Titlebook: Environment and the Formation of Galaxies: 30 years later; Proceedings of Sympo Ignacio Ferreras,Anna Pasquali Conference proceedings 2011

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https://doi.org/10.1007/978-3-662-46084-9alogues extracted from the Millennium simulation to study the potential systematics that might affect the overall distribution of the identified systems. We train on these mock catalogues the adopted group-finding technique (the Voronoi-Delaunay Method, VDM), to recover in an unbiased way the redshi

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https://doi.org/10.1007/978-3-662-64859-9ging systems (Casteels and Patton 2011). Using mock catalogues, the effect of imposing a fixed magnitude separation (.) between galaxy pairs (to isolate major mergers) is explored and we find that imposing a . introduces a selection bias which must be corrected for when comparing with field LFs. Our

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https://doi.org/10.1007/978-3-662-58697-6 the origin of this effect is not well known to date, and quantitative studies are rare. Here, we present the first statistical investigation of a sample of 76 H. discs using the WHISP survey. We perform a Fourier analysis to study the morphological lopsidedness. This allows to trace the degree of a

guzzle

https://doi.org/10.1007/978-3-642-73004-7 (ETGs) in the optical (griz) and Near-Infrared (YJHK) wavebands. The intercept “.” of the FP decreases from high- to low-density regions, implying that galaxies at low density have on average lower mass-to-light ratios than their high-density counterparts. Since the variation of “.” is the same at

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