Ten years of nearby galaxies investigation with the Multi - Pupil Spectrograph of the 6 m telescope Sil ’ chenko Olga
نویسنده
چکیده
We describe the history and results of our study of early-type disk galaxies with the Multi-Pupil Spectrograph of the 6m telescope (MPFS). With the new data we confirm the discovery of chemically distinct nuclei reported in 1992; now such nuclei are found in two dozens galaxies. The structure of chemically distinct features formed probably in secondary nuclear star-formation bursts seems to be complex and closely related to an appearance of separate circumnuclear disks. As by-product, we have also found inner polar gaseous disks in 4 non-interacting, regular spiral galaxies; this phenomenon may be related to triaxiality. Some preliminary statistical conclusions on the stellar population properties in the nuclei and in the bulges of S0 galaxies are given.
منابع مشابه
ar X iv : a st ro - p h / 06 01 58 9 v 1 2 6 Ja n 20 06 Internal Kinematics of Galaxies : 3 D Spectroscopy on Russian 6 m Telescope
We have considered some results concerning gas and stars kinematics of nearby galaxies recently obtained on the SAO RAS 6m telescope using the panoramic spectroscopy methods. The circumnuclear regions of the galaxies were observed with integral-field spectrograph MPFS. The large-scale ionized gas kinematics was studied with the scanning Fabry-Perot interferometer (FPI) in the multi-mode focal r...
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