Timeline for Does GR put a theoretical lower limit on the radius of a black hole event horizon?
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| Jun 8, 2015 at 19:01 | vote | accept | CommunityBot | moved from User.Id=81619 by developer User.Id=2911 | |
| Jun 5, 2015 at 19:59 | comment | added | CuriousOne | Yeah... it's bootstraps and giant foam hands waving... that kind of thing. I was thinking about this kind of prediction for the optical (and it seems to extend into the x-ray/gamma region): arXiv:gr-qc/0102093 or mnras.oxfordjournals.org/content/376/4/1857.full... don't worry, I am not taking these too seriously, either. | |
| Jun 5, 2015 at 19:30 | history | edited | user81619 | CC BY-SA 3.0 |
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| Jun 5, 2015 at 19:21 | comment | added | CuriousOne | @KyleKanos: Thanks for the link. I know about them, but I thought they were still a little short (maybe by a factor of two or three) although they are imaging at the scale of the object now. The reconstructed images in arXiv:1404.7095 could make one believe that what we are seeing there is the black hole... but one has to be careful, at least I believe they are using models in the reconstruction (they say for total flux only?), so it's not totally unbiased data in my opinion. I admit that I don't quite understand how they are reconstructing, so I might be wrong. | |
| Jun 5, 2015 at 19:03 | history | edited | user81619 | CC BY-SA 3.0 |
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| Jun 5, 2015 at 18:50 | comment | added | Kyle Kanos | @CuriousOne: With respect to "BH event horizon data in your lifetime," you may be interested in the Event Horizon telescope (and their publications) which was designed to observe the scale of Sgr A*'s event horizon. | |
| Jun 5, 2015 at 18:50 | answer | added | Mike | timeline score: 4 | |
| Jun 5, 2015 at 18:27 | comment | added | CuriousOne | No offense taken, personally I am happy with long distance recon with telescopes of whatever sort gets the job done and I hope that the first black hole event horizon data will be produced within my lifetime (I might be too senile to understand it, though). Of course, if all we were to learn is that GR holds tight, then we wouldn't have learned anything new in like 120 years, or so... I hope that's not how it will turn out. As for Planck scale effects, there is a bunch of folks who advertise the idea that quantum gravity should lead to x-ray birefringence... so that might be a discovery path. | |
| Jun 5, 2015 at 18:20 | comment | added | CuriousOne | There is no data for GR event horizons, either, so it's pretty much all speculation. Can I offer you a turtle on the way down until we have a way of imaging the first dozen black holes, or so? Alternatively, you could petition your congressman for funding for something like this: bhi.gsfc.nasa.gov | |
| Jun 5, 2015 at 18:18 | history | asked | user81619 | CC BY-SA 3.0 |