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  • Oklay, N.German Aerosp Ctr DLR, Inst Planetary Res, Rutherfordstr 2, D-12489 Berlin, Germany (author)

Long-term survival of surface water ice on comet 67P

  • Article/chapterEnglish2017

Publisher, publication year, extent ...

  • 2017-09-11
  • Oxford University Press (OUP),2017
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:uu-376843
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-376843URI
  • https://doi.org/10.1093/mnras/stx2298DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Numerous water-ice-rich deposits surviving more than several months on comet 67P/Churyumov-Gerasimenko were observed during the Rosetta mission. We announce the first-time detection of water-ice features surviving up to 2 yr since their first observation via OSIRIS (Optical, Spectroscopic, and Infrared Remote Imaging System) NAC (narrow angle camera). Their existence on the nucleus of comet 67P at the arrival of the Rosetta spacecraft suggests that they were exposed to the surface during the comet's previous orbit. We investigated the temporal variation of large water-ice patches to understand the long-term sustainability of water ice on cometary nuclei on time-scales of months and years. Large clusters are stable over typical periods of 0.5 yr and reduce their size significantly around the comet's perihelion passage, while small exposures disappear. We characterized the temporal variation of their multispectral signatures. In large clusters, dust jets were detected, whereas in large isolated ones no associated activity was detected. Our thermal analysis shows that the long-term sustainability of water-ice-rich features can be explained by the scarce energy input available at their locations over the first half year. However, the situation reverses for the period lasting several months around perihelion passage. Our two end-member mixing analysis estimates a pure water-ice equivalent thickness up to 15 cm within one isolated patch, and up to 2 m for the one still observable through the end of the mission. Our spectral modelling estimates up to 48 per cent water-ice content for one of the large isolated feature, and up to 25 per cent water ice on the large boulders located within clusters.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Mottola, S.German Aerosp Ctr DLR, Inst Planetary Res, Rutherfordstr 2, D-12489 Berlin, Germany (author)
  • Vincent, J. -B (author)
  • Pajola, M.NASA, Ames Res Ctr, Moffett Field, CA 94035 USA (author)
  • Fornasier, S.Sorbonne Univ, UPMC Univ Paris 06, Sorbonne Paris Cite, Univ Paris Diderot,PSL Res Univ,Observ Paris,LESI, 5 Pl J Janssen, F-92195 Meudon, France (author)
  • Hviid, S. F.German Aerosp Ctr DLR, Inst Planetary Res, Rutherfordstr 2, D-12489 Berlin, Germany (author)
  • Kappel, D.German Aerosp Ctr DLR, Inst Planetary Res, Rutherfordstr 2, D-12489 Berlin, Germany (author)
  • Kuehrt, E.German Aerosp Ctr DLR, Inst Planetary Res, Rutherfordstr 2, D-12489 Berlin, Germany (author)
  • Keller, H. U.TU Braunschweig, Inst Geophys & Extraterrestrial Phys, D-38106 Braunschweig, Germany (author)
  • Barucci, M. A.Sorbonne Univ, UPMC Univ Paris 06, Sorbonne Paris Cite, Univ Paris Diderot,PSL Res Univ,Observ Paris,LESI, 5 Pl J Janssen, F-92195 Meudon, France (author)
  • Feller, C.Sorbonne Univ, UPMC Univ Paris 06, Sorbonne Paris Cite, Univ Paris Diderot,PSL Res Univ,Observ Paris,LESI, 5 Pl J Janssen, F-92195 Meudon, France (author)
  • Preusker, F.German Aerosp Ctr DLR, Inst Planetary Res, Rutherfordstr 2, D-12489 Berlin, Germany (author)
  • Scholten, F.German Aerosp Ctr DLR, Inst Planetary Res, Rutherfordstr 2, D-12489 Berlin, Germany (author)
  • Hall, I.Max Planck Inst Sonnensyst Forschung, Justus von Liebig Weg 3, D-37077 Gottingen, Germany (author)
  • Sierks, H.Max Planck Inst Sonnensyst Forschung, Justus von Liebig Weg 3, D-37077 Gottingen, Germany (author)
  • Barbieri, C.Univ Padua, Dipartimento Fis & Astron Galileo Galilei, Vic Osservatorio 3, I-35122 Padua, Italy (author)
  • Lamy, P. L.CNRS, Lab Astrophys Marseille, UMR 7326, 38 Rue Frederic Joliot Curie, F-13388 Marseille 13, France;Aix Marseille Univ, 38 Rue Frederic Joliot Curie, F-13388 Marseille 13, France (author)
