Supershells: origin, evolution and fragmentation

Authors
Palous, J Ehlerova, S
Citation
J. Palous et S. Ehlerova, Supershells: origin, evolution and fragmentation, NEW ASTR R, 44(4-6), 2000, pp. 369-373
Citations number
22
Categorie Soggetti
Space Sciences
Journal title
NEW ASTRONOMY REVIEWS
ISSN journal
13876473 → ACNP
Volume
44
Issue
4-6
Year of publication
2000
Pages
369 - 373
Database
ISI
SICI code
1387-6473(200007)44:4-6<369:SOEAF>2.0.ZU;2-I
Abstract
The origin of HI shells: in the Milky Way and nearby galaxies may be connec ted to the energy released by young and massive OB stars, supernova or hype rnova explosions, or to the energy inputs related to gamma ray bursts. We d escribe the evolution of shells in spiral and dwarf galaxies and distinguis h between different origins. We also discuss the conditions, when they frag ment and trigger star formation. (C) 2000 Elsevier Science B.V. All rights reserved.