1.3 mm Plateau de Bure Observations of IRC+10216

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• 作者：R. Lucas
• 刊名：Astrophysics and Space Science
• 出版年：1997
• 出版时间：1997
• 年：1997
• 卷：251
• 期：1/2
• 页码：247-250
• 全文大小：154 KB

文摘

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.