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Fragmentation and dynamics in Massive Dense Cores in Cygnus-X

  • T. Csengeri (a1), S. Bontemps (a2), N. Schneider (a1) and F. Motte (a1)

Abstract

A systematic, high angular-resolution study of IR-quiet Massive Dense Cores (MDCs) of Cygnus-X in continuum and high-density molecular tracers is presented. The results are compared with the quasi-static and the dynamical evolutionary scenario. We find that the fragmentation properties are not compatible with the quasi-static, monolithic collapse scenario, nor are they entirely compatible with the formation of a cluster of mostly low-mass stars. The kinematics of MDCs shows individual velocity components appearing as coherent flows, which indicate important dynamical processes at the scale of the mass reservoir around high-mass protostars.

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Keywords

Fragmentation and dynamics in Massive Dense Cores in Cygnus-X

  • T. Csengeri (a1), S. Bontemps (a2), N. Schneider (a1) and F. Motte (a1)

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