EPoS Contribution
EPoS Contribution
Star forming environment on multiple star formation pathways

Rajika Kuruwita
NBI, Copenhagen, DK
Observations of protostars in star forming regions find a bimodal distribution in the separations of young binaries/multiple star systems. The peak at larger separations (3000au) is often attributed to core fragmentation while the smaller peak (75au) is attributed to disk fragmentation. In my work I have been using RAMSES MHD code to simulate cluster formation in turbulent 4 pc3 boxes of varying masses to investigate the influence of environment on the formation pathways of multiple star systems, their early evolution, and the impact on observations.
Caption: The figure shows the fraction of system formed via core fragmentation and dynamical capture. Delayed core fragmentation is the scenario in which a sink particle is formed unbound, but becomes bound to the sink it was most bound to at birth. We find that with lower mass GMCs, the fraction of systems formed through core fragmentation is greater due to a measured higher degree of clustering (found using Two point correlation functions). With higher mass GMCs, dynamical capture becomes slight more dominant.
Collaborators:
T. Haugbolle, NBI, DK
Suggested Session: Cores