  • Rodrigo, R.ESAC, ESA, CSIC, Ctr Astrobiol,INTA, POB 78, E-28691 Madrid, Spain;Int Space Sci Inst, Hallerstr 6, CH-3012 Bern, Switzerland (author)
  • Koschny, D.European Space Agcy, Res & Sci Support Dept, NL-2201 Noordwijk, Netherlands (author)
  • Rickman, HansUppsala universitet,Observationell astrofysik,PAS Space Res Ctr, Bartycka 18A, PL-00716 Warsaw, Poland(Swepub:uu)hansrick (author)
  • A'Hearn, M. F.Univ Maryland, Dept Astron, College Pk, MD 20742 USA (author)
  • Bertaux, J. -L (author)
  • Bertini, I.Univ Padua, Ctr Studies & Act Space CISAS G Colombo, Via Venezia 15, I-35131 Padua, Italy (author)
  • Bodewits, D.Univ Maryland, Dept Astron, College Pk, MD 20742 USA (author)
  • Cremonese, G.INAF, Osservatorio Astron Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy (author)
  • Da Deppo, V.CNR, IFN UOS Padova LUXOR, Via Trasea 7, I-35131 Padua, Italy (author)
  • Davidsson, B. J. R.NASA, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA (author)
  • Debei, S.Univ Padua, Dept Ind Engn, Via Venezia 1, I-35131 Padua, Italy (author)
  • De Cecco, M.Univ Trento, Via Sommarive 9, I-38123 Trento, Italy (author)
  • Deller, J.Max Planck Inst Sonnensyst Forschung, Justus von Liebig Weg 3, D-37077 Gottingen, Germany (author)
  • Deshapriya, J. D. P.Sorbonne Univ, UPMC Univ Paris 06, Sorbonne Paris Cite, Univ Paris Diderot,PSL Res Univ,Observ Paris,LESI, 5 Pl J Janssen, F-92195 Meudon, France (author)
  • Fulle, M.INAF, Osservatorio Astron Trieste, Via Tiepolo 11, I-34143 Trieste, Italy (author)
  • Gicquel, A.NASA, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA (author)
  • Groussin, O.Aix Marseille Univ, CNRS, LAM, UMR 7326, F-13388 Marseille, France (author)
  • Gutierrez, P. J.CSIC, Inst Astrofis Andalucia, E-18008 Granada, Spain (author)
  • Guettler, C.Max Planck Inst Sonnensyst Forschung, Justus von Liebig Weg 3, D-37077 Gottingen, Germany (author)
  • Hasselmann, P. H.Sorbonne Univ, UPMC Univ Paris 06, Sorbonne Paris Cite, Univ Paris Diderot,PSL Res Univ,Observ Paris,LESI, 5 Pl J Janssen, F-92195 Meudon, France (author)
  • Hofmann, M.Max Planck Inst Sonnensyst Forschung, Justus von Liebig Weg 3, D-37077 Gottingen, Germany (author)
  • Ip, W. -H (author)
  • Jorda, L.Aix Marseille Univ, CNRS, LAM, UMR 7326, F-13388 Marseille, France (author)
  • Knollenberg, J.German Aerosp Ctr DLR, Inst Planetary Res, Rutherfordstr 2, D-12489 Berlin, Germany (author)
  • Kovacs, G.Max Planck Inst Sonnensyst Forschung, Justus von Liebig Weg 3, D-37077 Gottingen, Germany (author)
  • Kramm, J. -R (author)
  • Kuppers, M.ESAC, ESA, POB 78, E-28691 Villanueva De La Canada, Spain (author)
  • Lara, L. M.CSIC, Inst Astrofis Andalucia, E-18008 Granada, Spain (author)
  • Lazzarin, M.Univ Padua, Dipartimento Fis & Astron Galileo Galilei, Vic Osservatorio 3, I-35122 Padua, Italy (author)
  • Lin, Z. -Y (author)
  • Lopez Moreno, J. J.CSIC, Inst Astrofis Andalucia, E-18008 Granada, Spain (author)
  • Lucchetti, A.INAF, Osservatorio Astron Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy (author)
  • Marzari, F.Univ Padua, Dipartimento Fis & Astron Galileo Galilei, Vic Osservatorio 3, I-35122 Padua, Italy (author)
  • Masoumzadeh, N.Max Planck Inst Sonnensyst Forschung, Justus von Liebig Weg 3, D-37077 Gottingen, Germany (author)
  • Naletto, G.Univ Padua, Ctr Studies & Act Space CISAS G Colombo, Via Venezia 15, I-35131 Padua, Italy;CNR, IFN UOS Padova LUXOR, Via Trasea 7, I-35131 Padua, Italy;Univ Padua, Dept Informat Engn, Gradenigo 6-B, I-35131 Padua, Italy (author)
  • Pommerol, A.Univ Bern, Phys Inst, Sidlerstr 5, CH-3012 Bern, Switzerland (author)
  • Shi, X.Max Planck Inst Sonnensyst Forschung, Justus von Liebig Weg 3, D-37077 Gottingen, Germany (author)
  • Thomas, N.Univ Bern, Phys Inst, Sidlerstr 5, CH-3012 Bern, Switzerland (author)
  • Tubiana, C.Max Planck Inst Sonnensyst Forschung, Justus von Liebig Weg 3, D-37077 Gottingen, Germany (author)
  • German Aerosp Ctr DLR, Inst Planetary Res, Rutherfordstr 2, D-12489 Berlin, GermanyNASA, Ames Res Ctr, Moffett Field, CA 94035 USA (creator_code:org_t)

Related titles

  • In:Monthly notices of the Royal Astronomical Society: Oxford University Press (OUP)469, s. S582-S5970035-87111365-2966

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