Long-term monitoring of comet 67P/Churyumov–Gerasimenko’s jets with OSIRIS onboard Rosetta

Schmitt, M. I.; Tubiana, C.; Güttler, C.; Sierks, H.; Vincent, J.-B.; Elmaarry, Mohamed Ramy; Bodewits, D.; Mottola, S.; Fornasier, S.; Hofmann, M.; Barbieri, C.; Lamy, P. L.; Rodrigo, R.; Koschny, D.; Rickman, H.; A’Hearn, M. F.; Agarwal, J.; Barucci, M. A.; Bertaux, J.-L.; Bertini, I.; ... (2017). Long-term monitoring of comet 67P/Churyumov–Gerasimenko’s jets with OSIRIS onboard Rosetta. Monthly notices of the Royal Astronomical Society, 469(Suppl_2), S380-S385. Oxford University Press 10.1093/mnras/stx1780

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We used the OSIRIS camera system onboard the Rosetta spacecraft to monitor jet activity of comet 67P/Churyumov–Gerasimenko. With a monthly cadence, we covered an epoch from 2014 December to 2015 October, thereby including the first equinox and the perihelion passage. Jet features were measured in individual images, which were used to perform a statistical inversion. The study provides maps for the locations of likeliest sources of jet activity on the comet’s surface as a function of time. The sources follow the subsolar latitude, show clustering and a broadening of the activity band with time in the Northern hemisphere. In the Southern hemisphere, they are not clustered but show a broader spread over all longitudes which is either related to the north–south dichotomy of the comet’s topography or due to a higher insolation during southern summer.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Physics Institute > Space Research and Planetary Sciences

UniBE Contributor:

Elmaarry, Mohamed Ramy and Thomas, Nicolas

Subjects:

500 Science > 520 Astronomy
600 Technology > 620 Engineering

ISSN:

0035-8711

Publisher:

Oxford University Press

Language:

English

Submitter:

Dora Ursula Zimmerer

Date Deposited:

13 Dec 2017 13:35

Last Modified:

13 Dec 2017 13:35

Publisher DOI:

10.1093/mnras/stx1780

BORIS DOI:

10.7892/boris.107213

URI:

https://boris.unibe.ch/id/eprint/107213

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