Recent progress in understanding the hot and warm gas phases in the halos of star-forming galaxies
نویسنده
چکیده
In this contribution we present a few selected examples of how the latest generation of space-based instrumentation – NASA’s Chandra X-ray Observatory and the Far-Ultraviolet Spectroscopic Explorer (FUSE) – are finally answering old questions about the influence of massive star feedback on the warm and hot phases of the ISM and IGM. In particular, we discuss the physical origin of the soft thermal X-ray emission in the halos of star-forming and starburst galaxies, its relationship to extra-planar Hα emission, and plasma diagnostics using FUSE observations of O vi absorption and emission.
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Warm Ionized Gas on the Outskirts of Active and Star-Forming Galaxies
The preliminary results from a deep emission-line search for warm ionized material in the halos of nearby active and star-forming galaxies are presented. The origin of this gas is discussed in the context of galaxy formation and evolution.
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