Isolated Galaxies in Observations and Simulations

Details Isolated Galaxies in Observations and Simulations Isolated Galaxies in Observations and Simulations

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aspc..421..278p&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

A comparison of observed and simulated isolated galaxies allows us to check their evolution in a wide range of redshifts and to reveal and evaluate a possible impact of their environment. Using the Minimal Spanning Tree (MST) technique we select samples of isolated galaxies, in the SDSS DR7 and in the moderate resolution dark matter simulation. We find that the separation to the nearest neighbour should be 4-5 h-1 Mpc to produce a sample of isolated objects with substantially peculiar environment.

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