Abstract
We present results of our investigation of two multi-spin galaxies which were taken from the catalog of polar ring galaxies. All of them possess nucleus-like knots. An analysis of gas and stars kinematics and study of the stellar population were carried out for these objects. A complex structure and peculiar kinematics of both components were revealed. The observed distribution of the stellar age and metallicity in central parts of galaxies (radius is about 8″) and along directions through their knots helps us to understand the merging processes and make conclusion of the knots’ nature in these objects.
Highlights
Multi-spin galaxies were discovered in past century
In addition to the complex morphology and kinematics, two galaxies under study (IC 883 and UGC 1198 taken from the catalog of polar ring galaxies [1]) have nucleus-like knots with the unclear origin
The observations of galaxies IC 883 and UGC 1198 were performed at the prime focus of the 6-m telescope of Special Astrophysical Observatory of the Russian Academy of Sciences (SAO RAS) with the SCORPIO multi-mode focal reducer [2] (in the “direct images”, Fabry-Perot interferometer (FPI)
Summary
Multi-spin galaxies were discovered in past century. Since they are investigated using different telescopes and there were obtained many observational data in a wide spectral range from. Most of these objects have an obvious signature of the interaction such as close companion(s). In addition to the complex morphology and kinematics, two galaxies under study (IC 883 and UGC 1198 taken from the catalog of polar ring galaxies [1]) have nucleus-like knots with the unclear origin
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