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  1. OA@INAF
  2. PRODOTTI RICERCA INAF
  3. 1 CONTRIBUTI IN RIVISTE (Journal articles)
  4. 1.01 Articoli in rivista
Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/27999
Title: The global meter-level shape model of comet 67P/Churyumov-Gerasimenko
Authors: Preusker, F.
Scholten, F.
Matz, K. -D.
Roatsch, T.
Hviid, S. F.
Mottola, S.
Knollenberg, J.
Kührt, E.
PAJOLA, MAURIZIO 
Oklay, N.
Vincent, J. -B.
Davidsson, B.
A'Hearn, M. F.
Agarwal, J.
Barbieri, C.
Barucci, M. A.
Bertaux, J. -L.
Bertini, I.
CREMONESE, Gabriele 
Da Deppo, V.
Debei, S.
De Cecco, M.
Fornasier, S.
FULLE, Marco 
Groussin, O.
Gutiérrez, P. J.
Güttler, C.
Ip, W. -H.
Jorda, L.
Keller, H. U.
Koschny, D.
Kramm, J. R.
Küppers, M.
Lamy, P.
Lara, L. M.
Lazzarin, M.
Lopez Moreno, J. J.
Marzari, F.
Massironi, M.
Naletto, G.
Rickman, H.
Rodrigo, R.
Sierks, H.
Thomas, N.
Tubiana, C.
Issue Date: 2017
Journal: ASTRONOMY & ASTROPHYSICS 
Number: 607
First Page: L1
Abstract: We performed a stereo-photogrammetric (SPG) analysis of more than 1500 Rosetta/OSIRIS NAC images of comet 67P/Churyumov-Gerasimenko (67P). The images with pixel scales in the range 0.2-3.0 m/pixel were acquired between August 2014 and February 2016. We finally derived a global high-resolution 3D description of 67P's surface, the SPG SHAP7 shape model. It consists of about 44 million facets (1-1.5 m horizontal sampling) and a typical vertical accuracy at the decimeter scale. Although some images were taken after perihelion, the SPG SHAP7 shape model can be considered a pre-periheliondescription and replaces the previous SPG SHAP4S shape model. From the new shape model, some measures for 67P with very low 3σ uncertainties can be retrieved: 18.56 km<SUP>3</SUP> ± 0.02 km<SUP>3</SUP> for the volume and 537.8 kg/m<SUP>3</SUP> ± 0.7 kg/m<SUP>3</SUP> for the mean density assuming a mass value of 9.982 × 10<SUP>12</SUP> kg.
URI: http://hdl.handle.net/20.500.12386/27999
URL: https://www.aanda.org/articles/aa/abs/2017/11/aa31798-17/aa31798-17.html
ISSN: 0004-6361
DOI: 10.1051/0004-6361/201731798
Bibcode ADS: 2017A&A...607L...1P
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

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