Observations and analysis of a curved jet in the coma of comet 67P/Churyumov-Gerasimenko

Lin, Z.-Y., Lai, I.-L., Su, C.-C., Ip, W.-H., Lee, J.-C., Wu, J.-S., Vincent, J.-B., La Forgia, F., Sierks, H., Barbieri, C., and others. Lamy, P. L., Rodrigo, R., Koschny, D., Rickman, H., Keller, H. U., Agarwal, J., A’Hearn, M. F., Barucci, M. A., Bertaux, J.–L., Bertini, I., Bodewits, D., Cremonese, G., Da Deppo, V., Davidsson, B., Debei, S., De Cecco, M., Fornasier, S., Fulle, M., Groussin, O., Gutiérrez, P. J., Güttler, C., Hviid, S. F., Jorda, L., Knollenberg, J., Kovacs, G., Kramm, J.-R., Kührt, E., Küppers, M., Lara, L. M., Lazzarin, M., López-Moreno, J. J., Lowry, S.C., Marzari, F., Michalik, H., Mottola, S., Naletto, G., Oklay, N., Pajola, M., Rożek, A., Thomas, N., and Tubiana, C. (hide) (2016) Observations and analysis of a curved jet in the coma of comet 67P/Churyumov-Gerasimenko. Astronomy & Astrophysics, 588 . L3. ISSN 0004-6361. (doi:10.1051/0004-6361/201527784) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

Abstract

Aims. We analyze the physical properties and dynamical origin of a curved jet of comet 67P/Churyumov-Gerasimenko that was observed repeatedly in several nucleus rotations starting on May 30 and persisting until early August, 2015. Methods. We simulated the motion of dust grains ejected from the nucleus surface under the influence of the gravity and viscous drag effect of the expanding gas flow from the rotating nucleus. Results. The formation of the curved jet is a combination of the size of the dust particles (~0.1?1 mm) and the location of the source region near the nucleus equator. This enhances the spiral feature of the collimated dust stream after the dust is accelerated to a terminal speed on the order of m s-1.

Item Type:	Article
DOI/Identification number:	10.1051/0004-6361/201527784
Divisions:	Faculties > Sciences > School of Physical Sciences Faculties > Sciences > School of Physical Sciences > Centre for Astrophysics and Planetary Sciences
Depositing User:	Stephen Lowry
Date Deposited:	26 Jan 2017 10:22 UTC
Last Modified:	29 May 2019 18:36 UTC
Resource URI:	https://kar.kent.ac.uk/id/eprint/60098 (The current URI for this page, for reference purposes)
Rożek, A.:	https://orcid.org/0000-0003-2341-2238