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2006MNRAS.373.1125B - Mon. Not. R. Astron. Soc., 373, 1125-1140 (2006/December-2)
The Tully-Fisher relation for S0 galaxies.
BEDREGAL A.G., ARAGON-SALAMANCA A. and MERRIFIELD M.R.
Abstract (from CDS):
However, we also find a large scatter in the TFR. We show that most of this scatter is intrinsic, not due to the observational uncertainties. The presence of such a large scatter means that the population of S0 galaxies cannot have formed exclusively by the above simple fading mechanism after all transforming at a single epoch. To better understand the complexity of the transformation mechanism, we have searched for correlations between the offset from the TFR and other properties of the galaxies such as their structural properties, central velocity dispersions and ages (as estimated from line indices). For the Fornax cluster data, the offset from the TFR correlates with the estimated age of the stars in the individual galaxies, in the sense and of the magnitude expected if S0 galaxies had passively faded since being converted from spirals. This correlation implies that a significant part of the scatter in the TFR arises from the different times at which galaxies began their transformation.
Abstract Copyright: 2006 The Authors. Journal compilation © 2006 RAS
Journal keyword(s): galaxies: elliptical and lenticular, cD - galaxies: fundamental parameters
Simbad objects: 64
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