Testing the Cosmological Implications of the X-ray Substructure in Clusters of Galaxies

Mathematics – Logic

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

In an Omega =1 universe, the growth of structure continues indefinitely, building up larger and larger structures. If Omega_0 <1, the universe reaches a point where its expansion separates the growing structures too rapidly for them to continue to fall together. What structure has already formed evolves in isolation thereafter and eventually becomes smooth and dynamically relaxed. The hot gas in clusters offers a continuous tracer of the cluster potential and X-ray observations have revealed significant substructure in this gas. If this represents dynamical youth, it can be used to place a lower limit on Omega_0 . This argument is delightfully simple but needs to be quantified to be useful. We will report on simulations of clusters in various cosmologies performed with a hybrid N-body/hydro code to follow the coupled evolution of the gas and dark matter. This allows us to determine the lengthscale, amplitude, longevity, and frequency of the substructure in the gas and the dependence of these characteristics on the cosmological model.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Testing the Cosmological Implications of the X-ray Substructure in Clusters of Galaxies 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 Testing the Cosmological Implications of the X-ray Substructure in Clusters of Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Testing the Cosmological Implications of the X-ray Substructure in Clusters of Galaxies will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1254331

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.