The Breakout of Protostellar Winds in the Infalling Environment
| dc.creator | Wilkin, Francis P. | |
| dc.date | 2002-11-26 | |
| dc.date.accessioned | 2026-07-07T02:06:34Z | |
| dc.date.available | 2026-07-07T02:06:34Z | |
| dc.description | The time of protostellar wind breakout may be determined by the evolution of the infalling flow, rather than any sudden change in the central engine. I examine the transition from pure infall to outflow, in the context of the inside-out collapse of a rotating molecular cloud core. I have followed numerically the motion of the shocked shell created by the impact of a stellar wind and infalling gas. These fully time-dependent calculations include cases both where the shell falls back to the stellar surface, and where it breaks out as a true outflow. Assuming a wind launched from the protostellar surface, the breakout time is determined in terms of the parameters describing the wind (Mdot_w, V_w) and collapsing cloud core (a_0, Omega). The trapped wind phase consists of a wind sufficiently strong to push material back from the stellar surface, but too weak to carry the heavy, shocked infall out of the star's gravitational potential. To produce a large-scale outflow, the shocked material must be able to climb out of the star's gravitational potential well, carrying with it the dense, swept-up infall. | |
| dc.description | 5 Pages, Proceedings of "The Interaction of Stars with their Environment II", Budapest, Hungary May 15-18, 2002 | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0211583 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0211583 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/5405 | |
| dc.subject | Astrophysics | |
| dc.title | The Breakout of Protostellar Winds in the Infalling Environment | |
| dc.type | text |