Reference : A study of the distant activity of comet C/2006 W3 (Christensen) with Herschel and gr...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/80843
A study of the distant activity of comet C/2006 W3 (Christensen) with Herschel and ground-based radio telescopes
English
Bockelée-Morvan, D. [LESIA, Observatoire de Paris, 5 place Jules Janssen, 92195 Meudon, France]
Hartogh, P. [Max-Planck-Institut für Sonnensystemforschung, Katlenburg-Lindau, Germany]
Crovisier, J. [LESIA, Observatoire de Paris, 5 place Jules Janssen, 92195 Meudon, France]
Vandenbussche, B. [Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Belgium]
Swinyard, B. M. [Rutherford Appleton Laboratory, Oxfordshire, UK]
Biver, N. [LESIA, Observatoire de Paris, 5 place Jules Janssen, 92195 Meudon, France]
Lis, D. C. [California Institute of Technology, Pasadena, USA]
Jarchow, C. [Max-Planck-Institut für Sonnensystemforschung, Katlenburg-Lindau, Germany]
Moreno, R. [LESIA, Observatoire de Paris, 5 place Jules Janssen, 92195 Meudon, France)a, AJ(F.R.S.-FNRS, Institut d'Astrophysique et de Géophysique, Liège, Belgium]
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. [Instituto de Astrofísica de Andalucía (CSIC), Granada, Spain]
Lara, L. M. [LESIA, Observatoire de Paris, 5 place Jules Janssen, 92195 Meudon, France]
Lellouch, E. [F.R.S.-FNRS, Institut d'Astrophysique et de Géophysique, Liège, Belgium]
Manfroid, Jean mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO) >]
de Val-Borro, M. [Space Research Centre, Polish Academy of Science, Warszawa, Poland]
Szutowicz, S. [Space Research Centre, Polish Academy of Science, Warszawa, Poland]
Banaszkiewicz, M. [Deutsches Zentrum für Luft- und Raumfahrt (DLR), Bonn, Germany]
Bensch, F. [Space Research Centre, Polish Academy of Science, Warszawa, Poland]
Blecka, M. I. [California Institute of Technology, Pasadena, USA]
Emprechtinger, M. [LESIA, Observatoire de Paris, 5 place Jules Janssen, 92195 Meudon, France]
Encrenaz, T. [Blue Sky Spectroscopy Inc., Lethbridge, Alberta, Canada]
Fulton, T. [Herschel Science Centre, ESAC, Madrid, Spain]
Kidger, M. [Max-Planck-Institut für Sonnensystemforschung, Katlenburg-Lindau, Germany]
Rengel, M. [Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Belgium]
Waelkens, C. [University of Michigan, Ann Arbor, USA]
Bergin, E. [California Institute of Technology, Pasadena, USA]
Blake, G. A. [Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Belgium]
Blommaert, J A D L [CAB. INTA-CSIC Crta Torrejon a Ajalvir km 4. 28850 Torrejonde Ardoz, Madrid, Spain]
Cernicharo, J. [Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Belgium]
Decin, L. [LERMA, Observatoire de Paris, and Univ. Pierre et Marie Curie, Paris, France]
Encrenaz, P. [SRON Netherlands Institute for Space Research, PO Box 800, Groningen,The Netherlands ; Leiden Observatory, University of Leiden, The Netherlands; Joint ALMA Observatory, Santiago, Chile]
de Graauw, T. [Rutherford Appleton Laboratory, Oxfordshire, UK]
Leeks, S. [Max-Planck-Institut für Sonnensystemforschung, Katlenburg-Lindau, Germany]
Medvedev, A. S. [University of Lethbridge, Canada]
Naylor, D. [University of Cologne, Germany]
Schieder, R. [University of Bern, Switzerland]
Thomas, N. [> >]
1-Jul-2010
Astronomy and Astrophysics
518
Letters
149, pp. 1-6
Yes
International
[en] comets: individual: C/2006 W3 (Christensen) ; techniques: photometric ; radio lines: planetary systems ; radio continuum: planetary systems ; comets: general
[en] Comet C/2006 W3 (Christensen) was observed in November 2009 at 3.3 AU from the Sun with Herschel.The PACS instrument acquired images of the dust coma in 70-μm and 160-μm filters and spectra covering several H[SUB]2[/SUB]O rotational lines. Spectra in the range 450-1550 GHz were acquired with SPIRE. The comet emission continuum from 70 to 672 μm was measured, but no lines were detected. The spectral energy distribution indicates thermal emission from large particles and provides a measure of the size distribution index and dust production rate. The upper limit to the water production rate is compared to the production rates of other species (CO, CH[SUB]3[/SUB]OH, HCN, H[SUB]2[/SUB]S, OH) measured with the IRAM 30-m and Nançay telescopes. The coma is found to be strongly enriched in species more volatile than water, in comparison to comets observed closer to the Sun. The CO to H[SUB]2[/SUB]O production rate ratio exceeds 220%. The dust-to-gas production rate ratio is on the order of 1. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA.Figures 2, 5, 6 are only available in electronic form at <A href="http://www.aanda.org">http://www.aanda.org</A>
Researchers
http://hdl.handle.net/2268/80843
10.1051/0004-6361/201014655
http://adsabs.harvard.edu/abs/2010A%26A...518L.149B
http://de.arxiv.org/abs/1005.1592

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