Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/23145
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Vincent, Jean-Baptiste | en_US |
dc.contributor.author | Bodewits, Dennis | en_US |
dc.contributor.author | Besse, Sébastien | en_US |
dc.contributor.author | Sierks, Holger | en_US |
dc.contributor.author | Barbieri, Cesare | en_US |
dc.contributor.author | Lamy, Philippe | en_US |
dc.contributor.author | Rodrigo, Rafael | en_US |
dc.contributor.author | Koschny, Detlef | en_US |
dc.contributor.author | Rickman, Hans | en_US |
dc.contributor.author | Keller, Horst Uwe | en_US |
dc.contributor.author | Agarwal, Jessica | en_US |
dc.contributor.author | A'Hearn, Michael F. | en_US |
dc.contributor.author | Auger, Anne-Thérèse | en_US |
dc.contributor.author | Barucci, M. Antonella | en_US |
dc.contributor.author | Bertaux, Jean-Loup | en_US |
dc.contributor.author | BERTINI, IVANO | en_US |
dc.contributor.author | Capanna, Claire | en_US |
dc.contributor.author | CREMONESE, Gabriele | en_US |
dc.contributor.author | Da Deppo, Vania | en_US |
dc.contributor.author | Davidsson, Björn | en_US |
dc.contributor.author | Debei, Stefano | en_US |
dc.contributor.author | de Cecco, Mariolino | en_US |
dc.contributor.author | El-Maarry, Mohamed Ramy | en_US |
dc.contributor.author | Ferri, Francesca | en_US |
dc.contributor.author | FORNASIER, SONIA | en_US |
dc.contributor.author | FULLE, Marco | en_US |
dc.contributor.author | Gaskell, Robert | en_US |
dc.contributor.author | GIACOMINI, LORENZA | en_US |
dc.contributor.author | Groussin, Olivier | en_US |
dc.contributor.author | Guilbert-Lepoutre, Aurélie | en_US |
dc.contributor.author | Gutierrez-Marques, P. | en_US |
dc.contributor.author | Gutiérrez, Pedro J. | en_US |
dc.contributor.author | Güttler, Carsten | en_US |
dc.contributor.author | Hoekzema, Nick | en_US |
dc.contributor.author | Höfner, Sebastian | en_US |
dc.contributor.author | Hviid, Stubbe F. | en_US |
dc.contributor.author | Ip, Wing-Huen | en_US |
dc.contributor.author | Jorda, Laurent | en_US |
dc.contributor.author | Knollenberg, Jörg | en_US |
dc.contributor.author | Kovacs, Gabor | en_US |
dc.contributor.author | Kramm, Rainer | en_US |
dc.contributor.author | Kührt, Ekkehard | en_US |
dc.contributor.author | Küppers, Michael | en_US |
dc.contributor.author | La Forgia, Fiorangela | en_US |
dc.contributor.author | Lara, Luisa M. | en_US |
dc.contributor.author | Lazzarin, Monica | en_US |
dc.contributor.author | Lee, Vicky | en_US |
dc.contributor.author | Leyrat, Cédric | en_US |
dc.contributor.author | Lin, Zhong-Yi | en_US |
dc.contributor.author | Lopez Moreno, Josè J. | en_US |
dc.contributor.author | Lowry, Stephen | en_US |
dc.contributor.author | Magrin, Sara | en_US |
dc.contributor.author | Maquet, Lucie | en_US |
dc.contributor.author | Marchi, Simone | en_US |
dc.contributor.author | MARZARI, FRANCESCO | en_US |
dc.contributor.author | MASSIRONI, MATTEO | en_US |
dc.contributor.author | Michalik, Harald | en_US |
dc.contributor.author | Moissl, Richard | en_US |
dc.contributor.author | Mottola, Stefano | en_US |
dc.contributor.author | Naletto, Giampiero | en_US |
dc.contributor.author | Oklay, Nilda | en_US |
dc.contributor.author | PAJOLA, MAURIZIO | en_US |
dc.contributor.author | Preusker, Frank | en_US |
dc.contributor.author | Scholten, Frank | en_US |
dc.contributor.author | Thomas, Nicolas | en_US |
dc.contributor.author | Toth, Imre | en_US |
dc.contributor.author | TUBIANA, Cecilia | en_US |
dc.date.accessioned | 2020-03-05T18:43:47Z | - |
dc.date.available | 2020-03-05T18:43:47Z | - |
dc.date.issued | 2015 | en_US |
dc.identifier.issn | 0028-0836 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/23145 | - |
