The burst mode of accretion in primordial star formation
- Autor(en)
- Alexander L. DeSouza, Eduard Vorobiev, Shantanu Basu
- Abstrakt
We present simulation results for the formation and long-term evolution of a primordial protostellar disk harbored by a first star. Using a 2+1D nonaxisymmetric thin disk numerical simulation, together with a barotropic relation for the gas, we are able to probe ∼20 kyr of the disk's evolution. During this time periodwe observe fragmentation leading to loosely bound gaseous clumps within the disk. These are then torqued inward and accreted onto the growing protostar, giving rise to a burst phenomenon. The luminous feedback produced by this mechanism may have important consequences for the subsequent growth of the protostar.
- Organisation(en)
- Institut für Astrophysik
- Externe Organisation(en)
- University of Western Ontario, Southern Federal University
- Band
- 1480
- Seiten
- 346-348
- Anzahl der Seiten
- 3
- DOI
- https://doi.org/10.1063/1.4754382
- Publikationsdatum
- 09-2012
- ÖFOS 2012
- 103004 Astrophysik
- Schlagwörter
- ASJC Scopus Sachgebiete
- Allgemeine Physik und Astronomie
- Link zum Portal
- https://ucrisportal.univie.ac.at/de/publications/f43ddd4e-60d0-4f60-8dad-1828e90fec83