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Multidisciplinary analysis of the Hapi region located on Comet 67P/Churyumov–Gerasimenko

Pajola, M and Lee, J-C and Oklay, Nilda and Hviid, Stubbe and Penasa, L and Mottola, Stefano and Shi, X and Fornasier, S and Davidsson, B and Giacomini, L and Lucchetti, A and Massironi, M and Vincent, Jean-Baptiste and Bertini, I and Naletto, G and Ip, W H and Sierks, H and Lamy, P L and Rodrigo, R and Koschny, D and Keller, H U and Agarwal, J and Barucci, M A and Bertaux, J L and Bodewits, D and Cambianica, P and Cremonese, G and Da Deppo, V and Debei, S and De Cecco, M and Deller, J and El Maarry, M R and Feller, C and Ferrari, S and Fulle, M and Gutierrez, P J and Güttler, C and Lara, L M and La Forgia, F and Lazzarin, M and Lin, Z-Y and Lopez Moreno, J J and Marzari, F and Preusker, Frank and Scholten, Frank and Toth, I and Tubiana, C (2019) Multidisciplinary analysis of the Hapi region located on Comet 67P/Churyumov–Gerasimenko. Monthly Notices of the Royal Astronomical Society, 485 (2), pp. 2139-2154. Oxford University Press. DOI: 10.1093/mnras/stz446 ISSN 0035-8711

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Official URL: https://academic.oup.com/mnras/article/485/2/2139/5371141

Abstract

By using the Rosetta/OSIRIS-NAC data set taken in 2014 August, we focus on the neck region, called Hapi, located on 67P Churyumov–Gerasimenko’s Northern hemisphere. The gravitational potential and slopes of Hapi, coupled with the geological unit identification and the boulder size–frequency distributions, support the interpretation that both taluses and gravitational accumulation deposits observable on Hapi are the result of multiple cliff collapses that occurred at different times. By contrast, the fine-particle deposits observable in the central part of the study area are made of aggregates coming from the Southern hemisphere and deposited during each perihelion passage. Both the consolidated terrains on the western part of Hapi, as well as the centrally aligned ridge made of boulder-like features, suggest that Hapi is in structural continuity with the onion-like structure of the main lobe of 67P. Despite the dusty blanket observable on Hapi, its terrains are characterized by water-ice-rich components that, once repeatedly and rapidly illuminated, sublimate, hence resulting in the strong jet activity observed in 2014 August.

