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Jun 11, 2015 at 17:16 history edited Timaeus CC BY-SA 3.0
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Jun 11, 2015 at 17:14 comment added Timaeus If you were that close spatially and temporarily you were basically already interacting with the star as it fell through, sorta like you started an interaction with it that just hadn't finished yet as it crossed, its kinda cheating. And as you said you'd already be able to figure that out by looking at the highest speed things in emitted as it fell through. Also since there is some asymmetry between matter and antimatter you might even be able to analyze the light it emitted as it fell though. But that will be red shifted tremendously, so it's a bit like frozen star or red star analysis.
Jun 11, 2015 at 16:53 comment added dualredlaugh But as far as measurements taken by outside observers, it sounds like from what I've read, that the only measurements which could distinguish collapsing matter vs antimatter stars would be detection of neutrinos vs antineutrinos before disappearance across event horizon. Not long after fter the star crosses the event horizon, differences in the polarization of the quantum vacuum are potentially detectable then? I wonder if these measurements would need to be made close to the event horizon.
Jun 11, 2015 at 16:42 comment added dualredlaugh Very interesting. Never thought about the actual process of collapse within the event horizon.
Jun 10, 2015 at 21:11 history answered Timaeus CC BY-SA 3.0