Global spiral modes in star-forming gravitating disks
- Author(s)
- Vladimir I. Korchagin, Christian Theis
- Abstract
Using 2D nonlinear simulations, we study the generation and nonlinear evolution of spiral structure in a star-forming multi-component gravitating disk. We confirm in agreement with previous studies the destabilizing role of a cold gaseous component and extend this conclusion for multi-component star-forming disks exchanging mass and momentum between its components. We show that the spiral structure growing on a non-stationary multi-phase background reaches its saturation in a similar manner like the one-component disks. The spiral structure survives even if most of the gas is transformed into stellar remnants of larger velocity dispersion.
- Organisation(s)
- Department of Astrophysics
- External organisation(s)
- Southern Federal University
- Journal
- Astronomy & Astrophysics
- Volume
- 347
- Pages
- 442-454
- No. of pages
- 13
- ISSN
- 0004-6361
- Publication date
- 1999
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103003 Astronomy
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/global-spiral-modes-in-starforming-gravitating-disks(6e115d88-cd74-46ac-bb72-30ec32a3eacc).html