Item URL in elib:https://elib.dlr.de/131875/
Document Type:Article
Title:Multidisciplinary analysis of the Hapi region located on Comet 67P/Churyumov–Gerasimenko
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Pajola, MINAF Osservatorio Astronomico di Padova, Vic. Osservatorio 5, 35122 Padova, ItalyUNSPECIFIED
Lee, J-CDepartment of Earth Sciences, National Central University, 32054 Chung-Li, TaiwanUNSPECIFIED
Oklay, NildaNilda.OklayVincent (at) dlr.dehttps://orcid.org/0000-0002-4909-9692
Hviid, StubbeStubbe.Hviid (at) dlr.deUNSPECIFIED
Penasa, LCenter of Studies and Activities for Space, CISAS, `G. Colombo’, University of Padova, Via Venezia 15, 35131 Padova, ItalyUNSPECIFIED
Mottola, StefanoStefano.Mottola (at) dlr.deUNSPECIFIED
Shi, XMax-Planck-Institut für Sonnensystemforschung, Justus-von-Liebig-Weg 3, 37077 Göttingen, GermanyUNSPECIFIED
Fornasier, SLESIA, Observatoire de Paris, Université PSL, CNRS, Univ. Paris Diderot, Sorbonne Paris Cité, Sorbonne Université, 5 Place J. Janssen, 92195 Meudon Pricipal Cedex, FranceUNSPECIFIED
Davidsson, BJet Propulsion Laboratory, M/S 183-401, 4800 Oak Grove Drive, Pasadena, CA 91109, USAUNSPECIFIED
Giacomini, LINAF Istituto di Astrofisica e Planetologia Spaziali, Via del fosso del cavaliere 100, 00133 Roma, ItalyUNSPECIFIED
Lucchetti, AINAF Istituto di Astrofisica e Planetologia Spaziali, Via del fosso del cavaliere 100, 00133 Roma, ItalyUNSPECIFIED
Massironi, MGeosciences Department, University of Padova, Via G. Gradenigo 6, 35131 Padova, ItalyUNSPECIFIED
Vincent, Jean-BaptisteJean-Baptiste.Vincent (at) dlr.deUNSPECIFIED
Bertini, IDepartment of Physics and Astronomy ``G. Galilei”, University of Padova, Vic. Osservatorio 3, 35122 Padova, ItalyUNSPECIFIED
Naletto, GCenter of Studies and Activities for Space, CISAS, `G. Colombo’, University of Padova, Via Venezia 15, 35131 Padova, ItalyUNSPECIFIED
Ip, W HInstitute for Space Science, National Central University, 32054 Chung-Li, TaiwanUNSPECIFIED
Sierks, HMax-Planck-Institut für Sonnensystemforschung, Justus-von-Liebig-Weg 3, 37077 Göttingen, GermanyUNSPECIFIED
Lamy, P LLaboratoire Atmosphères, Milieux et Observations Spatiales, CNRS & Université de Versailles Saint-Quentin-en-Yvelines, 78280 Guyancourt, FranceUNSPECIFIED
Rodrigo, RCentro de Astrobiologa, CSIC-INTA, 28850 Torrejon de Ardoz, Madrid, SpainUNSPECIFIED
Koschny, DScientific Support Office, European Space Research and Technology Centre/ESA, Keplerlaan 1, Postbus 299, 2201 AZ Noordwijk ZH, The NetherlandsUNSPECIFIED
Keller, H UDeutsches Zentrum für Luft- und Raumfahrt (DLR), Institut für Planetenforschung, Rutherfordstrasse 2, 12489 Berlin, GermanyUNSPECIFIED
Agarwal, JMax-Planck-Institut für Sonnensystemforschung, Justus-von-Liebig-Weg 3, 37077 Göttingen, GermanyUNSPECIFIED
Barucci, M ALESIA, Observatoire de Paris, Université PSL, CNRS, Univ. Paris Diderot, Sorbonne Paris Cité, Sorbonne Université, 5 Place J. Janssen, 92195 Meudon Pricipal Cedex, FranceUNSPECIFIED
Bertaux, J LLaboratoire Atmosphères, Milieux et Observations Spatiales, CNRS & Université de Versailles Saint-Quentin-en-Yvelines, 78280 Guyancourt, FranceUNSPECIFIED
Bodewits, DPhysics Department, Auburn University, Allison Laboratory, Auburn, AL 36849, USAUNSPECIFIED
Cambianica, PCenter of Studies and Activities for Space, CISAS, `G. Colombo’, University of Padova, Via Venezia 15, 35131 Padova, ItalyUNSPECIFIED
Cremonese, GINAF Osservatorio Astronomico di Padova, Vic. Osservatorio 5, 35122 Padova, ItalyUNSPECIFIED
Da Deppo, VCNR-IFN UOS Padova LUXOR, Via Trasea 7, 35131 Padova, ItalyUNSPECIFIED
Debei, SDepartment of Mechanical Engineering, University of Padova, Via Venezia 1, 35131 Padova, ItalyUNSPECIFIED
De Cecco, MUNITN, University of Trento, Via Mesiano 77, 38100 Trento, ItalyUNSPECIFIED
Deller, JMax-Planck-Institut für Sonnensystemforschung, Justus-von-Liebig-Weg 3, 37077 Göttingen, GermanyUNSPECIFIED
El Maarry, M RLaboratory for Atmospheric and Space Physics, University of Colorado, 3665 Discovery Drive, CO 80301, USAUNSPECIFIED
Feller, CLESIA, Observatoire de Paris, Université PSL, CNRS, Univ. Paris Diderot, Sorbonne Paris Cité, Sorbonne Université, 5 Place J. Janssen, 92195 Meudon Pricipal Cedex, FranceUNSPECIFIED
Ferrari, SCenter of Studies and Activities for Space, CISAS, `G. Colombo’, University of Padova, Via Venezia 15, 35131 Padova, ItalyUNSPECIFIED
Fulle, MINAF Osservatorio Astronomico di Trieste, Via Tiepolo 11, 34143 Trieste, ItalyUNSPECIFIED
Gutierrez, P JInstituto de Astrofisica de Andalucia CSIC, Glorieta de la Astronomia, 18008 Granada, SpainUNSPECIFIED
Güttler, CMax-Planck-Institut für Sonnensystemforschung, Justus-von-Liebig-Weg 3, 37077 Göttingen, GermanyUNSPECIFIED
Lara, L MInstituto de Astrofisica de Andalucia CSIC, Glorieta de la Astronomia, 18008 Granada, SpainUNSPECIFIED
La Forgia, FDepartment of Physics and Astronomy ``G. Galilei”, University of Padova, Vic. Osservatorio 3, 35122 Padova, ItalyUNSPECIFIED
Lazzarin, MDepartment of Physics and Astronomy ``G. Galilei”, University of Padova, Vic. Osservatorio 3, 35122 Padova, ItalyUNSPECIFIED
Lin, Z-YInstitute for Space Science, National Central University, 32054 Chung-Li, TaiwanUNSPECIFIED
Lopez Moreno, J JInstituto de Astrofisica de Andalucia CSIC, Glorieta de la Astronomia, 18008 Granada, SpainUNSPECIFIED
Marzari, FDepartment of Physics and Astronomy ``G. Galilei”, University of Padova, Vic. Osservatorio 3, 35122 Padova, ItalyUNSPECIFIED
Preusker, Frankfrank.preusker (at) dlr.deUNSPECIFIED
Scholten, FrankDLR/frank.scholten (at) dlr.deUNSPECIFIED
Toth, IObservatory of the Hungarian Academy of Sciences, PO Box 67, 1525 Budapest, HungaryUNSPECIFIED
Tubiana, CMax-Planck-Institut für Sonnensystemforschung, Justus-von-Liebig-Weg 3, 37077 Göttingen, GermanyUNSPECIFIED
Date:7 March 2019
Journal or Publication Title:Monthly Notices of the Royal Astronomical Society
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:485
DOI :10.1093/mnras/stz446
Page Range:pp. 2139-2154
Publisher:Oxford University Press
ISSN:0035-8711
Status:Published
Keywords:67P/Churyumov–Gerasimenko Comets Rosetta Hapi
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
Institute of Planetary Research > Planetary Geodesy
Deposited By: Hviid, Stubbe
Deposited On:04 Dec 2019 12:47
Last Modified:04 Dec 2019 12:47

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