Collimated jets from the first core
  We have performed Smoothed Particle Magnetohydrodynamics (SPMHD) simulations
demonstrating the production of collimated jets during collapse of 1 solar mass
molecular cloud cores to form the `first hydrostatic core' in low mass star
formation. Recently a number of candidate first core objects have been
observed, including L1448 IRS2E, L1451-mm and Per Bolo 58, although it is not
yet clear that these are first hydrostatic cores. Recent observations of Per
Bolo 58 in particular appear to show collimated, bipolar outflows which are
inconsistent with previous theoretical expectations. We show that low mass
first cores can indeed produce tightly collimated jets (opening angles <~ 10
degrees) with speeds of ~2-7 km/s, consistent with some of the observed
candidates. We have also demonstrated, for the first time, that such phenomena
can be successfully captured in SPMHD simulations.
