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Re: event horizon.

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Steven Carlip wrote:

> It's true that the "areal radial coordinate" at the horizon --
> the "radius" determined from the square root of the area -- is
> often called the "Schwarzschild radius."  But this is historical
> accident, coming from a time that the distinctions among different
> coordinates was not very well understood. 

Thank you for your explanation.  However:

> I think I can safely say that few, if any, experts on GR would actually
> say that the "Schwarzschild radius" was the radius of a black hole.

As one example of many that, AISB, can be found easily with a 
Google/whatever Web search keywords “black hole radius”:

Stephen W. Hawking, Malcolm J. Perry, Andrew Strominger (2016).  
Superrotation Charge and Supertranslation Hair on Black Holes.
<https://arxiv.org/abs/1611.09175>

| 2.3 Discussion
| 
| […]
| In this type of situation, however, peeling can typically be restored by
| adding incoming radiation in just such a finetuned way that the solution
| is exactly Schwarzschild outside some arbitrarily large but finite radius
| [105–107].  […]

I leave it to you to check the references.


PointedEars
-- 
«Nec fasces, nec opes, sola artis sceptra perennant.»
(“Neither high office nor power, only the scepters of science survive.”)

  —Tycho Brahe, astronomer (1546-1601), inscription at Hven

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event horizon. Simon Roberts <retenshun@gmail.com> - 2018-03-13 23:32 -0700
  Re:event horizon. Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-03-14 08:14 +0100
    Re: event horizon. mlwozniak@wp.pl - 2018-03-14 00:53 -0700
    Re:event horizon. Térov Balónky <iytn@yeicenlw.ik> - 2018-03-14 15:59 +0000
      Re:event horizon. "David (Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2018-03-14 09:19 -0700
    Re:event horizon. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-03-14 18:18 +0100
  Re: event horizon. Tom Roberts <tjroberts137@sbcglobal.net> - 2018-03-14 22:15 -0500
    Re: event horizon. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-03-15 16:29 +0100
      Re: event horizon. Gary Harnagel <hitlong@yahoo.com> - 2018-03-15 09:20 -0700
      Re: event horizon. Térov Balónky <iytn@yeicenlw.ik> - 2018-03-16 14:48 +0000
      Re: event horizon. Tom Roberts <tjroberts137@sbcglobal.net> - 2018-03-19 10:36 -0500
        Re: event horizon. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-03-20 00:56 +0100
          Re: event horizon. Tom Roberts <tjroberts137@sbcglobal.net> - 2018-03-20 14:13 -0500
            Re: event horizon. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-03-20 20:56 +0100
              Re: event horizon. Steven Carlip <carlip@physics.ucdavis.edu> - 2018-03-22 09:17 -0700
                Re: event horizon. Darryl Fletcher <lu@ewiwwe.tt> - 2018-03-22 16:37 +0000
                Re: event horizon. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-03-22 18:10 +0100
                Re: event horizon. JanPB <filmart@gmail.com> - 2018-03-23 13:13 -0700
                Re: event horizon. Prokaryotic Caspase Homolog <prokaryotic.caspase.homolog@gmail.com> - 2018-03-22 14:54 -0700
                Re: event horizon. Koobee Wublee <koobee.wublee@gmail.com> - 2018-03-22 23:06 -0700
            Re: event horizon. Koobee Wublee <koobee.wublee@gmail.com> - 2018-03-20 22:51 -0700
              Re: event horizon. Odd Bodkin <bodkinodd@gmail.com> - 2018-03-21 11:37 +0000
                Re: event horizon. Koobee Wublee <koobee.wublee@gmail.com> - 2018-03-22 13:51 -0700
              Re: event horizon. JanPB <filmart@gmail.com> - 2018-03-23 13:31 -0700
                Re: event horizon. Tom Roberts <tjroberts137@sbcglobal.net> - 2018-03-23 15:59 -0500
                Re: event horizon. Emma Blazer <aemb@wmopswxa.as> - 2018-03-23 22:19 +0000
                Re: event horizon. JanPB <filmart@gmail.com> - 2018-03-23 15:43 -0700
                Re: event horizon. Koobee Wublee <koobee.wublee@gmail.com> - 2018-03-23 22:06 -0700
                Re: event horizon. mlwozniak@wp.pl - 2018-03-23 23:05 -0700
                Re: event horizon. Emma Blazer <aemb@wmopswxa.as> - 2018-03-24 10:55 +0000
    Re: event horizon. JanPB <filmart@gmail.com> - 2018-03-19 20:42 -0700
      Re: event horizon. Tom Roberts <tjroberts137@sbcglobal.net> - 2018-03-23 10:37 -0500
    Re: event horizon. Koobee Wublee <koobee.wublee@gmail.com> - 2018-03-20 22:44 -0700
  Re: event horizon. numbernumber1964@gmail.com - 2018-03-20 13:55 -0700
    Re: event horizon. Odd Bodkin <bodkinodd@gmail.com> - 2018-03-20 23:02 +0000
  Re: event horizon. alsor@interia.pl - 2018-03-20 16:12 -0700
  Re: event horizon. numbernumber1964@gmail.com - 2018-03-22 15:24 -0700
    Re: event horizon. Prokaryotic Caspase Homolog <prokaryotic.caspase.homolog@gmail.com> - 2018-03-22 17:14 -0700
    Re: event horizon. pnalsing@gmail.com - 2018-03-22 17:32 -0700
  Re: event horizon. numbernumber1964@gmail.com - 2018-03-23 10:37 -0700
    Re: event horizon. Prokaryotic Caspase Homolog <prokaryotic.caspase.homolog@gmail.com> - 2018-03-23 13:32 -0700
  Re: event horizon. numbernumber1964@gmail.com - 2018-03-23 10:38 -0700
    Re: event horizon. moroney@world.std.spaamtrap.com (Michael Moroney) - 2018-03-24 01:36 +0000

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