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The Australia Telescope National Facility Colloquium
15:30-16:30 Wed 17 Nov 2004

ATNF Marsfield Lecture Theatre

Prof. Eric Wilcots

(University of Wisconsin - Madison)

Diffuse Hot Gas in Spiral Galaxies - Prof. Eric Wilcots Colloquium

The Sun resides within a several hundred parsec bubble devoid of neutral
gas, but filled with a diffuse X-ray emitting plasma. X-ray observations over the past two decades show us that there are a number of similar bubbles throughout the Milky Way, but the true filling factor of hot gas in our Galaxy remains unknown. This is largely because of the difficulty of observing X-ray emission from our location within the Galactic disk. The high resolution and good sensitivity of the Chandra X-ray Observatory (CXO), however, makes it possible to accurately map the distribution of diffuse hot gas in other spiral galaxies. In this talk I will review a number of recent efforts to understand the physical properties of the diffuse hot interstellar medium and address the question of the filling factor of hot gas in spiral galaxies.

More information

Contact

D.J. Pisano
DJ.Pisano@csiro.au

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