Is there a β-problem in clusters of galaxies?

Details Is there a β-problem in clusters of galaxies? Is there a β-problem in clusters of galaxies?

Aug 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...288..746g&link_type=abstract

Astronomy and Astrophysics 288, 746-750 (1994)

Astronomy and Astrophysics

Astrophysics

16

Galaxies: Clusters, Intergalactic Medium, Cosmology: Theory, X-Rays: Galaxies

Scientific paper

We analyze the β-problem in galaxy clusters, i.e. the fact that the parameter β_X_ characterizing the slope of the hot X-ray emitting intracluster gas is not equal to the temperature ratio of the galaxy to intracluster gases, in contradiction with their theoretically predicted equality. We show that this discrepancy was due to an oversimplification of the dynamical problem, in accordance with the status of our knowledge of galaxy clusters in the 1970's. With a less restrictive dynamical analysis, we show that it is not possible to derive a simple relation between these two quantities only. We generalize the formerly derived equality to a new identity involving two more variables. Since this new identity shows no contradiction with observations, we conclude that there is no longer a β-problem in galaxy clusters.

Affiliated with

Also associated with

No associations

Rating

Is there a β-problem 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 Is there a β-problem in clusters of galaxies?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Is there a β-problem in clusters of galaxies? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1492859