The Supershell-Molecular Cloud Connection in the Milky Way and Beyond
conference contribution
posted on 2023-05-23, 17:37authored byJoanne Dawson, McClure-Griffiths, NM, Fukui, Y, John DickeyJohn Dickey, Wong, T, Hughes, A, Kawamura, A
The role of large-scale stellar feedback in the formation of molecular clouds has been investigated observationally by examining the relationship between Hi and 12CO(J = 1−0) in supershells. Detailed parsec-resolution case studies of two Milky Way supershells demonstrate an enhanced level of molecularisation over both objects, and hence provide the first quantitative observational evidence of increased molecular cloud production in volumes of space affected by supershell activity. Recent results on supergiant shells in the LMC suggest that while they do indeed help to organise the ISM into over-dense structures, their global contribution to molecular cloud formation is of the order of only ¡ 10%.
History
Publication title
Proceedings of the International Astronomical Union
Volume
8
Editors
Dr Ian F. Corbett, Uta Grothkopf, Christiann Sterken
Pagination
83-86
ISSN
1743-9213
Department/School
School of Natural Sciences
Publisher
Cambridge University Press
Place of publication
United Kingdom
Event title
Symposium S292 (Molecular Gas, Dust, and Star Formation in Galaxies)