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Re: The Other Side of a Black Hole

Cross-posted to 4 groups.

Followups directed to: sci.physics.relativity

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Tom Roberts amok-crossposted across 4 newsgroups without F’up2:

> […] some types of black holes have "another side", and some do not.

See also <http://jila.colorado.edu/~ajsh/insidebh/> p.
 
> The black hole formed by a collapsing star has no "other side".
> 
> The Schwarzschild manifold does have "another side", but it is not
> possible for a timelike or null object to cross from one to the other.

If that is so, why do you think that a black hole (BH) formed by a 
collapsing star cannot possibly be described by the Schwarzschild metric 
(non-rotating, uncharged BH)?
 
> The Kerr manifold has an infinite number of "other sides", and with care a
> timelike or null object can transition in one direction from one to the
> other. But there is no going back.

If that is so, why do you think that a BH formed by a collapsing star cannot 
possibly be described by the Kerr (rotating, uncharged BH) or Kerr–Newman 
metric (rotating, charged BH)?

F’up2 <news:sci.physics.relativity>

-- 
PointedEars

Twitter: @PointedEars2
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Thread

The Other Side of a Black Hole The Starmaker <starmaker@ix.netcom.com> - 2017-08-19 10:55 -0700
  Re: The Other Side of a Black Hole Thomas Heger <ttt_heg@web.de> - 2017-08-19 20:23 +0200
    Re: The Other Side of a Black Hole The Starmaker <starmaker@ix.netcom.com> - 2017-08-19 11:50 -0700
      Re: The Other Side of a Black Hole Thomas Heger <ttt_heg@web.de> - 2017-08-20 13:16 +0200
        Re: The Other Side of a Black Hole The Starmaker <starmaker@ix.netcom.com> - 2017-08-23 09:08 -0700
          Re: The Other Side of a Black Hole Thomas Heger <ttt_heg@web.de> - 2017-08-26 09:45 +0200
    Re: The Other Side of a Black Hole Tom Roberts <tjroberts137@sbcglobal.net> - 2017-08-19 22:09 -0500
      Re: The Other Side of a Black Hole Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-08-20 12:00 +0200
      Re: The Other Side of a Black Hole The Starmaker <starmaker@ix.netcom.com> - 2017-08-21 11:32 -0700
        Re: The Other Side of a Black Hole The Starmaker <starmaker@ix.netcom.com> - 2017-08-22 00:17 -0700
          Re: The Other Side of a Black Hole The Starmaker <starmaker@ix.netcom.com> - 2017-08-22 20:33 -0700
            Re: The Other Side of a Black Hole The Starmaker <starmaker@ix.netcom.com> - 2017-08-23 09:21 -0700
              Re: The Other Side of a Black Hole john <johnsefton288@gmail.com> - 2017-08-24 09:15 -0700
                Re: The Other Side of a Black Hole moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-08-24 17:12 +0000
  Re: The Other Side of a Black Hole "Bast" <fakename@nomail.invalid> - 2017-08-20 09:20 -0400
    Re: The Other Side of a Black Hole john <johnsefton288@gmail.com> - 2017-08-20 07:03 -0700
      Re: The Other Side of a Black Hole john <johnsefton288@gmail.com> - 2017-08-20 07:19 -0700
    Re: The Other Side of a Black Hole The Starmaker <starmaker@ix.netcom.com> - 2017-08-21 11:34 -0700
      Re: The Other Side of a Black Hole Thomas Heger <ttt_heg@web.de> - 2017-08-22 19:40 +0200
  Re: The Other Side of a Black Hole Hägar <hsahm@yahoo.com> - 2017-08-24 16:16 -0700
  Re: The Other Side of a Black Hole "reber G=emc^2" <herbertglazier0@gmail.com> - 2017-08-27 16:43 -0700
    Re: The Other Side of a Black Hole "hanson" <hanson@quick.net> - 2017-08-27 19:08 -0700

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