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1.3 mm Plateau de Bure Observations of IRC+10216
Authors:R Lucas
Institution:(1) Institut de Radio Astronomie Millimétrique, 300 rue de la Piscine, F-38406 Saint Martin d'Hères Cedex, France
Abstract:The Plateau de Bure millimeter-wave interferometer has been used at 1.3 mm wavelength to observe the prototype carbon-star IRC+10216 in the continuum and in the v = 1, J = 13 − 11 transition of SiS at 234.8 GHz. The 3 mm continuum and the v = (0, 20, 2), J = 1 − 0 HCN transition were simultaneously observed. The source of vibrationally excited SiS appears resolved, and a source size of ∼ 0.4″ or 7 1014cm (10 stellar radii) is derived, in agreement with a crude model of line formation. This revised version was published online in September 2006 with corrections to the Cover Date.
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