AGM Home	Behaviour	Evidence	Simulations	Investigation	Objections	Problems
				Analysis of the Coma Cluster

Summary

The Coma Cluster is a large local galaxy cluster. For this analysis published data relating to the apparent amount of dark matter in the Coma Cluster was collected. This was interpreted using the AGM Theory to calculate the density profile of anti-gravity matter around and within the cluster. The resulting profile is consistent with the concept of a weak anti-gravity matter vortex.

Analysis

The graph to the right is Figure 8 (upper panel) of source. In this graph M is the mass within a sphere of radius r (unlike for the Analysis of Abell 1689 in which a similar looking graph shows projected mass). Note that at low radius the apparent mass of dark matter is approaching being proportional to radius cubed. That implies that at low radius the apparent density of dark matter does not vary much with radius.

Data was scaled off the line on this graph for dark matter at the points marked with a circle. From this were calculated the apparent average density of dark matter within a sphere defined by the first radius data point and within a series of concentric shells between the other radius data points.

The apparent density of dark matter is plotted against radius on the right. The radius values are as for the data points in the graph above.

However according to the AGM Theory there is no dark matter. The gravitational lensing is caused by an absence of anti-gravity matter rather than by a presence of dark matter.

That is, there is a background density of anti-gravity matter throughout the universe. The galaxies in the Coma Cluster are orbiting each other and as they do so they drive an anti-gravity matter vortex (or many vortices). The anti-gravity matter vortex throws anti-gravity matter outwards and causes a reduction in the density of anti-gravity matter within the cluster. This generates a gravitational attraction to the centre of the cluster for normal matter objects, anti-gravity matter particles and light.

The graph on the right shows the variation in density of anti-gravity matter with radius. This has been created by inverting, factoring and transposing the curve above.

Conclusion

The shape of the anti-gravity matter density profile, particularly the flattening at low radius is consistent with an anti-gravity matter vortex. The Coma Cluster vortex is rather weak compared to that of Abell 1689.

© Copyright Tim E Simmons 2010 to 2015. Last updated 21^st May 2015. Major changes are logged in AGM Change Log.