Imprints of Stellar Encounters in the ONC

Details Imprints of Stellar Encounters in the ONC Imprints of Stellar Encounters in the ONC

May 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008iaus..246...67o&link_type=abstract

Dynamical Evolution of Dense Stellar Systems, Proceedings of the International Astronomical Union, IAU Symposium, Volume 246, p.

Astronomy and Astrophysics

Astronomy

Stellar Dynamics, Methods: Data Analysis, N-Body Simulations, Stars: Kinematics, Circumstellar Matter

Scientific paper

External destruction of protoplanetary discs acts mainly due to two mechanisms: gravitational drag by stellar encounters and evaporation by stellar winds and radiation. It is an important question whether any of these mechanisms is important in the stellar evolution process. We focus on the effect of stellar encounters and investigate if there are any observables that could trace this mechanism in young stellar clusters. An analysis of observational data of the Orion Nebula Cluster (ONC) and accompanying n-body simulations both provide evidence for encounters of star-disc systems in the ONC, eventually leading to substantial disk disruption.

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