Accelerating Model of the Universe

I have questions about models of the universe that represent the growth
of the size of the universe with time. I know that the open model has
a hyperbolic shape and its density is between 0 and 1. The flat model
has no curvature and its density is equal to 1. The closed model has a
spherical shape and its density is greater than 1. What I can't find is
the accelerating model. My books have no information at all. My
questions are : 1. What is the shape of the accelerating model? What
is the density of the accelerating model? Which of the four models has
a universe full of dark energy causing the rate of expansion to increase
with time? My guess is the flat or open model.

Thanks to Odysseus for helping me last time. I got a perfect score on
the homework and a perfect score on the test.

Thanks in advance

"azazel scratch" schreef in bericht
...
I have questions about models of the universe that represent the growth
of the size of the universe with time. I know that the open model has
a hyperbolic shape and its density is between 0 and 1. The flat model
has no curvature and its density is equal to 1. The closed model has a
spherical shape and its density is greater than 1. What I can't find is
the accelerating model. My books have no information at all. My
questions are : 1. What is the shape of the accelerating model? What
is the density of the accelerating model? Which of the four models has
a universe full of dark energy causing the rate of expansion to increase
with time? My guess is the flat or open model.

Thanks to Odysseus for helping me last time. I got a perfect score on
the homework and a perfect score on the test.

Thanks in advance

1: Good question. I don't really know the answer, but it's the mass that
makes the universe curl up .. or not. It's also the mass/density that makes
the universe expansion slow down. However there seems to be an other force
that overcompensates the slowing down of the expansion by mass, which makes
the expansion accelerate. So this force may change the density in a way the
shape will change over time as well. I think until we know the nature of
that force it's not easy to tell alot about the shape of the universe over
time.
I'd really like to know what some experts have to say about this.

2: So there are really three models. All with the possibility of an
increasing expansion over time. We dont know exactly what makes this
acceleration happen yet. Dark energy is called "dark" because of this reason
But indeed, if the expansion will keep accelerating, the universe will
probably end up really flat.

Floris Kuik

At the expanding horizon of the universe time must be getting slower and
slower in relation to our time. Time does indeed obey the inverse
square law. Bert

time must be getting slower and
slower in relation to our time. Time does indeed obey the inverse
square law.

You mean relative
Interference
Of Big Square
& Smaller Square?
Say, illustrated by Russian
Constructivist painter,
Malevich ~
Or my lovely postcard
painting,
Right here in my hand:
By Great Painter,
Stephen Cimini.
Smart stuff,
Primoridal color field,
Rich soup ~
Grown up ripe.

_______
Blog, or dog? Who knows. But if you see my lost pup, please ping me!
A
HREF="http://journals.aol.com/virginiaz/DreamingofLeonardo"http://journal
s.aol.com/virginiaz/DreamingofLeonardo/A