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

Lai, I.-L., Ip, W.-H., Lee, J.-C., Lin, Z.-Y., Vincent, J.-B., Oklay, N., et al. (2019). Seasonal variations in source regions of the dust jets on comet 67P/Churyumov-Gerasimenko. Astronomy and Astrophysics, 630: A17. doi:10.1051/0004-6361/201732094.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0005-0A7B-7 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-0A7C-6
Genre: Journal Article

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 Creators:
Lai, I.-L., Author
Ip, W.-H., Author
Lee, J.-C., Author
Lin, Z.-Y., Author
Vincent, J.-B., Author
Oklay, N., Author
Sierks, Holger1, Author              
Barbieri, C., Author
Lamy, P., Author
Rodrigo, R., Author
Koschny, D., Author
Rickman, H., Author
Keller, H. U., Author
Agarwal, Jessica1, Author              
Barucci, M. A., Author
Bertaux, J.-L., Author
Bertini, I., Author
Bodewits, D., Author
Boudreault, Steve1, Author              
Cremonese, G., Author
Da Deppo, V. , AuthorDavidsson, B., AuthorDebei, S., AuthorDe Cecco, M. , AuthorDeller, Jakob1, Author              Fornasier, S., AuthorFulle, M., AuthorGroussin, O., AuthorGutiérrez, P. J., AuthorGüttler, Carsten1, Author              Hofmann, M.1, AuthorHviid, S. F., AuthorJorda, L., AuthorKnollenberg, J., AuthorKovacs, Gabor1, Author              Kramm, J. Rainer1, Author              Kührt, E., AuthorKüppers, M., AuthorLara, L. M., AuthorLazzarin, M., AuthorLópez-Moreno, J. J., AuthorMarzari, F., AuthorNaletto, G., AuthorShi, Xian1, Author              Tubiana, Cecilia1, Author              Thomas, N., Author more..
Affiliations:
1Department Planets and Comets, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832288              

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Free keywords: comets: individual: 67P/Churyumov-Gerasimenko
 MPIS_PROJECTS: ROSETTA: OSIRIS
 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.

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Language(s): eng - English
 Dates: 2019
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1051/0004-6361/201732094
 Degree: -

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Title: Astronomy and Astrophysics
  Other : Astron. Astrophys.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Les Ulis Cedex A France : EDP Sciences
Pages: - Volume / Issue: 630 Sequence Number: A17 Start / End Page: - Identifier: Other: 1432-0746
ISSN: 0004-6361
CoNE: https://pure.mpg.de/cone/journals/resource/954922828219_1