Evolution of galaxy clusters in $Λ$MDM cosmologies

Details Evolution of galaxy clusters in $Λ$MDM cosmologies Evolution of galaxy clusters in $Λ$MDM cosmologies

2001-06-29

arxiv.org/abs/astro-ph/0106559v1

Astronomy and Astrophysics

Astrophysics

9 pages, 12 figures included; to be published in Proceedings of XXXVIth Rencontres de Moriond "Galaxy clusters and the high-re

Scientific paper

The time evolution of galaxy cluster abundance is used to constrain cosmological parameters in dark matter models containing a fraction of hot particles (massive neutrino). We test the modified MDM models with cosmic gravitational waves which are in agreement with observational data at $z=0$, and show that they do not pass the cluster evolution test and therefore should be ruled out. The models with a non-zero cosmological constant are in better agreement with the evolution test. We estimate $\Omega_\Lambda$ and find that it is strongly affected by a small fraction of hot dark matter: $0.4 <\Omega_\Lambda <0.8$ for $\Omega_H /\Omega_M <0.2$.

Affiliated with

Also associated with

No associations

Rating

Evolution of galaxy clusters in $Λ$MDM cosmologies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Evolution of galaxy clusters in $Λ$MDM cosmologies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evolution of galaxy clusters in $Λ$MDM cosmologies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-330954