Other
Scientific paper
Apr 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aps..apr.h3003f&link_type=abstract
American Physical Society, April Meeting, 2003, April 5-8, 2003 Philadelphia, Pennsylvania, MEETING ID: APR03, abstract #H3.003
Other
Scientific paper
Hot X-ray emitting gas was discovered in galaxies with the Einstein Observatory, 25 year ago. This hot Interstellar Medium (ISM) may be in thermal equilibrium with the stars in large galaxy bulges (e.g. elliptical and lenticular galaxies) or may be heated by supernovae (SNIa). In star-forming galaxies (spirals, irregulars, merging galaxies) the ISM may be heated by star formation activity, via stellar winds and most efficiently supernova explosions. In this talk I will address recent Chandra observations of hot ISM in star-forming galaxies. X-ray observations of nearby galaxies, in combination with data from other regions of the electromagnetic spectrum, have revealed a complex multi-phase ISM in active star forming regions. Hot super-winds are seen escaping star-burst nuclei, undoubtly carrying with them elements into the intergalactic space. The study of these galaxies may give us a direct (albeit down-scaled) view of galaxy formation in act.
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