Mass Profile of the Infall Region of the Abell 2199 Supercluster

Details Mass Profile of the Infall Region of the Abell 2199 Supercluster Mass Profile of the Infall Region of the Abell 2199 Supercluster

2002-06-13

arxiv.org/abs/astro-ph/0206226v1

Astron.J. 124 (2002) 1266

Astronomy and Astrophysics

Astrophysics

49 pages, 20 figures, to appear in The Astronomical Journal, version containing high-resolution figures available at http://

Scientific paper

10.1086/342344

Using a redshift survey of 1323 galaxies (1092 new or remeasured) in a region of 95 square degrees centered on the nearby galaxy cluster Abell 2199, we analyze the supercluster containing A2199, A2197, and an X-ray group. The caustic technique accurately reproduces the true mass profiles of simulated simple superclusters (i.e., superclusters where the virial mass of one cluster is 2-10 times the virial mass of all other clusters in the supercluster). We calculate the masses of the two main components of A2197 (A2197W and A2197E) using archival X-ray observations and demonstrate that the A2199 supercluster is simple and thus that the caustic technique should yield an accurate mass profile. The mass profile is uncertain by ~30% within 3 Mpc/h and by a factor of two within 8 Mpc/h and is one of only a few for a supercluster on such large scales. Independent X-ray mass estimates agree with our results at all radii where they overlap. The mass profile strongly disagrees with an isothermal sphere profile but agrees with profiles suggested by simulations. We discuss the interplay of the supercluster dynamics and the dynamics of the bound subclusters. The agreement between the infall mass profile and other techniques shows that the caustic technique is surprisingly robust for simple superclusters (abridged).

Affiliated with

Also associated with

No associations

Rating

Mass Profile of the Infall Region of the Abell 2199 Supercluster 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 Mass Profile of the Infall Region of the Abell 2199 Supercluster, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mass Profile of the Infall Region of the Abell 2199 Supercluster will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-98574