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

Lin, Z.-Y. and Lai, I.-L. and Su, C.-C. and Ip, W.-H. and Lee, J.-C. and Wu, J.-S. and Vincent, J.-B. and La Forgia, F. and Sierks, H. and Barbieri, C. and Lamy, P. L. and Rodrigo, R. and Koschny, D. and Rickman, H. and Keller, H. U. and Agarwal, J. and A’Hearn, M. F. and Barucci, M. A. and Bertaux, J.–L. and Bertini, I. and Bodewits, D. and Cremonese, G. and Da Deppo, V. and Davidsson, B. and Debei, S. and De Cecco, M. and Fornasier, S. and Fulle, M. and Groussin, O. and Gutiérrez, P. J. and Güttler, C. and Hviid, S. F. and Jorda, L. and Knollenberg, J. and Kovacs, G. and Kramm, J.-R. and Kührt, E. and Küppers, M. and Lara, L. M. and Lazzarin, M. and López-Moreno, J. J. and Lowry, S.C. and Marzari, F. and Michalik, H. and Mottola, S. and Naletto, G. and Oklay, N. and Pajola, M. and Rożek, A. and Thomas, N. and Tubiana, C. (2016) Observations and analysis of a curved jet in the coma of comet 67P/Churyumov-Gerasimenko. Astronomy & Astrophysics, 588 . L3. ISSN 0004-6361. (doi:https://doi.org/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)

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. (Contact us about this Publication)

Official URL http://doi.org/10.1051/0004-6361/201527784

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
Divisions:	Faculties > Sciences > School of Physical Sciences
Depositing User:	Matthias Werner
Date Deposited:	26 Jan 2017 10:22 UTC
Last Modified:	26 Jan 2017 10:22 UTC
Resource URI:	https://kar.kent.ac.uk/id/eprint/60098 (The current URI for this page, for reference purposes)