Reference : A Multi-wavelength study with the ESO VLT of comet 103P/Hartley2 at the time of the E...
Scientific congresses and symposiums : Paper published in a journal
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/107046
A Multi-wavelength study with the ESO VLT of comet 103P/Hartley2 at the time of the EPOXI encounter
English
Jehin, Emmanuel mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image]
Hutsemekers, Damien mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)]
Manfroid, Jean mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO)]
Decock, Alice mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image]
Weiler, M. [Department of Astronomy and Meteorology, University of Barcelona, Spain]
Kawakita, H. [Department of Physics, Kyoto Sangyo University, Japan]
Shinnaka, Y. [Department of Physics, Kyoto Sangyo University, Japan]
Hashimoto, M. [Department of Physics, Kyoto Sangyo University, Japan]
Bockelée-Morvan, D. [LESIA, Observatoire de Paris, Meudon, France]
Biver, N. [> >]
Crovisier, J. [> >]
Hartog, P. [> >]
2011
EPSC Abstracts 2011
1463, pp. 1-2
No
International
EPSC-DPS Joint Meeting 2011
2-7 October 2011
Nantes
France
[en] We report on simultaneous optical and infrared spectroscopic observations of the Jupiter Family comet 103P/Hartley2 performed with the UT-1 and UT-2 8-m Unit Telescopes of the ESO Very Large Telescope (VLT). These coordinated observations were carried on during several nights (2010 Nov. 5, 9, 10 and 11 UT) around the NASA EPOXI encounter with the comet on Nov. 4 [1] and in support to the key program « Water and related chemistry in the Solar System » (HssO) [2] of the Herschel Space Observatory. From high resolution optical spectroscopy of the CN (0,0) 388 nm band using UVES at UT2 we determined the isotopic ratios 12C/13C = 95 ± 15 and 14N/15N = 155 ± 25 in the CN radical. From the NH2 (0,9,0) and the H2O+ bands around 600 nm, we derived a nuclear spin temperature of 33 ± 3 K for NH3 and 36 +7/-6 K for H2O. These values are similar to those found in Oort- Cloud and Jupiter Family comets. From lowresolution long-slit spectroscopy with FORS2 at UT1 we will determine the CN, C2 and C3 spatial profiles and their production rates. From the high-resolution near-IR spectra that we collected with CRIRES at UT1 we will measure simultaneously the production rates and mixing ratios of the parent molecules H2O, HCN, C2H6, and CH3OH that are well detected in our spectra and we will study the link to the daughter species.
Researchers
http://hdl.handle.net/2268/107046
http://adsabs.harvard.edu/abs/2011epsc.conf.1463J

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