ISSN:
1572-946X
Keywords:
jets and outflows
;
reflection nebulae
;
TMC1
;
TMC1A
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract High resolution interferometric COJ=1−0 observations of the outflows from two young embedded sources, TMC1 and TMC1A, show the high-velocity gas to have a conical structure, with a constant opening angle of ∼ 45° extending to within 1000 AU of the central stars. The correspondence of near-infrared reflection nebulosity atK band with blueshifted CO emission in both objects suggests the lobes are partially evacuated, as do position-velocity diagrams from single-dish COJ=2−1 data. We suggest that the outflows are driven by jets which impart momentum to the ambient medium through shocks, rather than through the entrainment of molecular material along the edges of the jet.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00667831
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