WMAP Refines "Precision Cosmology"

WMAP Refines "Precision Cosmology"
http://www.skyandtelescope.com/commu.../84347742.html

Space, as far away as we can see, is flat to a new degree of precision.
The total density of normal matter, dark matter, and dark energy adds up
to 1.0023 ± 0.0055 of the critical flatness density. This is consistent
with a value of exactly 1 (flat space) to a precision of just half a
percent!

The breakdown of the basic components of the universe is now:

Ordinary matter, 4.56 ± 0.16 percent

Nonbaryonic dark matter, 22.7 ± 1.4 percent

Dark energy, 72.8 ± 0.5 percent.

The dark energy's "equation of state," a parameter known as w, is
–0.980 ± 0.053, consistent with a value of exactly –1 to a precision of
about 5%. This is the value that w would have if the dark energy is an
inherent, constant property of any given volume of space, regardless of
how much the space may have expanded in the past. This property matches
Albert Einstein's idea of a "cosmological constant," which he inserted
into his equations in 1917, and pretty much rules out the idea that the
dark energy is some kind of "quintessence" existing in space that thins
out as space expands.

For the first time, WMAP has extracted evidence from the microwave
background that directly reveals primordial helium emerging from the Big
Bang — not just hydrogen. This was totally expected, but it's nice to
see it confirmed. This is the first direct evidence of helium existing
before the first stars.

On Feb 19, 2:30 pm, Sam Wormley wrote:
WMAP Refines "Precision Cosmology"

snip

The breakdown of the basic components of the universe is now:

snip

Nonbaryonic dark matter, 22.7 ± 1.4 percent

snip


Do you realize that this fundamentally contradicts your next post?

On Feb 19, 10:47 pm, Sam Wormley wrote:
Pardon the Intrusion, But Your Data Show No Signs of Dark Matter

http://news.sciencemag.org/scienceno...e-intrusion-bu...

"Physicists may not know what dark matter is, but they're getting a
better idea of what it's not. Data from NASA's orbiting Fermi Gamma-ray
Space Telescope puts a crimp in particle theorists' favored explanation
of the mysterious stuff whose gravity holds the galaxies together,
ruling out a hefty range of masses for the hypothesized particles, a
team announced this week. Curiously, the result comes not from the Fermi
team itself, but from other particle astrophysicists who analyzed the
Fermi data".

In other words; one, the other, or both are just plain wrong.


D.Y. Kadoshima