Fragmentation in a rotating protostar: a comparison of two three-dimensional computer codes.
Abstract
The collapse of an isothermal protostellar cloud with pressure, gravity, and rotation included is followed with two independent computer codes. For the initial condition, a nonaxisymmetric perturbation of mode m = 2 and 50% amplitude is introduced into a cloud of 1 solar mass with a mean density of 1.44 x 10 to the -17g/cu cm and a uniform angular velocity of 1.6 x 10 to the -12 rad/sec. The collapse is followed through an increase in density of over four orders of magnitude to the point where a binary protostar forms. The agreement between the results of the two calculations is good.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- November 1979
- DOI:
- 10.1086/157497
- Bibcode:
- 1979ApJ...234..289B
- Keywords:
-
- Computer Programs;
- Gravitational Collapse;
- Hydrodynamics;
- Mathematical Models;
- Protostars;
- Stellar Evolution;
- Binary Stars;
- Fragmentation;
- Pressure Effects;
- Stellar Gravitation;
- Stellar Rotation;
- Astrophysics;
- Collapse:Protostellar Clouds;
- Protostellar Clouds:Hydrodynamics;
- Protostellar Clouds:Star Formation