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Cometary Nuclei – from Giotto to Rosetta

Keller, Horst Uwe and Kührt, Ekkehard (2020) Cometary Nuclei – from Giotto to Rosetta. Space Science Reviews, 216, p. 14. Springer. DOI: 10.1007/s11214-020-0634-6 ISSN 0038-6308

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Official URL: https://link.springer.com/article/10.1007/s11214-020-0634-6

Abstract

We will briefly recapitulate the beginning of modern cometary physic. Then we will assess the results of the cometary flyby missions previous to ESA’s Rosetta rendezvous with comet 67P/Churyumov-Gerasimenko. Emphasis is given to the physical properties of cometary nuclei. We will relate the results of the Rosetta mission to those of the flybys. A major conclusion is that the visited cometary nuclei seem to be alike but represent different stages of evolution. Coma composition and appearance are not only controlled by the composition of the nucleus but also strongly influenced by the shape and rotation axis orientation of the nucleus and resulting seasons that generate varying surface coverage by back fall material. Rosetta showed that the coma composition is not only varying spatially but also strongly with time during the perihelion passage. Hence past interpretations of cometary coma observations have to be re-considered. Finally, we will try to assess the impact of the cornerstone mission leading to a critical evaluation of the mission results. Lessons learned from Rosetta are discussed; major progress and open points in cometary research are reviewed.

Item URL in elib:https://elib.dlr.de/131946/
Document Type:Article
Title:Cometary Nuclei – from Giotto to Rosetta
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Keller, Horst UweInstitute of Planetary Research, DLR, Rutherfordstrasse 2, 12489 Berlin, Germany, keller (at) mps.mpg.deUNSPECIFIED
Kührt, EkkehardEkkehard.Kuehrt (at) dlr.deUNSPECIFIED
Date:2020
Journal or Publication Title:Space Science Reviews
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:216
DOI :10.1007/s11214-020-0634-6
Page Range:p. 14
Publisher:Springer
ISSN:0038-6308
Status:Published
Keywords:comets, space missions, Rosetta, 67P
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Projekt ROSETTA Instrumente
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Asteroids and Comets
Deposited By: Kührt, Dr.rer.nat. Ekkehard
Deposited On:27 Feb 2020 13:11
Last Modified:19 May 2020 14:35

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