Missing black holes found

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Everything I need to know I learned through Googling.

How come our black hole is so small (in relative terms). I heard the Sagittarius A in the center of our galaxy is only a few million solar masses. How do black holes get to be the size of billions of solar masses? Isn't the Milky Way a pretty big galaxy?

Isn't the size of the black hole related to the size of the bulge of galaxy? Milky Way doesn't have really big bulge, whereas giant ellipticals are virtually nothing but huge galactic bulges. As far as I know, those black holes weighting billions of suns are found only in such giant ellipticals, for example in M87.

^

That would make sense i think since there would be more stars for the black hole to pull to itself

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Fahad Sulehria,
Astronomical Artist,
Administrator of Nova Celestia.

This is sort of a "chicken or egg" question. Did large black holes act as seeds for large galaxies? Or did large galaxies create large central black holes? :-k

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Do you mean that black holes could have caused galaxies to form? i''m not too sure about that myself. The black holes do have strong gravitational pull, but i doubt it would range so far that it could pull gas to it several thousand light years away.

__________________
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Fahad Sulehria,
Astronomical Artist,
Administrator of Nova Celestia.

New Scientist article: Massive black holes common in early Universe

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Everything I need to know I learned through Googling.

about 3 x 10^6 Solar masses contained within 20 million Km or thats how it stood when i wrote a paper on it for the second year at uni LOL.
From everything i read the most logical thing i thought of was that if you have so much matter knocking around and these galaxies formed out of fluctuations in matter densities. then why couldnt these black holes form during the early stages of the universe, the matter inturn clumps around these holes and form galaxies?

Much like solar-system formation. That black holes 'suck stuff up' isn't entirely accurate either. An accretion disk vs. stellar disks vs. flattened spiral galaxy disks... Hmmmmm...
The first generation of stars would have been HUGE wouldn't they? With all that hydrogen and helium to draw on wouldn't stars start to form shortly after the 'end' of the dark age? Wouldn't they all form on these irregularities or fluctuations presented to us in the CMB? Wouldn't they have lived short lives, resulting in spectacular bursts of gamma rays and million or billion solar mass black holes? Wouldn't they have created enormous amounts of heavier elements?
Do I ask too many questions? Or what?
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Any supermassive stars would go superdupernova and compress the surrounding hydrogen to create a new batch of baby stars that would then begin to orbit the newly created supermassive black hole! Man I'm good!
[edit end]

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Science is a way of trying not to fool yourself. The first principle is that you must not fool yourself, and you are the easiest person to fool.

Religion is a culture of faith; science is a culture of doubt.