The structure of the stellar disks of southern S0 galaxies in sparse environmentsстатья
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Дата последнего поиска статьи во внешних источниках: 18 марта 2016 г.
Аннотация:Surface photometry data are presented for 12 southern lenticular galaxies located in regions of low density. Digital images in the gri bands were obtained on the LCOGT network of meter-class telescopes. Structural parameters of the global stellar disks of the galaxies are calculated, namely, the exponential scales and relative thicknesses. The presence of substructures in the disks is noted; in particular, more than the half of the studied galaxies possess ring structures, sometimes more than one. The color maps presented indicate complex evolution of the substructure of the disks of lenticular galaxies: they can be classified as blue (ongoing star formation) or red (concentration of dust). The rings do not always lie in the main plane of the disks; there are cases of clearly inclined, or even polar, compact rings.