Spectroscopy of selected areas of the two Giant H II Regions (GHR) NGC 5471 and NGC 604 shows convincing evidence for the existence of ionized gas at high...

We study the evolution of super star cluster winds driven by stellar winds and supernova explosions. Time-dependent rates at which mass and energy are deposited...

Massive stars have significant effects on the ambient interstellar medium (ISM) via either strong UV radiation or powerful stellar winds. These winds also...

We study the presence of low intensity high velocity components, which we have termed wing features in the integrated Hα emission line profiles of the H II...

The galaxies NGC 3359, NGC 6951 and NGC 1530 were observed with the TAURUS-II Fabry-Perot interferometer at the 4.2m William Herschel Telescope (WHT) on La...

We present results from integral field optical spectroscopy with the Potsdam Multi-Aperture Spectrograph of the Herbig-Haro (HH) object HH 204, with a spatial...

Preliminary results of a program aimed at investigating the presence of H II regions around Seyfert nuclei are presented. Extended zones of ionized gas have...

We present echelle spectroscopy in the 3500-10300Å range of the Hourglass Nebula, which is embedded in the Galactic H II region M8. The data were obtained using...

We present echelle spectroscopy in the 3500-10300 Å range of the Hourglass Nebula, which is embedded in the Galactic H II region M8. The data were obtained...