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Search: onr:"swepub:oai:DiVA.org:uu-270456" > Keller H. U. > Geomorphology of th...

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Geomorphology of the Imhotep region on comet 67P/Churyumov-Gerasimenko from OSIRIS observations

Auger, A. -T (author)
Groussin, O. (author)
Aix Marseille Univ, CNRS, UMR 7326, LAM, F-13388 Marseille, France.
Jorda, L. (author)
Aix Marseille Univ, CNRS, UMR 7326, LAM, F-13388 Marseille, France.
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Bouley, S. (author)
Univ Paris 11, Lab GEOPS, Geosci Paris Sud, F-91405 Orsay, France.;Inst Mecan Celeste & Calcul Ephemerides, UMR 8028, F-75014 Paris, France.
Gaskell, R. (author)
Planetary Sci Inst, Tucson, AZ 85719 USA.
Lamy, P. L. (author)
Aix Marseille Univ, CNRS, UMR 7326, LAM, F-13388 Marseille, France.
Capanna, C. (author)
Aix Marseille Univ, CNRS, UMR 7326, LAM, F-13388 Marseille, France.
Thomas, N. (author)
Univ Bern, Inst Phys, CH-3012 Bern, Switzerland.
Pommerol, A. (author)
Univ Bern, Inst Phys, CH-3012 Bern, Switzerland.
Sierks, H. (author)
Max Planck Inst Sonnensyst Forsch, D-37077 Gottingen, Germany.
Barbieri, C. (author)
Univ Padua, Dept Phys & Astron, I-35122 Padua, Italy.
Rodrigo, R. (author)
Ctr Astrobiol INTA CSIC, Madrid 28691, Spain.;Int Space Sci Inst, CH-3012 Bern, Switzerland.
Koschny, D. (author)
European Space Agcy, Sci Support Off, NL-2201 Noordwijk, Netherlands.
Rickman, Hans (author)
Uppsala universitet,Teoretisk astrofysik
Keller, H. U. (author)
Inst Geophys & Extraterr Phys, D-38106 Braunschweig, Germany.
Agarwal, J. (author)
Max Planck Inst Sonnensyst Forsch, D-37077 Gottingen, Germany.
A'Hearn, M. F. (author)
Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
Barucci, M. A. (author)
Univ Paris Diderot, Univ Paris 06, Observ Paris, LESIA,CNRS, F-92195 Meudon, France.
Bertaux, J. -L (author)
Bertini, I. (author)
Univ Padua, CISAS, I-35100 Padua, Italy.
Cremonese, G. (author)
Univ Padua, Dept Mech Engn, I-35131 Padua, Italy.
Da Deppo, V. (author)
CNR IFN UOS Padova LUXOR, I-35131 Padua, Italy.
Davidsson, Björn (author)
Uppsala universitet,Teoretisk astrofysik
Debei, S. (author)
Univ Padua, Dept Mech Engn, I-35131 Padua, Italy.
De Cecco, M. (author)
Univ Trento, UNITN, I-38100 Trento, Italy.
El-Maarry, M. R. (author)
Univ Bern, Inst Phys, CH-3012 Bern, Switzerland.
Fornasier, S. (author)
Univ Paris Diderot, Univ Paris 06, Observ Paris, LESIA,CNRS, F-92195 Meudon, France.
Fulle, M. (author)
Osserv Astron Trieste, INAF, I-34143 Trieste, Italy.
Gutierrez, P. J. (author)
CSIC, Inst Astrofis Andalucia, E-18008 Granada, Spain.
Guettler, C. (author)
Max Planck Inst Sonnensyst Forsch, D-37077 Gottingen, Germany.
Hviid, S. (author)
DLR, Inst Planetary Res, D-12489 Berlin, Germany.
Ip, W. -H (author)
Knollenberg, J. (author)
DLR, Inst Planetary Res, D-12489 Berlin, Germany.
Kramm, J. -R (author)
Kuehrt, E. (author)
DLR, Inst Planetary Res, D-12489 Berlin, Germany.
Kueppers, M. (author)
European Space Astron Ctr ESA, Operat Dept, Madrid 28691, Spain.
La Forgia, F. (author)
Univ Padua, Dept Phys & Astron, I-35122 Padua, Italy.
Lara, L. M. (author)
CSIC, Inst Astrofis Andalucia, E-18008 Granada, Spain.
Lazzarin, M. (author)
