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

Z. Y. Lin; I. L. Lai; C. C. Su; W. H. Ip; J. C. Lee; J. S. Wu; J. B. Vincent; F. La Forgia; H. Sierks; C. Barbieri; P. L. Lamy; R. Rodrigo; D. Koschny; H. Rickman; H. U. Keller; J. Agarwal; M. F. A'Hearn; M. A. Barucci; J. L. Bertaux; I. Bertini; D. Bodewits; G. Cremonese; V. Da Deppo; B. Davidsson; S. Debei; M. De Cecco; S. Fornasier; M. Fulle; O. Groussin; P. J. Gutiérrez; C. Güttler; S. F. Hviid; L. Jorda; J. Knollenberg; G. Kovacs; J. R. Kramm; E. Kührt; M. Küppers; L. M. Lara; M. Lazzarin; J. J. López-Moreno; S. Lowry; F. Marzari; H. Michalik; S. Mottola; G. Naletto; N. Oklay; M. Pajola; A. Rozek; N. Thomas; C. Tubiana

doi:10.1051/0004-6361/201527784

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

Z. Y. Lin, I. L. Lai, C. C. Su, W. H. Ip, J. C. Lee, J. S. Wu, J. B. Vincent, F. La Forgia, H. Sierks, C. Barbieri, P. L. Lamy, R. Rodrigo, D. Koschny, H. Rickman, H. U. Keller, J. Agarwal, M. F. A'Hearn, M. A. Barucci, J. L. Bertaux, I. BertiniD. Bodewits, G. Cremonese, V. Da Deppo, B. Davidsson, S. Debei, M. De Cecco, S. Fornasier, M. Fulle, O. Groussin, P. J. Gutiérrez, C. Güttler, S. F. Hviid, L. Jorda, J. Knollenberg, G. Kovacs, J. R. Kramm, E. Kührt, M. Küppers, L. M. Lara, M. Lazzarin, J. J. López-Moreno, S. Lowry, F. Marzari, H. Michalik, S. Mottola, G. Naletto, N. Oklay, M. Pajola, A. Rozek, N. Thomas, C. Tubiana

Graduate Institute of Astronomy

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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.

Original language	English
Article number	L3
Journal	Astronomy and Astrophysics
Volume	588
DOIs	https://doi.org/10.1051/0004-6361/201527784
State	Published - 1 Apr 2016

Keywords

Comets: individual: 67P/Churyumov-Gerasimenko

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10.1051/0004-6361/201527784

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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., Lamy, P. L., Rodrigo, R., Koschny, D., Rickman, H., Keller, H. U., Agarwal, J., A'Hearn, M. F., Barucci, M. A., Bertaux, J. L., ... Tubiana, C. (2016). Observations and analysis of a curved jet in the coma of comet 67P/Churyumov-Gerasimenko. Astronomy and Astrophysics, 588, Article L3. https://doi.org/10.1051/0004-6361/201527784

@article{1092a373a6c84b59ab36095a007659d6,

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

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.",

keywords = "Comets: individual: 67P/Churyumov-Gerasimenko",

author = "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 H. Sierks and C. Barbieri and Lamy, {P. L.} and R. Rodrigo and D. Koschny and H. Rickman and Keller, {H. U.} and J. Agarwal and A'Hearn, {M. F.} and Barucci, {M. A.} and Bertaux, {J. L.} and I. Bertini and D. Bodewits and G. Cremonese and {Da Deppo}, V. and B. Davidsson and S. Debei and {De Cecco}, M. and S. Fornasier and M. Fulle and O. Groussin and Guti{\'e}rrez, {P. J.} and C. G{\"u}ttler and Hviid, {S. F.} and L. Jorda and J. Knollenberg and G. Kovacs and Kramm, {J. R.} and E. K{\"u}hrt and M. K{\"u}ppers and Lara, {L. M.} and M. Lazzarin and L{\'o}pez-Moreno, {J. J.} and S. Lowry and F. Marzari and H. Michalik and S. Mottola and G. Naletto and N. Oklay and M. Pajola and A. Rozek and N. Thomas and C. Tubiana",

note = "Publisher Copyright: {\textcopyright} ESO, 2016.",

year = "2016",

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day = "1",

doi = "10.1051/0004-6361/201527784",

language = "???core.languages.en_GB???",

volume = "588",

journal = "Astronomy and Astrophysics",

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Lin, ZY, Lai, IL, Su, CC, Ip, WH, Lee, JC, Wu, JS, Vincent, JB, La Forgia, F, Sierks, H, Barbieri, C, Lamy, PL, