies wont all be sucked in and crushed. However, one of the most widely accepted "end of the universe" theories is that there is a major black hole in the center of the universe forming, and eventually, expansion of the universe will stop and everything will be sucked into that black hole in the event known as "the big crunch". However, that is a long time away.
2007-04-12 05:46:10 · answer #6 · answered by iam"A"godofsheep 5 · 0⤊ 1⤋
The mostly likely answer based on current knowledge is that black holes are at the centre of galaxys, to get sucked into a black hole you need to go past the event horizon so parts will be but the majority will never get sucked in and will continue to orbit
2007-04-13 07:34:39 · answer #7 · answered by nurgle69 7 · 0⤊ 0⤋
The galactic center must have some engine powering it.
The consensus is that it is a black hole that inhabits the galactic center.
A black hole is a theoretical entity and no proof has been tendered of their existence
A galaxy is the end stage of an evolving universe and a black hole would be useless in any phase of such a process.
the galactic center must be powered by some sort of neutron star activity.
It could explain much of what we observe about our and other galaxies.
2007-04-13 04:18:03 · answer #8 · answered by Billy Butthead 7 · 0⤊ 0⤋
A Huge Black Hole, The presence of very high velocities in the stars and gas near the center of the galaxy has suggested to astronomers for a long time that a massive black hole might be present, providing a strong enough gravitational pull to keep the stars and gas in orbit.
2007-04-12 05:15:04 · answer #9 · answered by eurohilli 1 · 0⤊ 0⤋
All evidence points to super massive black holes. We will not be sucked in and crushed. It's just a thing to orbit around.
2007-04-12 05:08:59 · answer #10 · answered by Gene 7 · 0⤊ 0⤋