Univ Padua, Dept Phys & Astron, I-35122 Padua, Italy.
Lopez Moreno, J. J. (author)
CSIC, Inst Astrofis Andalucia, E-18008 Granada, Spain.
Marchi, S. (author)
Southwest Res Inst, Boulder, CO 80302 USA.
Marzari, F. (author)
Univ Padua, Dept Phys & Astron, I-35122 Padua, Italy.
Massironi, M. (author)
Osserv Astron Padova, INAF, I-35121 Padua, Italy.;Univ Padua, Ctr Ateneo Studi & Attivita Spaziali Giuseppe Col, I-35131 Padua, Italy.
Michalik, H. (author)
Tech Univ Carolo Wilhelmina Braunschweig, Inst Datentech & Kommunikat Netze, D-38106 Braunschweig, Germany.
Naletto, G. (author)
Univ Padua, CISAS, I-35100 Padua, Italy.;CNR IFN UOS Padova LUXOR, I-35131 Padua, Italy.;Univ Padua, Dept Informat Engn, I-35131 Padua, Italy.
Oklay, N. (author)
Max Planck Inst Sonnensyst Forsch, D-37077 Gottingen, Germany.
Pajola, M. (author)
Univ Padua, Ctr Ateneo Studi & Attivita Spaziali Giuseppe Col, I-35131 Padua, Italy.
Sabau, L. (author)
Inst Nacl Tecn Aeroesp, Madrid 28850, Spain.
Tubiana, C. (author)
Max Planck Inst Sonnensyst Forsch, D-37077 Gottingen, Germany.
Vincent, J. -B (author)
Wenzel, K. -P (author)
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Aix Marseille Univ, CNRS, UMR 7326, LAM, F-13388 Marseille, France Univ Paris 11, Lab GEOPS, Geosci Paris Sud, F-91405 Orsay, France.;Inst Mecan Celeste & Calcul Ephemerides, UMR 8028, F-75014 Paris, France. (creator_code:org_t)
2015-10-30
2015
English.
In: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 583
Related links:
https://www.aanda.or...
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https://urn.kb.se/re...
https://doi.org/10.1...
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Context. Since August 2014, the OSIRIS Narrow Angle Camera (NAC) onboard the Rosetta spacecraft has acquired high spatial resolution images of the nucleus of comet 67P/Churyumov-Gerasimenko, down to the decimeter scale. This paper focuses on the Imhotep region, located on the largest lobe of the nucleus, near the equator. Aims. We map, inventory, and describe the geomorphology of the Imhotep region. We propose and discuss some processes to explain the formation and ongoing evolution of this region. Methods. We used OSIRIS NAC images, gravitational heights and slopes, and digital terrain models to map and measure the morphologies of Imhotep. Results. The Imhotep region presents a wide variety of terrains and morphologies: smooth and rocky terrains, bright areas, linear features, roundish features, and boulders. Gravity processes such as mass wasting and collapse play a significant role in the geomorphological evolution of this region. Cometary processes initiate erosion and are responsible for the formation of degassing conduits that are revealed by elevated roundish features on the surface. We also propose a scenario for the formation and evolution of the Imhotep region; this implies the presence of large primordial voids inside the nucleus, resulting from its formation process.

Subject headings

NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

Keyword

comets: individual: 67P/Churyumov-Gerasimenko
methods: data analysis

Publication and Content Type

ref (subject category)
art (subject category)

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