Mathematics – Logic
Scientific paper
May 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...198.5202s&link_type=abstract
American Astronomical Society, 198th AAS Meeting, #52.02; Bulletin of the American Astronomical Society, Vol. 33, p.862
Mathematics
Logic
Scientific paper
With an order-of-magnitude increase in spatial resolution over any previous or other current X-ray instrumentation, the Chandra X-ray Observatory is revolutionizing our understanding of the most energetic gas in starburst-driven outflows. I will present Chandra ACIS observations of 6 edge-on starburst galaxies, and 3 starbursting dwarf galaxies. Superwinds are seen most spectacularly in both X-ray and optical Hα emission, and Chandra is showing us that these two phases are closely connected. In many galaxies, over a wide range of physical scales from the central few hundred pc to the larger 10 kpc-scale winds, the X-ray emission appears to arise in low volume filling factor regions in close proximity to the filamentary Hα emission. I shall discuss the implications of this observation with respect to both theoretical models for superwinds, and to the physical processes responsible for X-ray emission from winds. These findings also have major implications for quantifying the role of superwinds in the heating and enrichment of the IGM and assessing their cosmological impact, which I will briefly discuss in conclusion.
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