Neutrino Mass or No Mass That is the Question???

Seem to be thinking of mass density today. The sun to be a white
dwarf star its mass would be the size of the Earth. It could never be a
neutron star,for it needs more mass to begin with. Seems someday say in
5 billion years our galaxy will be 90% white dwarfs. It will still be an
organic galaxy. It is just another phase of gravity evolving all the
sub-micro particles to be compressed. Does this compression
proportionally match space expansion? Bert

On Wed, 18 Feb 2004 16:07:46 -0500 (EST), (G=EMC^2
Glazier) wrote:

Seem to be thinking of mass density today. The sun to be a white
dwarf star its mass would be the size of the Earth. It could never be a
neutron star,for it needs more mass to begin with. Seems someday say in
5 billion years our galaxy will be 90% white dwarfs. It will still be an
organic galaxy. It is just another phase of gravity evolving all the
sub-micro particles to be compressed. Does this compression
proportionally match space expansion? Bert
Hi Bert!

Hummmm, the galaxy is already 80% red dwarfs, stars like our Sun and bigger are
exceptions; theses red stars consumes their hydrogen fuel at a very slow rate,
they will still be almost unchanged 100 billions years from now... They are not
massive enough to start helium fusion at the end of their life so they will just
shut down, much less compressed than a white dwarf...

So no, compression does not match space expansion...

It is believed that in 10E100 years from now, all objects including black holes
will have "evaporated" into free protons, neutrons and electrons in a universe
so vast that the orbit of the electron of a hydrogen atom will be wider than the
actual diameter of our universe...

We can hardly call that "compressed matter".


Good night!

Benoît Morrissette