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.; Sierks, Holger; Barbieri, C.; Lamy, P.; Rodrigo, R.; Koschny, D.; Rickman, H.; Keller, H. U.; Agarwal, Jessica; Barucci, M. A.; Bertaux, J.-L.; Bertini, I.; Bodewits, D.; Boudreault, Steve; Cremonese, G.; Da Deppo, V.; Davidsson, B.; Debei, S.; De Cecco, M.; Deller, Jakob; Fornasier, S.; Fulle, M.; Groussin, O.; Gutiérrez, P. J.; Güttler, Carsten; Hofmann, M.; Hviid, S. F.; Jorda, L.; Knollenberg, J.; Kovacs, Gabor; Kramm, J. Rainer; Kührt, E.; Küppers, M.; Lara, L. M.; Lazzarin, M.; López-Moreno, J. J.; Marzari, F.; Naletto, G.; Shi, Xian; Tubiana, Cecilia; Thomas, N.

doi:10.1051/0004-6361/201732094

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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: https://hdl.handle.net/21.11116/0000-0005-0A7B-7 Version Permalink: https://hdl.handle.net/21.11116/0000-0007-20AF-0

Genre: Journal Article

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Astrophysics Data System (ADS) (Abstract) Open Access status unknown

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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: Published Online: 2019

Publication Status: Published online

Pages: -

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Rev. Type: Peer

Identifiers: DOI: 10.1051/0004-6361/201732094

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Title: Astronomy and Astrophysics

Other : Astron. Astrophys.

Source Genre: Journal

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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