Seasonal variations in source regions of the dust jets on comet 67P/Churyumov-Gerasimenko

Lai, I.-L. and Ip, W.-H. and Lee, J.-C. and Lin, Z.-Y. and Vincent, Jean-Baptiste and Oklay, Nilda and Sierks, H. and Barbieri, C. and Lamy, P. and Rodrigo, R. and Koschny, D. and Rickman, H. and Keller, H. U. and Agarwal, J. and Barucci, M. A. and Bertaux, J.-L. and Bertini, I. and Bodewits, D. and Boudreault, S. and Cremonese, G. and Da Deppo, V. and Davidsson, B. and Debei, S. and De Cecco, M. and Deller, J. and Fornasier, S. and Fulle, M. and Groussin, O. and Gutiérrez, P. J. and Güttler, C. and Hofmann, M. and Hviid, Stubbe and Jorda, L. and Knollenberg, Jörg and Kovacs, G. and Kramm, J.-R. and Kührt, Ekkehard and Küppers, M. and Lara, L. M. and Lazzarin, M. and López-Moreno, J. J. and Marzari, F. and Naletto, G. and Shi, X. and Tubiana, C. and Thomas, N. (2019) Seasonal variations in source regions of the dust jets on comet 67P/Churyumov-Gerasimenko. Astronomy & Astrophysics, 630, A17. EDP Sciences. DOI: 10.1051/0004-6361/201732094 ISSN 0004-6361

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Official URL: https://www.aanda.org/articles/aa/abs/2019/10/aa32094-17/aa32094-17.html

Abstract

Aims. We investigate the surface distribution of the source regions of dust jets on comet 67P/Churyumov-Gerasimenko as a function of time. Methods. The dust jet source regions were traced by the comprehensive imaging data set provided by the OSIRIS scientific camera. Results. We show in detail how the projected footpoints of the dust jets and hence the outgassing zone would move in consonance with the sunlit belt. Furthermore, a number of source regions characterized by repeated jet activity might be the result of local topographical variations or compositional heterogeneities. Conclusions. The spatial and temporal variations in source regions of the dust jets are influenced significantly by the seasonal effect. The strong dependence on the solar zenith angle and local time could be related to the gas sublimation process driven by solar insolation on a surface layer of low thermal inertia.

Item URL in elib:

https://elib.dlr.de/131866/

Document Type:

Article

Title:

Seasonal variations in source regions of the dust jets on comet 67P/Churyumov-Gerasimenko

Authors:

