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Observations of supershells in the interstellar medium of nearby galaxies

Brinks, Elias; Bagetakos, Ioannis; Walter, Fabian; de Blok, Willem


HI observations at sufficiently high spatial and velocity resolution have revealed a wealth of structures such as shells and bubbles in the ISM of latetype galaxies. These structures are filled with metalenriched, coronal gas from SNe which, through overpressure, powers their expansion. Material swept up by these expanding shells can go critical and form subsequent (secondary or propagating) star formation. Shells that grow larger than the thickness of the gas layer will blow out of the disk,...[Show more]

CollectionsANU Research Publications
Date published: 2007
Type: Conference paper
Source: Triggered Star Formation in a Turbulent ISM
DOI: 10.1017/S1743921307001251


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