Abstract
Following the selection of comet 67P/Churyumov-Gerasimenko as the new target of the Rosetta/ESA mission, observations of this comet were performed at the 30-m telescope of the Institut de radioastronomie millimétrique in May–June 2003. Observations focussed on the CO J(2–1) and J(1–0) lines and dust thermal continuum at 1.2 mm in order to constrain the CO and dust productions at 3 AU from the Sun. Neither the CO lines, nor the continuum emission were detected. The derived 3–σ upper limit on the CO production rate is QCO < 9.2 × 1026 molecules s−1. That derived for the dust production rate is strongly model dependent, and at best is Qdust < 36 kg s−1. The first synthetic CO line profiles computed with a 3-D gas-dynamical simulation of a gas coma are presented.
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Bockelée-Morvan, D. et al. (2004). CO and Dust Productions in 67P/Churyumov-Gerasimenko at 3 AU Post-Perihelion. In: Colangeli, L., Epifani, E.M., Palumbo, P. (eds) The New Rosetta Targets. Astrophysics and Space Science Library, vol 311. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-2573-0_3
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DOI: https://doi.org/10.1007/978-1-4020-2573-0_3
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