On the nucleus structure and activity of comet 67P/Churyumov-Gerasimenko

Sierks, H.; Barbieri, C.; Lamy, P.; Rodrigo, R.; Koschny, D.; Rickman, H.; U. Keller, H.; Agarwal, Jessica; F. A’Hearn, Michael; Angrilli, F.; Auger, Anne-Therese; Antonella Barucci, Maria; Bertaux, J.–L.; Bertini, Ivano; Besse, S.; Bodewits, Dennis; Capanna, Claire; Cremonese, G.; Da Deppo, Vania; Davidsson, B.; Debei, S.; De Cecco, M.; Ferri, F.; Fornasier, S.; Fulle, M.; W. Gaskell, R.; Giacomini, Lorenza; Groussin, O.; Gutiérrez–Marques, P.; J. Gutiérrez, P.; Güttler, C.; M. Hoekzema, N.; F. Hviid, S.; Ip, W.-H.; Jordá, L.; Knollenberg, J.; Kovács, Gábor; Kramm, J.‐R.; Kührt, E.; Küppers, M.; La Forgia, Fiorangela; M. Lara, L.; Lazzarin, M.; Leyrat, C.; J. López‐Moreno, J.; Magrin, Sara; Marchi, S.; Marzari, F.; Massironi, Matteo; Michalik, H.; Moissl, Richard; Mottola, S.; Naletto, G.; Oklay, N.; Pajola, M.; Pertile, Marco; Preusker, Frank; Sabau, L.; Scholten, F.; Snodgrass, C.; Thomas, Nicolas; Tubiana, C.; Vincent, Jean-Baptiste; Wenzel, Klaus-Peter; Zaccariotto, Mirco; Pätzold, M.

doi:10.1126/science.aaa1044

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On the nucleus structure and activity of comet 67P/Churyumov-Gerasimenko

Published in Science • Jan 22, 2015

Authors:

H. Sierks

C. Barbieri

P. Lamy

Abstract

Images from the OSIRIS scientific imaging system onboard Rosetta show that the nucleus of 67P/Churyumov-Gerasimenko consists of two lobes connected by a short neck. The nucleus has a bulk density less than half that of water. Activity at a distance from the Sun of >3 astronomical units is predominan...

Subject

Nucleus

Sublimation (psychology)

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