The Zurich Environmental Study (ZENS) of Galaxies in Groups along the Cosmic Web. II. Galaxy Structural Measurements and the Concentration of Morphologically Classified Satellites in Diverse Environments

Autor: Cibinel, A., Carollo, C. M., Lilly, S. J., Miniati, F., Silverman, J. D., van Gorkom, J. H., Cameron, E., Finoguenov, A., Norberg, P., Peng, Y., Pipino, A., Rudick, C. S.
Rok vydání: 2012
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1088/0004-637X/776/2/72
Popis: We present structural measurements for the galaxies in the 0.0510^10 M_sun, the concentration of disk satellites increases with increasing stellar mass, separately within each morphological bin of B/T. The known increase in concentration with stellar mass for disk satellites is thus due, at least in part, to an increase in galaxy central stellar density at constant B/T. The correlation between concentration and galaxy stellar mass becomes progressively steeper for later morphological types. The concentration of disk satellites shows a barely significant dependence on delta_LSS or R/R_200. The strongest environmental effect is found with group mass for M>10^10 M_sun disk-dominated satellites, which are ~10% more concentrated in high mass groups than in lower mass groups.
Comment: 60 pages, 43 figures. Accepted by ApJS, Publication date September 20, 2013. Major change relative to submitted version: Entire ZENS sample reduced and analyzed, results based on entire sample, published ZENS catalog complete
Databáze: arXiv
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