Radiation Driven Implosion and Triggered Star Formation

0360924 - ASÚ 2012 RIV GB eng C - Konferenční příspěvek (zahraniční konf.)
Bisbas, Thomas G. - Whitworth, A. - Wünsch, Richard - Hubber, D.A. - Walch, S.
Radiation Driven Implosion and Triggered Star Formation.
Computational Star Formation. Cambridge: Cambridge University Press, 2011 - (Alves, J.), s. 263-266. IAU Symposium Proceedings Series, IAU S270. ISBN 9780521766432. ISSN 1743-9213.
[Symposium of the International Astronomical Union /270./. Barcelona (ES), 31.05.2010-04.06.2010]
Grant CEP: GA MŠMT(CZ) LC06014
Výzkumný záměr: CEZ:AV0Z10030501
Klíčová slova: hydrodynamics * numerical methods * stars formation
Kód oboru RIV: BN - Astronomie a nebeská mechanika, astrofyzika

We present simulations of stable isothermal clouds exposed to ionizing radiation from a discrete external source, and identify the conditions that lead to Radiatively Driven Implosion and Star Formation. We use the Smoothed Particle Hydrodynamics code SEREN (Hubber et al. 2010) and the HEALPix-based photoionization algorithm described in Bisbas et al. (2009). We find that the incident ionizing flux is the critical parameter determining the evolution; high fluxes disperse the cloud, whereas low fluxes trigger star formation. We find a clear connection between the intensity of the incident flux and the parameters of star formation.
Trvalý link: http://hdl.handle.net/11104/0198363