Bibcode
Weidner, C.; Bonnell, I. A.; Moeckel, N.
Bibliographical reference
Monthly Notices of the Royal Astronomical Society, Volume 410, Issue 3, pp. 1861-1869.
Advertised on:
1
2011
Citations
12
Refereed citations
9
Description
With the use of N-body calculations, the numbers and properties of
escaping stars from low-N (N= 100 and 1000) young embedded star clusters
prior to gas expulsion are studied over the first 5 Myr of their
existence. Besides the numbers of stars, different initial radii and
binary populations are also examined as well as virialized and
collapsing clusters. It is found that these clusters can lose
substantial amounts (up to 20 per cent) of stars within 5 Myr, with
considerable velocities of up to more than 100 km s-1. Even
with their mean velocities between 2 and 8 km s-1, these
stars will still travel between 2 and 30 pc during the 5 Myr. Therefore
large numbers of distributed stars in star-forming regions cannot
necessarily be counted as evidence for the isolated formation of stars.