Star formation in a multi-phase ISM
- Author(s)
- Stefan Harfst, Christian Theis, Gerhard Hensler
- Abstract
We present a 3d code for the dynamical evolution of a multi-phase interstellar medium (ISM) coupled to stars via star formation (SF) and feedback processes. The multi-phase ISM consists of clouds (sticky particles) and diffuse gas (SPH): exchange of matter, energy and momentum is achieved by drag (due to ram pressure) and condensation or evaporation processes. The cycle of matter is completed by SF and feedback by SNe and PNe. A SF scheme based on a variable SF efficiency as proposed by Elmegreen and Efremov (1997) is presented. For a Milky Way type galaxy we get a SF rate of ~1 M? yr-1 with an average SF efficiency of ~5%.
- Organisation(s)
- Department of Astrophysics
- External organisation(s)
- Christian-Albrechts-Universität zu Kiel
- Journal
- Astrophysics and Space Science
- Volume
- 284
- Pages
- 869-872
- No. of pages
- 4
- ISSN
- 0004-640X
- Publication date
- 2003
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103003 Astronomy
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/star-formation-in-a-multiphase-ism(8f8dbf1d-c1f8-484a-918c-2f1da21b818c).html