Submm Observations of Prestellar Condensations: Probing the Initial Conditions for the IMF

  • Philippe André
Conference paper
Part of the Astrophysics and Space Science Library book series (ASSL, volume 327)


Several (sub)millimeter continuum surveys of nearby protoclusters have revealed prestellar condensations that seem to be the direct progenitors of individual stars and whose mass distribution resembles the IMF. In a number of cases, small internal and relative motions are measured for these protocluster condensations, indicating they are much less turbulent than their ambient cloud and do not have time to interact before collapsing to (proto)stars. These findings suggest that the IMF is at least partly determined by pre-collapse cloud fragmentation and that the main key to understanding the origin of stellar masses lies in the physical mechanisms responsible for the formation and decoupling of prestellar condensations within molecular clouds.


Mass Distribution Star Formation Velocity Dispersion Molecular Cloud Stellar Mass 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer 2005

Authors and Affiliations

  • Philippe André
    • 1
  1. 1.CEA Saclay, Service d’AstrophysiqueFrance

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