Radio Sources Embedded in the Dense Core B59, the "Mouthpiece" of the
  Pipe Nebula
  We present Very Large Array continuum observations made at 8.3 GHz toward the
dense core B59, in the Pipe Nebula. We detect six compact sources, of which
five are associated with the five most luminous sources at 70 micrometer in the
region, while the remaining one is probably a background source. We propose
that the radio emission is free-free from the ionized outflows present in these
protostars. We discuss the kinematical impact of these winds in the cloud. We
also propose that these winds are optically thick in the radio but optically
thin in the X-rays and that this characteristic can explain why X-rays from the
magnetosphere are detected in three of them, while the radio emission is most
probably dominated by the free-free emission from the external layers of the
wind.
