Hartogh, P. and Lellouch, E. and Crovisier, J. and Banaszkiewicz, M. and Bensch, F. and Bergin, E. A. and Billebaud, F. and Biver, N. and Blake, G. A. and Blecka, M. I. and Blommaert, J. and Bockelée-Morvan, D. and Cavalié, T. and Cernicharo, J. and Courtin, R. and Davis, G. and Decin, L. and Encrenaz, P. and Encrenaz, T. and González, A. and de Graauw, T. and Hutsemékers, D. and Jarchow, C. and Jehin, E. and Kidger, M. and Küppers, M. and de Lange, A. and Lara, L.-M. and Lis, D. C. and Lorente, R. and Manfroid, J. and Medvedev, A. S. and Moreno, R. and Naylor, D. A. and Orton, G. and Portyankina, G. and Rengel, M. and Sagawa, H. and Sánchez-Portal, M. and Schieder, R. and Sidher, S. and Stam, D. and Swinyard, B. and Szutowicz, S. and Thomas, N. and Thornhill, G. and Vandenbussche, B. and Verdugo, E. and Waelkens, C. and Walker, H. (2009) Water and related chemistry in the solar system. A guaranteed time key programme for Herschel. Planetary and Space Science, 57 (13). pp. 1596-1606. ISSN 0032-0633 http://resolver.caltech.edu/CaltechAUTHORS:20091222-105100502
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“Water and related chemistry in the Solar System” is a Herschel Space Observatory Guaranteed-Time Key Programme. This project, approved by the European Space Agency, aims at determining the distribution, the evolution and the origin of water in Mars, the outer planets, Titan, Enceladus and the comets. It addresses the broad topic of water and its isotopologues in planetary and cometary atmospheres. The nature of cometary activity and the thermodynamics of cometary comae will be investigated by studying water excitation in a sample of comets. The D/H ratio, the key parameter for constraining the origin and evolution of Solar System species, will be measured for the first time in a Jupiter-family comet. A comparison with existing and new measurements of D/H in Oort-cloud comets will constrain the composition of pre-solar cometary grains and possibly the dynamics of the protosolar nebula. New measurements of D/H in giant planets, similarly constraining the composition of proto-planetary ices, will be obtained. The D/H and other isotopic ratios, diagnostic of Mars’ atmosphere evolution, will be accurately measured in H_2O and CO. The role of water vapor in Mars’ atmospheric chemistry will be studied by monitoring vertical profiles of H_2O and HDO and by searching for several other species (and CO and H_2O isotopes). A detailed study of the source of water in the upper atmosphere of the Giant Planets and Titan will be performed. By monitoring the water abundance, vertical profile, and input fluxes in the various objects, and when possible with the help of mapping observations, we will discriminate between the possible sources of water in the outer planets (interplanetary dust particles, cometary impacts, and local sources). In addition to these inter-connected objectives, serendipitous searches will enhance our knowledge of the composition of planetary and cometary atmospheres.
|Additional Information:||© 2009 Elsevier Ltd. Received 19 March 2009; revised 25 June 2009; accepted 16 July 2009. Available online 25 July 2009.|
|Subject Keywords:||Herschel space observatory; Water; Mars; Giant planets; Titan; Comets|
|Official Citation:||P. Hartogh, E. Lellouch, J. Crovisier, M. Banaszkiewicz, F. Bensch, E.A. Bergin, F. Billebaud, N. Biver, G.A. Blake, M.I. Blecka, J. Blommaert, D. Bockelee-Morvan, T. Cavalie, J. Cernicharo, R. Courtin, G. Davis, L. Decin, P. Encrenaz, T. Encrenaz, A. Gonzalez, T. de Graauw, D. Hutsemekers, C. Jarchow, E. Jehin, M. Kidger, M. Kuppers, A. de Lange, L.-M. Lara, D.C. Lis, R. Lorente, J. Manfroid, A.S. Medvedev, R. Moreno, D.A. Naylor, G. Orton, G. Portyankina, M. Rengel, H. Sagawa, M. Sanchez-Portal, R. Schieder, S. Sidher, D. Stam, B. Swinyard, S. Szutowicz, N. Thomas, G. Thornhill, B. Vandenbussche, E. Verdugo, C. Waelkens, H. Walker, Water and related chemistry in the solar system. A guaranteed time key programme for Herschel, Planetary and Space Science, Volume 57, Issue 13, Surfaces and Atmospheres of the Outer Planets, Their Satellites and Ring Systems: Part V, November 2009, Pages 1596-1606, ISSN 0032-0633, DOI: 10.1016/j.pss.2009.07.009. (http://www.sciencedirect.com/science/article/B6V6T-4WVF6RP-2/2/28e8fefadcef4d5dcbd84db9fe9c460d)|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Tony Diaz|
|Deposited On:||05 Jan 2010 22:52|
|Last Modified:||26 Dec 2012 11:39|
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