The main galaxy groups from the SDSS data release 5

Details The main galaxy groups from the SDSS data release 5 The main galaxy groups from the SDSS data release 5

Nov 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007a%26a...474..783d&link_type=abstract

Astronomy and Astrophysics, Volume 474, Issue 3, November II 2007, pp.783-791

Astronomy and Astrophysics

Astrophysics

24

Galaxies: Fundamental Parameters, Cosmology:, Large-Scale Structure Of Universe

Scientific paper

Aims: We investigate the correlations between galaxy properties and environment. Methods: From the main galaxy sample of the SDSS Data Release 5, we have extracted 11 163 groups at the linking length R0 = 0.2 ×bar{n}-1/3 = 1.97 Mpc by the three-dimensional friends-of-friends (FOF) algorithm, where bar{n} is the mean galaxy density, and compare basic properties of member galaxies of main galaxy groups with those of the main galaxy sample and isolated galaxies in each redshift bin. Results: The luminosities and sizes of galaxies are almost independent of environment, but morphologies and colors are correlated with environment-especially galaxy morphologies.
Full Table 2 is only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/474/783

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