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How long will the sun remain a white dwarf?
"Chris L Peterson" wrote in message ... On Wed, 18 Jul 2007 13:59:15 GMT, Passing through wrote: .... Or at least the lifetime before every particle is froced apart from al te particles? That won't happen. Gravity will still hold things together locally. I think he is thinking of .. http://en.wikipedia.org/wiki/Big_Rip George |
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How long will the sun remain a white dwarf?
On Wed, 18 Jul 2007 14:22:07 GMT, Chris L Peterson
wrote: On Wed, 18 Jul 2007 13:59:15 GMT, Passing through wrote: Hasn't the recent discovery that the Universe's expanse is accelerating put an upper limit on the lifetime of the Unverse? Just the opposite. If the observation is correct, it means the Universe will continue to expand forever. Or at least the lifetime before every particle is froced apart from al te particles? That won't happen. Gravity will still hold things together locally. All that will happen is that everything will drift towards absolute zero (but never quite get there). If baryon decay turns out to be real, the Universe might ultimately consist of nothing but exotic subatomic particles, but that question remains open. _______________________________________________ __ Chris L Peterson Cloudbait Observatory http://www.cloudbait.com Haven't you heard of the Big Rip Theory? It seems that several Cosmologists feel that this may be the fate of the Universe. One link is below. http://www.space.com/scienceastronom...ip_030306.html If this theory is true then it does put an upper limit on how long the Sun will remain in the white dwarf stage. I suspect that if this theory is true the Sun will have cooled so it no longer appears white. |
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How long will the sun remain a white dwarf?
On Sat, 21 Jul 2007 13:47:34 GMT, Chris L Peterson
wrote: On Sat, 21 Jul 2007 05:45:00 GMT, wrote: Haven't you heard of the Big Rip Theory? It seems that several Cosmologists feel that this may be the fate of the Universe. One link is below. That's extremely speculative at the moment. Mainstream thought has the Universe simply cooling forever. If this theory is true then it does put an upper limit on how long the Sun will remain in the white dwarf stage. I suspect that if this theory is true the Sun will have cooled so it no longer appears white. Depends on what you mean by white. In 20 billion or so years, the Sun will still be very hot and certainly glowing brightly. _______________________________________________ __ Chris L Peterson Cloudbait Observatory http://www.cloudbait.com It seems a logica consequence IF the expansion is accelrating. At somepoint it should overcome even gravity. Of course who is to say the accelration will continue forever. I am certain someone will come up with a new theory in other decade or so. By white i was referring to the color. I am sure it will still be bright, but I am thinking it may well be yellowish after 20 billion years. |
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