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http://dx.doi.org/10.5303/JKAS.2004.37.4.217

SUPERBUBBLES AS SPACE BAROMETERS  

GARCIA-SEGURA G. (Instituto de Astronomfa, Universidad Nacional Autonoma de Mexico)
OEY M. S. (Lowell Observatory, Department of Astronomy, 830 Dennison Building, University of Michigan)
Publication Information
Journal of The Korean Astronomical Society / v.37, no.4, 2004 , pp. 217-222 More about this Journal
Abstract
High ambient interstellar pressure is suggested as a possible factor to explain the ubiquitous ob-served growth-rate discrepancy for supernova-driven super bubbles and stellar wind bubbles. Pressures of P / k ${\~} 10^5\;cm^{-3}$ K are plausible for regions with high star formation rates, and these values are intermediate between the estimated Galactic mid-plane pressure and those observed in starburst galaxies. High-pressure components also are commonly seen in Galactic ISM localizations. We demonstrate the sensitivity of shell growth to the ambient pressure, and suggest that super bubbles ultimately might serve as ISM barometers.
Keywords
galaxies: ISM; Magellanic Clouds; ISM: bubbles; ISM: general; supernova remnants;
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