The Fundamental Plane of Galaxy Clusters

Details The Fundamental Plane of Galaxy Clusters The Fundamental Plane of Galaxy Clusters

1993-04-20

arxiv.org/abs/astro-ph/9304018v1

Mon.Not.Roy.Astron.Soc.263:L21-L26,1993

Astronomy and Astrophysics

Astrophysics

11pp., 4 figures (available on request), LaTeX, BAP-04-1993-015-OAB

Scientific paper

Velocity dispersion $\sigma$, radius $R$ and luminosity $L$ of elliptical galaxies are known to be related, leaving only two degrees of freedom and defining the so-called ``fundamental plane". In this {\em Letter} we present observational evidence that rich galaxy clusters exhibit a similar behaviour. Assuming a relation $L \propto R^{\alpha}\sigma^{2 \beta}$, the best-fit values of $\alpha$ and $\beta$ are very close to those defined by galaxies. The dispersion of this relation is lower than 10 percent, i.e. significantly smaller than the dispersion observed in the $L-\sigma$ and $L-R$ relations. We briefly suggest some possible implications on the spread of formation times of objects and on peculiar velocities of galaxy clusters.

Affiliated with

Also associated with

No associations

Rating

The Fundamental Plane of Galaxy Clusters 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 The Fundamental Plane of Galaxy Clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Fundamental Plane of Galaxy Clusters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-394683