Hierarchical formation of Westerlund 1: a collapsing cluster with no primordial mass segregation? Article Swipe
Related Concepts
Physics
Substructure
Mass segregation
Cluster (spacecraft)
Astrophysics
Stars
Astronomy
Star cluster
Engineering
Structural engineering
Computer science
Programming language
Mario Gennaro
,
S. P. Goodwin
,
R. J. Parker
,
Richard J. Allison
,
W. Brandner
·
YOU?
·
· 2017
· Open Access
·
· DOI: https://doi.org/10.1093/mnras/stx2098
· OA: W2747161771
YOU?
·
· 2017
· Open Access
·
· DOI: https://doi.org/10.1093/mnras/stx2098
· OA: W2747161771
We examine the level of substructure and mass segregation in the massive,\nyoung cluster Westerlund 1. We find that it is relatively smooth, with little\nor no mass segregation, but with the massive stars in regions of significantly\nhigher than average surface density. While an expanding or bouncing-back\nscenario for the evolution of Westerlund 1 cannot be ruled out, we argue that\nthe most natural model to explain these observations is one in which Westerlund\n1 formed with no primordial mass segregation and at a similar or larger size\nthan we now observe.\n
Related Topics
Finding more related topics…