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2000ApJ...538..728G - Astrophys. J., 538, 728-737 (2000/August-1)
Very large array observations of high-velocity H I in L1551.
GIOVANARDI C., RODRIGUEZ L.F., LIZANO S. and CANTO J.
Abstract (from CDS):
We find that the continuum emission spectrum of IRS 5, on scales of 10", is similar to those of H II regions. This can be explained if most of the emission comes from material ionized by UV radiation from shock fronts due to the interaction of the stellar wind against the ambient cloud. The momentum rate required to produce the extended centimeter emission agrees well with the wind P{dot} obtained by fitting the line profiles.
Finally, the location of a background extragalactic continuum source in the red lobe allows us to probe the physical conditions of the neutral wind. We find that the most probable H I spin temperature in the wind is in the range 25-50 K, in agreement with predictions of the thermal structure of such winds.
Abstract Copyright: ∼
Journal keyword(s): ISM: individual (L1551) - ISM: Jets and Outflows - Radio Lines: ISM - Stars: Mass Loss - Stars: Pre-Main-Sequence
Nomenclature: Table 1: [GRL2000] NN (Nos 1-26).
Simbad objects: 36