Disappearance of N2H+ from the Gas Phase in the Class 0 Protostar IRAM 04191

A. Belloche; P. Andre

doi:10.1007/978-3-642-18902-9_110

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Disappearance of N2H+ from the Gas Phase in the Class 0 Protostar IRAM 04191

A. Belloche·P. Andre

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Abstract

We present a high-resolution spectroscopic study of the envelope of the young Class 0 protostar IRAM 04191+1522 in Taurus. N2H+(1-0) observations with the Plateau de Bure Interferometer and the IRAM 30m telescope demonstrate that the molecular ion N2H+ disappears from the gas phase in the inner envelope (r < 1600 AU, n(H2) > 4-7 * 1e5 cm-3). This may result from N2 depletion on polar ice mantles and enhanced grain chemistry.

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A. Belloche, P. Andre. 2004-02-01. Disappearance of N2H+ from the Gas Phase in the Class 0 Protostar IRAM 04191. https://doi.org/10.1007/978-3-642-18902-9_110

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