dc.description | OSIRIS was built by a consortium of the Max-Planck-Institut für Sonnensystemforschung, Katlenburg-Lindau, Germany, the CISAS, University of Padova, Italy, the Laboratoire d’Astrophysique de Marseille, France, the Instituto de Astrofísica de Andalucia, CSIC, Granada, Spain, the Research and Scientific Support Department of the European Space Agency, Noordwijk, The Netherlands, the Instituto Nacional de Técnica Aeroespacial, Madrid, Spain, the Universidad Politéchnica de Madrid, Spain, the Department of Physics and Astronomy of Uppsala University, Sweden, and the Institut für Datentechnik und Kommunikationsnetze der Technischen Universität Braunschweig, Germany. The support of the national funding agencies of Germany (DLR), France (CNES), Italy (ASI), Spain (MEC), Sweden (SNSB), and the ESA Technical Directorate is acknowledged. This work was also supported by NASA JPL contract 1267923 to the University of Maryland (M.F.A’H. and D.B.). M.F.A’H. is a Gauss Professor at the Akademie der Wissenschaften zu Göttingen and Max-Planck-Institut für Sonnensystemforschung (Germany). This research has made use of NASA’s Astrophysics Data System Bibliographic Services. We thank H. J. Melosh for reviews and criticism. | - |
dc.description.abstract | Pits have been observed on many cometary nuclei mapped by spacecraft. It has been argued that cometary pits are a signature of endogenic activity, rather than impact craters such as those on planetary and asteroid surfaces. Impact experiments and models cannot reproduce the shapes of most of the observed cometary pits, and the predicted collision rates imply that few of the pits are related to impacts. Alternative mechanisms like explosive activity have been suggested, but the driving process remains unknown. Here we report that pits on comet 67P/Churyumov-Gerasimenko are active, and probably created by a sinkhole process, possibly accompanied by outbursts. We argue that after formation, pits expand slowly in diameter, owing to sublimation-driven retreat of the walls. Therefore, pits characterize how eroded the surface is: a fresh cometary surface will have a ragged structure with many pits, while an evolved surface will look smoother. The size and spatial distribution of pits imply that large heterogeneities exist in the physical, structural or compositional properties of the first few hundred metres below the current nucleus surface. <P /> | en_US |
dc.language.iso | eng | en_US |
dc.title | Large heterogeneities in comet 67P as revealed by active pits from sinkhole collapse | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1038/nature14564 | en_US |
dc.identifier.scopus | 2-s2.0-84962345442 | en_US |
dc.identifier.isi | 000357169500031 | en_US |
dc.identifier.url | https://www.nature.com/articles/nature14564 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 523 | en_US |
dc.relation.issue | 7558 | en_US |
dc.relation.firstpage | 63 | en_US |
dc.relation.numberofpages | 16 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | USA | en_US |
dc.contributor.country | GBR | en_US |
dc.contributor.country | FRA | en_US |
dc.contributor.country | DEU | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | NATURE | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2015Natur.523...63V | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegherò il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | reserved | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.dept | O.A. Trieste | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.orcid | 0000-0001-9021-1140 | - |
crisitem.author.orcid | 0000-0001-8435-5287 | - |
crisitem.author.orcid | 0000-0002-3144-1277 | - |
crisitem.journal.journalissn | 0028-0836 | - |
crisitem.journal.ance | E116312 | - |
Appears in Collections: | 1.01 Articoli in rivista |
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File | Description | Size | Format | Existing users please |
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nature14564.pdf | [Administrators only] | 6.51 MB | Adobe PDF |
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