Massive Compact Groups at z˜0.2: Are They the Precursors of Today's Fossil Groups?

Details Massive Compact Groups at z˜0.2: Are They the Precursors of Today's Fossil Groups? Massive Compact Groups at z˜0.2: Are They the Precursors of Today's Fossil Groups?

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aspc..421..249c&link_type=abstract

Galaxies in Isolation: Exploring Nature Versus Nurture, proceedings of a conference held 12 to 15 May 2009 in Granada, Spain. Ed

Astronomy and Astrophysics

Astronomy

Scientific paper

We analyze the dynamical properties of two massive compact groups at z˜0.2 that have several properties in common with known fossil groups. The two systems have more than 20 members within a radius of 1 Mpc, velocity dispersions > 700 km s-1, and masses > 2×1014 Msun, similar to that of the most massive fossil groups known. The merging of the central galaxies in these groups would form a galaxy with magnitude Mr’˜-24, typical for first - ranked galaxies of fossil groups. Although nearby compact groups with similar properties of these groups are rare, we speculate that such systems occurred more frequently in the past and they may have been the precursors of fossil groups.

Affiliated with

Also associated with

No associations

Rating

Massive Compact Groups at z˜0.2: Are They the Precursors of Today's Fossil Groups? 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 Massive Compact Groups at z˜0.2: Are They the Precursors of Today's Fossil Groups?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Massive Compact Groups at z˜0.2: Are They the Precursors of Today's Fossil Groups? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1116580