Liz – that was my same reaction, truly massive things are astronomically 
observed to be out there (at the centers of big galaxies at least – don’t know 
if star clusters and satellite galaxies also have smaller analogues at their 
centers – or not?). The thrust of this paper – from what I gather is summed up 
in Mersini-Houghton – the author – own words:

·         that as a star collapses under its own gravity, it produces Hawking 
radiation.

·         Mersini-Houghton claims to have shown that by giving off this 
radiation, the star also sheds mass. So much so that as it shrinks it no longer 
has the density to become a black hole.

 

In a nutshell she is proposing a hypothesis that theoretically black holes can 
never be formed. I find this very hard to believe, myself, based on all the 
known astronomical evidence that in fact they must exist. Was wondering if 
anyone had ever heard about her or this hypothesis. 

Researched her a bit – she seems legitimate, a multiverse proponent in terms of 
her cosmological orientation; she has for example proposed that a possible 
phenomenon called dark flow, which is the apparent directional movement of our 
universe -- being swept along in the direction of constellations Centaurus and 
Hydra at a rate of around 500 km/s, could be evidence of the gravitational 
influence of another universe in the multiverse. Dark Flow is controversial, 
and in 2013, data from the Planck spacecraft is said to have shown no evidence 
of "dark flow”; however, another analysis by a member of the Planck 
collaboration, Fernando Atrio-Barandela, suggested the data were consistent 
with the earlier findings from WMAP… so maybe still up in the air.)

Mersini-Houghton is controversial, I gather… and the notion that theoretically 
black holes cannot form, because they burn out their mass as Hawkins radiation, 
certainly flies in the face of what we see in the sky. But, on the other hand, 
it is a pretty daring thing to try to say, and she is not some self-published 
legend-in-their-mind fringe loon either, she is an Associate professor at 
Chappel Hill, NC (if I recall). She certainly knows what she was getting into 
when she published it… so why? 

Is it hunger for another fifteen minutes of fame? Or is she herself convinced 
that her hypothesis is correct? I get the sense she feels her arguments and the 
math behind them are sound, but I have not read the actual paper either, which 
is why I asked if anyone had.

 

 

From: [email protected] 
[mailto:[email protected]] On Behalf Of LizR
Sent: Thursday, September 25, 2014 3:50 AM
To: [email protected]
Subject: Re: Do they or don't they exist? Is anyone familiar with this paper?

 

There are objects that are way too massive to be anything but black holes (if 
our current understanding of general relativity is correct). I believe the core 
of M104 (the Sombrero galaxy) is about one billion solar masses, for example.

But to be fair, I'm not sure exactly what is being claimed in this paper.

 

On 25 September 2014 19:06, Russell Standish <[email protected]> wrote:

What about the poster child Cygnus X-1. I thought that was too dense
to be a neutron star.

Cheers

On Wed, Sep 24, 2014 at 06:24:02PM -0700, meekerdb wrote:
> I just looked at.  If black holes don't exist it's going to be a
> problem explaining what it is at the center of the Milky Way (and
> other galaxies) that has a four million solar masses.
>
> Brent
>
> On 9/24/2014 4:44 PM, 'Chris de Morsella' via Everything List wrote:
> >
> >Read more at: Researcher shows that black holes do not exist
> ><http://phys.org/news/2014-09-black-holes.html#jCp>
> >
> >image <http://phys.org/news/2014-09-black-holes.html#jCp>
> >
> >
> >
> >
> >
> >Researcher shows that black holes do not exist
> ><http://phys.org/news/2014-09-black-holes.html#jCp>
> >Black holes have long captured the public imagination and been the
> >subject of popular culture, from Star Trek to Hollywood. They are
> >the ultimate unknown – the blac...
> >
> >View on phys.org <http://phys.org/news/2014-09-black-holes.html#jCp>
> >
> >Preview by Yahoo
> >
> >
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