Astronomy and Astrophysics – Astrophysics
Scientific paper
2004-04-19
Astronomy and Astrophysics
Astrophysics
2 pages, 1 figure, LATEX, iaus.cls macro. To appear in the Proceedings of the IAU Symposium 222 "The Interplay among Black Hol
Scientific paper
10.1017/S1743921304002091
The properties of stellar populations in the centers of 54 nearby lenticular galaxies are investigated by means of 2D spectroscopy, with the Multi-Pupil Spectrograph of the 6m telescope of SAO RAS; the unresolved nuclei and their surrounding bulges are analysed separately. All the galaxies are divided into four subgroups depending on the environments type. Clear distinctions between the mean stellar ages and abundance ratios of the nuclei and of the bulges, both, are found for the S0s in clusters and group centers, on the one hand, and in field, on the other hand.
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