A spectroscopic view of stellar populations in bulges of low surface brightness galaxies .

Bibcode
2013MSAIS..25...29M
Morelli, L.; Corsini, E. M.; Pizzella, A.; Dalla Bontà, E. M.; Coccato, L.; Méndez-Abreu, J.; Cesetti, M.
Bibliographical reference

Memorie della Societa Astronomica Italiana Supplement, v.25, p.29 (2013)

Advertised on:
0
2013
Number of authors
7
IAC number of authors
1
Citations
1
Refereed citations
1
Description
We present the radial profiles of the age, metallicity and alpha /Fe enhancement of the stellar populations in the bulge-dominated region for a sample of eight spiral galaxies with a low surface-brightness stellar disc and a bulge. Almost all the sample bulges are characterized by a young stellar population, a solar alpha /Fe enhancement, and a metallicity spanning from high to sub-solar values. No significant gradient in age and alpha /Fe enhancement is measured, whereas a negative metallicity gradient is found only in a few cases. The stellar populations of the bulges hosted by low-surface-brightness discs result to share many properties with those of high surface-brightness galaxies. Therefore, they are likely to have common formation scenarios and evolution histories.
Type
Non-refereed
Galaxies

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