The Evolution of Low-Redshift Galaxy Structures

Details The Evolution of Low-Redshift Galaxy Structures The Evolution of Low-Redshift Galaxy Structures

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009apj...696.1689b&link_type=abstract

The Astrophysical Journal, Volume 696, Issue 2, pp. 1689-1692 (2009).

Astronomy and Astrophysics

Astronomy

5

Galaxies: Clusters: General, Galaxies: Evolution, Large-Scale Structure Of Universe

Scientific paper

Ellipticities for 6188 low-redshift (z < 0.18) poor and rich galaxy structures have been examined along with their evolution using an optical observational base that is statistically complete. The shape of each structure projected on the celestial sphere was determined using the covariance ellipse method. Analysis of the data indicates that structure ellipticity changes with redshift, being smaller for nearby objects and greater for those located further away. Such a change is also described better by quadratic or exponential relations than by a simple linear scheme. It is concluded that between redshifts of z = 0.18 and z = 0 we observe the dynamical evolution of galaxy clusters. Such a change in ellipticity with redshift is expected in ΛCDM models.

Affiliated with

Also associated with

No associations

Rating

The Evolution of Low-Redshift Galaxy Structures 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 Evolution of Low-Redshift Galaxy Structures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Evolution of Low-Redshift Galaxy Structures will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1112091