Age and metallicity of the bulges in lenticular galaxies

Panoramic spectroscopic data of the sample of 80 nearby lenticular galaxies obtained with the Multi-Pupil Fiber Spectrograph of the 6-m telescope are presented. The SSP-equivalent ages, [Z/H], and [Mg/Fe] are determined through the Lick indices H-beta, Mgb, and separately for the nuclei and for the bulges. About a half of the sample contain chemically distinct nuclei, more metal-rich and younger than the bulges. The correlations of the stellar population properties for the nearby S0s are discussed.Comment: 5 pages, 2 figures. To appear in the Proceedings of the IAU Symposium 245, "Formation and Evolution of Galaxy Bulges", held at Oxford, U.K., July 2007, Eds. M. Bureau, E. Athanassoula, B. Barbu

Observations of lenticular galaxies at the 6m telescope of the Special Astrophysical Observatory

This is a historical review covering the last 30 years of the observational study of lenticular galaxies at the 6m telescope BTA of the Special Astrophysical Observatory of the Russian Academy of Sciences. The development of spectroscopic techniques at the BTA has allowed to get comprehensive information about this class of stellar systems, starting from the study of their nuclei in the late 80th towards quite exclusive results obtained in the last years on the outermost parts of their large-scale stellar disks.Comment: 9 pages, to be published in "Ground-Based Astronomy in Russia. 21st Century." Proceedings of all-Russian conference, September 21-25, 2020 Nizhny Arkhyz, at the Special Astrophysical Observatory of RAS. Eds: I.I. Romanyuk, I.A. Yakunin, A.F. Valeev, D.J. Kudryavtse