http://arxiv.org/abs/1712.08485
We explore scenarios for the dynamical ejection of stars BN and x from source I in the Kleinmann-Low nebula of the Orion Nebula Cluster (ONC), which is important for being the closest region of massive star formation. This ejection would cause source I to become a close binary or a merger product of two stars. We thus consider binary-binary encounters as the mechanism to produce this event. By running a large suite of $N$-body simulations, we find that it is nearly impossible to match the observations when using the commonly adopted masses for the participants, especially a source I mass of $7:{\rm{M}}\odot$. The only way to recreate the event is if source I is more massive, i.e., $\sim20:{\rm{M}}\odot$. However, even in this case, the likelihood of reproducing the observed system is low. We discuss the implications of these results for understanding this important star-forming region.
J. Farias and J. Tan
Mon, 25 Dec 17
8/37
Comments: 7 pages, 4 figures, 1 table. Submitted to A&A letters. Comments welcome!
You must be logged in to post a comment.