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  On Steep Cliffs and Fountains of Dust: The Rosetta Comet 67P/Churyumov-Gerasimenko

Sierks, H. (2018). On Steep Cliffs and Fountains of Dust: The Rosetta Comet 67P/Churyumov-Gerasimenko. In C.-M. Ko, C.-K. Chang, & P.-C. Yu (Eds.), Astronomical Society of the Pacific Conference Series; Vol 513: Serendipities in the Solar System and Beyond (pp. 65-71). Astronomical Society of the Pacific.

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Datensatz-Permalink: https://hdl.handle.net/21.11116/0000-0003-C55F-5 Versions-Permalink: https://hdl.handle.net/21.11116/0000-0003-C560-2
Genre: Konferenzbeitrag

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 Urheber:
Sierks, Holger1, Autor           
Affiliations:
1Department Planets and Comets, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832288              

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Schlagwörter: -
 Zusammenfassung: Comet 67P/Churyumov-Gerasimenko shows remarkable surface features as well as an unusual bulk shape and high porosity, with early activity seen at 4.2 AU heliocentric distance in approach of the Rosetta spacecraft. Observations from the OSIRIS scientific imaging system onboard Rosetta show that the nucleus of 67P consists of two lobes which are connected by a short neck. The nucleus has a bulk density less than half that of water. The shape raises the question of whether the two lobes represent a contact binary formed 4.5 Gyr ago or rather a single body in which a gap has evolved via erosion. The surface morphology suggests the loss of larger volumes of material by mass-loss events, sublimation forming overhangs, or cliff collapses with subsequent release of volatiles.

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Sprache(n): eng - English
 Datum: 2018
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: ISBN: 978-1-58381-910-4
 Art des Abschluß: -

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Titel: Astronomical Society of the Pacific Conference Series; Vol 513: Serendipities in the Solar System and Beyond
Genre der Quelle: Konferenzband
 Urheber:
Ko, Chung-Ming, Herausgeber
Chang, Cang-Kao, Herausgeber
Yu, Po-Chieh, Herausgeber
Affiliations:
-
Ort, Verlag, Ausgabe: Astronomical Society of the Pacific
Seiten: - Band / Heft: 513 Artikelnummer: - Start- / Endseite: 65 - 71 Identifikator: ISBN: 978-1-58381-910-4