TY  - GEN 
AU  - Pérez, Isabel
AU  - Sánchez-Blázquez, P.
PY  - 2011
SN  - 0004-6361
SN  - 1432-0746
UR  - http://hdl.handle.net/10481/28433
AB  - Aims. We wish to determine the influence of bars on the building of galaxy bulges through analysis of ages and metallicities derived from stellar absorption line-strength indices.
AB  - Methods. Long-slit spectroscopy was obtained for a sample of 20 early-type barred galaxies. Line-strength indices were measured and used to derive age and metallicity gradients in the bulge region by comparing them with stellar population models. The...
AB  - Results. The bulges of barred galaxies seem to be more metal rich, at a given velocity dispersion (σ), than the bulges of unbarred galaxies, as measured by a few metallicity sensitive indices. There are indications that the ratio of relative abundance...
AB  - Conclusions. Bulges of barred early type galaxies might have experienced a different chemical enrichment than do the bulges of unbarred galaxies of the same morphological type, the same central velocity dispersion, and low inclination angles. The...
LA  - eng
PB  - European Southern Observatory (ESO); Springer Verlag
KW  - Galaxies
KW  - Abundances
KW  - Bulges
KW  - Structure
KW  - Stellar content
KW  - Evolution
TI  - Study of stellar populations in the bulges of barred galaxies
DO  - 10.1051/0004-6361/201015002
ER  -