Fossil groups: end products of groups and clusters?

Details Fossil groups: end products of groups and clusters? Fossil groups: end products of groups and clusters?

Aug 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005noao.prop..208m&link_type=abstract

NOAO Proposal ID #2005B-0208

Computer Science

Scientific paper

The prime objective of this program is to test the interesting possibility that a fossil group is the end-product of the merging of dense groups/poor clusters and to check if they are old systems, as commonly thought. Fossil groups, sometimes called ``dark" groups, exhibit an extended X-ray halo, with Lx, total mass and gas mass similar to poor clusters, but optically they are dominated by a single luminous elliptical galaxy, surrounded by faint companions. Our plan is to obtain a homogeneous spectroscopic and imaging dataset for all fossil groups known to date, complementing the X-ray studies. We will test the proposed evolutionary history through the determination of the luminosity function, velocity dispersions, total masses and M/L for a sample of 25 fossil groups and the detailed study of their first-ranked galaxies. In addition, the dataset will provide the basis for studies of galaxy populations, including analysis of the role of merging in the evolution of group members, and determination of the relationship of these groups with more typical groups and clusters.

Affiliated with

Also associated with

No associations

Rating

Fossil groups: end products of groups and 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 Fossil groups: end products of groups and clusters?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fossil groups: end products of groups and clusters? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-796855