SIMBAD references

2007A&A...474.1081G - Astronomy and Astrophysics, volume 474, 1081-1092 (2007/11-2)

Stellar population gradients in bulges along the Hubble sequence. I. The data.


Abstract (from CDS):

This is the first paper presenting our long-term project aimed at studying the nature of bulges through analyzing their stellar population gradients. We present deep spectroscopic observations along the minor axis and the data reduction for a sample of 32 bulges of edge-on spiral galaxies. We explain in detail our procedures for measuring their dynamical parameters (rotation curves and velocity dispersion profiles) and line-strength indices, including the conversion to the Lick/IDS system. Tables giving the values of the dynamical parameters and line-strength indices at each galactocentric radius are presented (in electronic form) for each galaxy of the sample. The derived line-strength gradients from this dataset will be analyzed in a forthcoming paper to set constraints on the different scenarios for the formation of the bulges.

Abstract Copyright:

Journal keyword(s): galaxies: bulges - galaxies: stellar content - methods: data analysis - galaxies: abundances - galaxies: evolution - galaxies: formation.

VizieR on-line data: <Available at CDS (J/A+A/474/1081): table1.dat data1.dat data2.dat>

Simbad objects: 32

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