The relative distribution of dark matter and baryons in galaxy clusters

Details The relative distribution of dark matter and baryons in galaxy clusters The relative distribution of dark matter and baryons in galaxy clusters

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004bdmh.confe..88b&link_type=abstract

"Proceedings of "Baryons in Dark Matter Halos". Novigrad, Croatia, 5-9 Oct 2004. Editors: R. Dettmar, U. Klein, P. Salucci. Publ

Computer Science

Scientific paper

Based on a data-set of about 3000 galaxies in 59 nearby clusters, and X-ray data for a subset of these clusters, we derive the average cluster baryonic mass profile, and the profile of the mass associated to cluster galaxies. We consider separately the contributions from cluster galaxies and the intra-cluster gas. We subtract the baryonic mass profile from the total mass profile, yielding the average cluster dark mass profile. We find that this profile is not very well fitted by the Navarro, Frenk, & White profile, and a cored density profile provides a better fit. The baryon-to- dark mass profile is nearly constant, but shows an excess of baryons near the centre (due to the brightest cluster galaxies) and at large radii (due to the intra-cluster gas). A mass budget of the relative contribution of the different baryonic components and the dark matter is provided.

Affiliated with

Also associated with

No associations

Rating

The relative distribution of dark matter and baryons in 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 relative distribution of dark matter and baryons in galaxy clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The relative distribution of dark matter and baryons in galaxy clusters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1024095