Thread: Dark matter is:
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Old November 11th 17, 09:48 PM posted to sci.astro.research
Nicolaas Vroom
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Default Dark matter is:

On Tuesday, 7 November 2017 00:19:18 UTC+1, Phillip Helbig wrote:

You don't need a simulation. There is acceleration if

Omega/2 - lambda 0.


Which are the present values for Omega and Lambda?

When you visit
https://lambda.gsfc.nasa.gov/toolbox/tb_camb_form.cfm
they use Omega(b), Omega(c), Omega(nu) and Omega(k)
Lambda is not mentioned.
This makes it tricky to decide if the above formule
is a good yardstick.

Nicolaas Vroom

[[Mod. note -- Ned Wright's cosmology tutorial is excellent:
http://www.astro.ucla.edu/~wright/cosmolog.htm
-- jt]]