Black Holes Much More Prevalent than Originally Thought
Astrophysicists at Penn State University have found that Super Massive Black Holes, like those found in the center of Galaxies, are more numerous than originally thought. Extrapolations from the 600 black holes recently found by the Chandra Space Observatory suggest that there are about 300 million Super Massive Black Holes in the whole sky detectable from Earth.
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I just wanna know- can they pull in dark matter too? Is there such a thing as a dark-matter black hole? Or is the recently calculated density of dark matter just too low?<br><br>Jess Tauber
Dark matter must be affected by gravity like other matter, otherwise it wouldn't be hanging out in localized areas (galaxies) just like other matter does.<br><br>I think everybody should keep in mind that dark matter hasn't really been detected, it's only theorized to explain an observed affect. Much like once Xrays seemed like a diffuse background radiation but are now understood to be emitted by these many active black holes (points), it is possible that the gravity signature we are seeing is not coming from a diffuse "dark matter" but could also come from many points, such as many inactive black holes that we can't detect.<br><br>So... what if there were a lot more black holes than we thought? That would be a lot of undetectable matter.<br><br>Duane
These X-Rays that are emitted from active Black Holes will red-shift just like any other electromagnetic radiation. So, how far away would an Active Black Hole have to be for the X-Rays to stretch so that we can see it in visible light?<br><br>Quasars are visible light (and sometimes radio). Could they just be active super massive black holes that are so far away that their radiation is shifted into the visible range? Could some of their black body curves be spread across the visible and radio range?<br><br>Instead of the explanation that only the "early" universe could form them, it would be easier to understand that active SM black holes appear in this manner due to their distance.<br><br>Duane
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