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 |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Preusker_Global_meter_level_67P_model.pdf | PDF editoriale | 7.83 MB | Adobe PDF | View/Open |
Page view(s)
5
checked on Jan 17, 2021
Download(s)
1
checked on Jan 17, 2021
Google ScholarTM
Check
Altmetric
Items in DSpace are published in Open Access, unless otherwise indicated.