Fakultät für Physik und Astronomie
STEPHEN PHILLIPS hostreviews.co.uk / UNSPLASH

Superbubbles, stellar feedback and triggering of star formation in nearby galaxies

Oleg Egorov , ARI

Stellar feedback plays an important role in regulation of the structure, kinematics and chemical abundance of interstellar medium. Multiple stellar winds and supernovae explosions create large holes and superbubbles in the ISM with sizes varying from several pc to several kpc, which were detected in many nearby galaxies. The interaction of the superbubbles might even trigger the new episode of star formation, while an intensive starburst could cause a development of the galaxy-wide outflows. These effects are especially important in the dwarf irregular galaxies - the feedback-driven structures can grow to larger sizes than and survive longer thanks to lack of spiral waves and the thick gaseous disks. In my talk I will focus on the multiwavelength analysis of the interplay between massive stars and ISM in nearby galaxies. In particular, I will overview the results of our observations of the ionized gas in star-forming regions of nearby dwarf galaxies performed with the high spectral resolution Fabry-Perot interferometer (FPI). I will also introduce the SIGMA-FPI archive which contain the FPI data cubes in Halpha line and results of their analysis for about 80 nearby dwarf galaxies.

ARI Institute Colloquium
17 Jun 2021, 11:15
ARI, Moenchhofstrasse 12-14, Seminarraum 1, 1.OG

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