Authors	Institution or Email of Authors	Authors ORCID iD
Lai, I.-L.	Graduate Institute of Space Sciences, National Central University,	UNSPECIFIED
Ip, W.-H.	Graduate Institute of Space Sciences, National Central University,	UNSPECIFIED
Lee, J.-C.	Department of Earth Science, National Central University, Taoyuan	UNSPECIFIED
Lin, Z.-Y.	Institute of Astronomy, National Central University, Taoyuan City	UNSPECIFIED
Vincent, Jean-Baptiste	Jean-Baptiste.Vincent (at) dlr.de	UNSPECIFIED
Oklay, Nilda	Nilda.OklayVincent (at) dlr.de	https://orcid.org/0000-0002-4909-9692
Sierks, H.	Max-Planck-Institut für Sonnensystemforschung, Justus-vonLiebig-Weg, 3 37077 Göttingen, Germany	UNSPECIFIED
Barbieri, C.	Department of Physics and Astronomy, University of Padova,	UNSPECIFIED
Lamy, P.	LAM (Laboratoire d’Astrophysique de Marseille), CNRS, Aix	UNSPECIFIED
Rodrigo, R.	Centro de Astrobiologia, CSIC-INTA, 28850 Torrejon de Ardoz,	UNSPECIFIED
Koschny, D.	Scientific Support Office, European Space Research and Technology	UNSPECIFIED
Rickman, H.	Department of Physics and Astronomy, Uppsala University, Box 516,	UNSPECIFIED
Keller, H. U.	Institut für Geophysik und extraterrestrische Physik (IGEP),	UNSPECIFIED
Agarwal, J.	Max-Planck-Institut für Sonnensystemforschung, Justus-vonLiebig-Weg, 3 37077 Göttingen, Germany	UNSPECIFIED
Barucci, M. A.	LESIA-Observatoire de Paris, CNRS, Université Pierre et Marie	UNSPECIFIED
Bertaux, J.-L.	CNR-IFN UOS Padova LUXOR, Via Trasea, 7, 35131 Padova, Italy	UNSPECIFIED
Bertini, I.	Center of Studies and Activities for Space G. Colombo, CISAS,	UNSPECIFIED
Bodewits, D.	Department of Physics, Auburn University, Auburn, AL 36849,	UNSPECIFIED
Boudreault, S.	Max-Planck-Institut für Sonnensystemforschung, Justus-vonLiebig-Weg, 3 37077 Göttingen, Germany	UNSPECIFIED
Cremonese, G.	INAF, Osservatorio Astronomico di Padova, Vicolo	UNSPECIFIED
Da Deppo, V.	CNR-IFN UOS Padova LUXOR, Via Trasea, 7, 35131 Padova, Italy	UNSPECIFIED
Davidsson, B.	Department of Physics and Astronomy, Uppsala University, Box 516,	UNSPECIFIED
Debei, S.	Department of Industrial Engineering, University of Padova, via Venezia 1, 35131 Padova, Italy	UNSPECIFIED
De Cecco, M.	University of Trento, Via Mesiano 77, 38100 Trento, Italy	UNSPECIFIED
Deller, J.	Max-Planck-Institut für Sonnensystemforschung, Justus-vonLiebig-Weg, 3 37077 Göttingen, Germany	UNSPECIFIED
Fornasier, S.	LESIA-Observatoire de Paris, CNRS, Université Pierre et Marie	UNSPECIFIED
Fulle, M.	INAF – Osservatorio Astronomico, Via Tiepolo 11, 34014 Trieste,	UNSPECIFIED
Groussin, O.	LAM (Laboratoire d’Astrophysique de Marseille), CNRS, Aix	UNSPECIFIED
Gutiérrez, P. J.	Instituto de Astrofísica de Andalucía (CSIC), Glorieta de la	UNSPECIFIED
Güttler, C.	Max-Planck-Institut für Sonnensystemforschung, Justus-vonLiebig-Weg, 3 37077 Göttingen, Germany	UNSPECIFIED
Hofmann, M.	Max-Planck-Institut für Sonnensystemforschung, Justus-vonLiebig-Weg, 3 37077 Göttingen, Germany	UNSPECIFIED
Hviid, Stubbe	Stubbe.Hviid (at) dlr.de	UNSPECIFIED
Jorda, L.	LAM (Laboratoire d’Astrophysique de Marseille), CNRS, Aix	UNSPECIFIED
Knollenberg, Jörg	Joerg.Knollenberg (at) dlr.de	UNSPECIFIED
Kovacs, G.	Max-Planck-Institut für Sonnensystemforschung, Justus-vonLiebig-Weg, 3 37077 Göttingen, Germany	UNSPECIFIED
Kramm, J.-R.	Max-Planck-Institut für Sonnensystemforschung, Justus-vonLiebig-Weg, 3 37077 Göttingen, Germany	UNSPECIFIED
Kührt, Ekkehard	Ekkehard.Kuehrt (at) dlr.de	UNSPECIFIED
Küppers, M.	Operations Department, European Space Astronomy Centre/ESA,	UNSPECIFIED
Lara, L. M.	Instituto de Astrofísica de Andalucía (CSIC), Glorieta de la	UNSPECIFIED
Lazzarin, M.	Department of Physics and Astronomy, University of Padova,	UNSPECIFIED
López-Moreno, J. J.	Instituto de Astrofísica de Andalucía (CSIC), Glorieta de la	UNSPECIFIED
Marzari, F.	Department of Physics and Astronomy, University of Padova,	UNSPECIFIED
Naletto, G.	Department of Information Engineering, University of Padova, Via	UNSPECIFIED
Shi, X.	Max-Planck-Institut für Sonnensystemforschung, Justus-vonLiebig-Weg, 3 37077 Göttingen, Germany	UNSPECIFIED
Tubiana, C.	Max-Planck-Institut für Sonnensystemforschung, Justus-vonLiebig-Weg, 3 37077 Göttingen, Germany	UNSPECIFIED
Thomas, N.	Physikalisches Institut der Universität Bern, Sidlerstr. 5, 3012 Bern, Switzerland	UNSPECIFIED

Date:

2019

Journal or Publication Title:

Astronomy & Astrophysics

Refereed publication:

Yes

Open Access:

Yes

Gold Open Access:

In SCOPUS:

Yes

In ISI Web of Science:

Yes

Volume:

630

DOI :

10.1051/0004-6361/201732094

Page Range:

A17

Publisher:

EDP Sciences

ISSN:

0004-6361

Status:

Published

Keywords:

67P/Churyumov-Gerasimenko Comets Rosetta Jets Activity

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:

Hviid, Stubbe

Deposited On:

04 Dec 2019 12:40

Last Modified:

04 Dec 2019 12:40

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