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Stellar feedback and triggered star formation
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SYSNO ASEP 0355326 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Stellar feedback and triggered star formation Author(s) Palouš, Jan (ASU-R) RID, ORCID
Wünsch, Richard (ASU-R) RID, ORCID
Dale, James E. (ASU-R)
Sidorin, Vojtěch (ASU-R)
Whitworth, A. (GB)Source Title Star clusters: basic galactic building blocks throughout time and space. - Cambridge : Cambridge University Press, 2010 / DeGrijs R. - ISSN 1743-9213 - ISBN 978-0-521-76499-5 Pages s. 41-45 Number of pages 5 s. Action Symposium of the International Astronomical Union /266./ Event date 10.08.2009-14.08.2009 VEvent location Rio de Janeiro Country BR - Brazil Event type EUR Language eng - English Country GB - United Kingdom Keywords stars formation ; galaxies ; star clusters Subject RIV BN - Astronomy, Celestial Mechanics, Astrophysics R&D Projects LC06014 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z10030501 - ASU-R (2005-2011) UT WOS 000282782600006 DOI 10.1017/S1743921309990858 Annotation Young, massive stars influence their ambient medium through winds and radiation. The outcome of this feedback depends on the number of massive stars in a star cluster and on the density of the ambient medium. This contribution is based on a comparison of observations to the results of numerical simulations. We discuss the gravitational fragmentation of feedback-driven shells expanding from young stellar clusters. The thin-shell approximation is compared to 3D hydrodynamical simulations with smoothed-particle hydrodynamics and adaptive-mesh refinement codes. We explore the influence of external pressure and propose a thick-shell dispersion relation, where the pressure of the external medium is included. The mass spectrum of the shell fragments is constructed and we speculate about the origin of the deficit of low-mass objects. Workplace Astronomical Institute Contact Radka Svašková, bibl@asu.cas.cz, Tel.: 323 620 326 Year of Publishing 2011
Number of the records: 1