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Planets pulled in by neutron stars gravity



 
 
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  #1  
Old November 7th 03, 11:18 PM
|-|erc
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Default Planets pulled in by neutron stars gravity

If planets kept colliding into a heavier neutron star would it
have to further collapse into a black hole? Theoretically and
practically?

Herc



  #2  
Old November 8th 03, 04:15 AM
Info Plumber
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I am goimg to take a wild stab at this, but would appreciate some input from
someone who really knows this stuff.

I don't think there could be enough planets in any typical solar system or
even golobular star cluster system to provide enough mass to convert a
neutron star into a black hole. I would think it would just make a slightly
bigger neutron star.

I am under the impression that black holes are formed by the catostrophic
explosion and subsequent collapse of massive stars many times the mass of
our own sun.

Terry

"|-|erc" wrote in message
...
If planets kept colliding into a heavier neutron star would it
have to further collapse into a black hole? Theoretically and
practically?

Herc





  #3  
Old November 8th 03, 03:25 PM
username
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"|-|erc" wrote in message
...
If planets kept colliding into a heavier neutron star would it
have to further collapse into a black hole? Theoretically and
practically?


theoretically: yes.
practically: space is not that densely populated with mass, so I think this
hardly ever happens


  #4  
Old November 8th 03, 03:28 PM
Bill Nunnelee
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If the additional material pushed the neutron star over about 3 solar
masses, it should.

http://astro.nmsu.edu/~nicole/teachi...e24/slide02.ht
ml






"|-|erc" wrote in message
...
If planets kept colliding into a heavier neutron star would it
have to further collapse into a black hole? Theoretically and
practically?

Herc





  #5  
Old November 8th 03, 11:08 PM
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On Sat, 8 Nov 2003 16:25:23 +0100, "username" e-mail@adress wrote:

theoretically: yes.
practically: space is not that densely populated with mass, so I think this
hardly ever happens


How about if we say that matter is seldom that dense.
  #6  
Old November 9th 03, 01:38 AM
onegod
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Well... why does it have to be planets? And chances are neutron star loses
so much mass that things cant crash in to it fast enough and even if it
does, majority of such mass will be exploded away.


"|-|erc" wrote in message
...
If planets kept colliding into a heavier neutron star would it
have to further collapse into a black hole? Theoretically and
practically?

Herc





  #7  
Old November 9th 03, 01:47 PM
G=EMC^2 Glazier
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Hi Herc A blackhole has 3 times more density than a neutron star. If a
planet hit a neutron star that planet would be blown apart,and most of
it radiated out into space. Interesting a neutron star was found to
have a solar system. It has two rock planets that are about 3 times
the size of the Earth. They could have water,and being so big lots of
internal heat to create life forms. Bert

  #8  
Old November 9th 03, 10:47 PM
|-|erc
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"G=EMC^2 Glazier" wrote
Hi Herc A blackhole has 3 times more density than a neutron star. If a
planet hit a neutron star that planet would be blown apart,and most of
it radiated out into space. Interesting a neutron star was found to
have a solar system. It has two rock planets that are about 3 times
the size of the Earth. They could have water,and being so big lots of
internal heat to create life forms. Bert


Ok, so even if a mass is just under smallest black hole mass, it is much lower in
density, hence the gravity is not as strong to absorb the planet.

What about 2 neutron stars colliding? Be a nice weapon if you could direct them

Herc



  #9  
Old November 10th 03, 02:38 AM
Benoit Morrissette
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On Mon, 10 Nov 2003 08:47:46 +1000, "|-|erc" wrote:

"G=EMC^2 Glazier" wrote
Hi Herc A blackhole has 3 times more density than a neutron star. If a
planet hit a neutron star that planet would be blown apart,and most of
it radiated out into space. Interesting a neutron star was found to
have a solar system. It has two rock planets that are about 3 times
the size of the Earth. They could have water,and being so big lots of
internal heat to create life forms. Bert

Humm.... a neutron star radiates a LOT of radiation. A planet is too close for
MY comfort...


Ok, so even if a mass is just under smallest black hole mass, it is much lower in
density, hence the gravity is not as strong to absorb the planet.

What about 2 neutron stars colliding? Be a nice weapon if you could direct them


Some suppose it is the source of thoses mysterious gamma ray bursts.

Herc



Good night!

Benoît Morrissette
 




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