most definately. And there is good reason for this too. Let me explain. When the luminosity of a galaxies core changes it stays consistent from one side to the other which can be hundreds to even thousands of light years across. The thing with this is if it wasn't a black hole at the center then it would be impossible for the entire galactic center to stay consistent like this unless there was a gynormous single body at the center. Light does not travel fast enough to cause the entire galactic center to light up instantaneously. But because it is a supermassive black hole and it spans a large part of the galaxies center then the accretion disk around the black hole can easily light up the center of the core instantaneously and consistently. Also, if the core of a galaxy was a huge star or even just a very dense region of stars it would be far brighter than it actually is. And even further, a large star at the center wouldn't have the required mass to influence the gravitational effects on the rest of the galaxy that a supermassive black hole could. Also, a galaxies core emits large amounts of x-rays and gamma rays that also points to a black hole. Hope this helps.
2007-09-09 11:10:45
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answer #1
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answered by justask23 5
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I believe super massive black holes must exist because there's no other explanation for things like stars zipping around something with millions of solar masses yet is invisible. The behavior of quasars varying their energy output is another reason. Whatever is inside them, it's very small and an energy source can't vary it's output in less time than it takes for light to cross it's bulk. A super massive black hole is the only way to cram millions or billions of Solar masses into a volume the size of a solar system without contravening every accepted theory of physics and the observations that support them. If evidence does come to light that at least some quasars and galactic nuclei have a supermassive object in their hearts that is not a black hole, a lot of theories would have to be scrapped or drastically modified.
2007-09-09 18:11:59
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answer #2
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answered by Anonymous
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I do agree that the evidence for the immense gravitation emanating from the centre of each galaxy being attributed to the presence of a supermassive black hole is overwhelming, however, the only thing we as scientists can know for sure, is that such a body must have an infinitesmally gargantuan quantity of mass, however the true identity of such a phenomenon in nature remains highly theoretical and ridden with uncertainty.
I believe such a phenomenon goes beyond anything ever documented and understood by mankind
2007-09-09 18:07:16
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answer #3
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answered by Mandél M 3
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Yes. It makes perfect sense that there would be a super massive black hole at the core of a galaxy. I never could make sense of the idea that all the stars in a galaxy somehow all orbit their common center of mass; with no large single mass at the core. I much prefer the idea that there is a large central mass for the rest of the galaxy to orbit around, much like the Sun is the large central mass that the rest of our solar system orbits around.
2007-09-09 18:02:27
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answer #4
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answered by campbelp2002 7
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Hello Panda:
I suipport the theory. It is the only theory I have seen that explains what happens when multiple - multiple stars home in on one another (at the center of this Galaxy) and somehow exist in spite of their basic nature to absorb and destroy one another...must be something in the very center that prevents that from happening...and has been doing that for eons and eons.
Kindest regards from another Space Observer,
Zah
2007-09-09 19:54:04
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answer #5
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answered by zahbudar 6
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I do not accept this theory, as it has nothing to support it aside from observation of other galaxies and mathematical formulas.
My personal theory is that the center of the galaxy is occupied by a giant sphere of chocolate, thousands of times more massive than the Sun. Billions of tons of gas and dust insulate this chocolate from the heat of neighboring stars, keeping it from melting. This is where the Milky Way gets its milkiness. I really like chocolate, so this must be the truth.
2007-09-09 18:06:39
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answer #6
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answered by stork5100 4
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I think the question you should ask is why shouldn't we accept the theory. If your friend think it is not true, the first thing I would do is to ask him to explain why. Science is open to criticism. If he has a new theory and has proof to back it up, his view will be accepted.
2007-09-09 18:43:29
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answer #7
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answered by zi_xin 5
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I believe it because they can prove it.
2007-09-09 18:01:54
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answer #8
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answered by snakekeeper27 4
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yes.
2007-09-09 17:57:56
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answer #9
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answered by Anonymous
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No I don't.
2007-09-10 01:00:27
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answer #10
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answered by Marla ™ 5
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