Reference : Observations of the rotational lines of OH in comets with the Herschel Space Observatory
Scientific congresses and symposiums : Paper published in a journal
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/107050
Observations of the rotational lines of OH in comets with the Herschel Space Observatory
English
Crovisier, J. [LESIA, Observatoire de Paris, Meudon, France, (jacques.crovisier@obspm.fr)]
Bockelée-Morvan, D. [LESIA, Observatoire de Paris, Meudon, France, (jacques.crovisier@obspm.fr)]
Biver, N. [LESIA, Observatoire de Paris, Meudon, France, (jacques.crovisier@obspm.fr)]
Hartogh, P. [Max-Planck-Institut für Sonnensystemforschung, Katlenburg-Lindau, Germany]
Hutsemekers, Damien mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)]
Jehin, Emmanuel mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image]
Küppers, M. [Rosetta Science Operations Centre, ESA, Madrid, Spain]
Lis, D. C. [California Institute of Technology, Pasadena, USA]
Manfroid, Jean mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO)]
Rengel, M. [> >]
Swinyard, B. [> >]
Szutowicz, S. [> >]
de Val-Borro, M. [> >]
Vandenbussche, B. [> >]
2011
EPSC Abstracts 2011
436, pp. 1-2
No
International
EPSC-DPS Joint Meeting 2011
2-7 October 2011
Nantes
France
[en] We present here a search for the OH rotational lines in these spectral scans. In comet 103P/Hartley 2, the 2 3/2(5/2)-2 3/2(3/2) lines at 119 μm and 2 1/2(5/2)-2 1/2(3/2) lines at 99 μm are detected. Other lines may be marginally present. Two mechanisms concur to the emission of the OH rotational lines: fluorescence due to solar excitation of the electronic states of OH [8] and prompt emission following the photodissociation of water, which produces the OH radical in electronic, vibrational and rotational excited states [9, 10]. We will compare the observed line intensities with those expected from these mechanisms, using the comet water productions determined from Herschel [6, 7], in order to better constrain the excitation of cometary OH.
Researchers
http://hdl.handle.net/2268/107050
http://adsabs.harvard.edu/abs/2011epsc.conf..436C

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