Circumprotostellar environments. I - Molecular outflows from protostar candidates in Taurus

Astronomy and Astrophysics – Astrophysics

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Molecular Flow, Pre-Main Sequence Stars, Protostars, Stellar Envelopes, Stellar Mass Ejection, Taurus Constellation, Interstellar Matter, Jet Flow, Stellar Evolution

Scientific paper

We report on the search for molecular outflows from a complete, flux-limited, IRAS-selected sample of cold, low-mass protostar candidates located in the Taurus cloud complex. We find that 18 of the 24 sources have outflows associated with them, only four of which have been previously reported, implying that these sources are predominantly protostars in an early stage of evolution. We argue that at least a few of the outflows are very small in extent, indicating that their dynamical ages are less than a few thousand years.

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