Outer Rings in Early-type Galaxies: From Vorontsov-Velyaminov to Present

Open Astronomy

Silchenko O.¹  Ilyina M.¹  Katkov I.¹ 

[1] Sternberg Astronomical Institute, Lomonosov Moscow State University, University av. 13, Moscow 119991, Russian Federation;

关键词: galaxies: evolution;    galaxies: structure;    galaxies: kinematics and dynamics;    galaxies: elliptical and lenticular;   

DOI  :  10.1515/astro-2017-0192

来源: DOAJ

【 摘 要 】

‘Ringed galaxies’, or disk galaxies with prominent outer ring structures, separated visually from the main galactic bodies, were discovered and intensively studied by B. A. Vorontsov-Vel’yaminov whose 110th anniversary is celebrated this year. We discuss progress reached during recent years in understanding outer ring structures of disk galaxies, in particular, the results of our spectroscopic studies on the ring gas kinematics, excitation and chemical composition.

【 授权许可】

Unknown