... The effect is strongest in the most evolved, high-latitude supergiant V5112 Sgr=IRAS19500-1709, which has an extended structured envelope (Figs.1 and 2). In the optical spectrum of this object, the BaII ion lines are split into three components (Figs.3 and 4). ... Thus, we discovered for the first time the enrichment of the stellar envelope with heavy metals produced at the AGB stage. ... Detection of heavy-metal lines in the spectrum of the circumstellar envelope of a post-AGB star. ...

Restored velocity field of NGC 157 in the reference frame rotating with the pattern speed overlaid on the H_alpha image of the galaxy. ... The line-of-sight velocity fields of gaseous clouds in galactic disks of NGC 157 were analyzed by the method of reconstruction of 3D vector velocity field --- three components of velocities. ... This figure is produced with the help of software VORTEX developed in the Institute of Astronomy of the Russian Academy of Sciences. ... Back to Project Vortex. ...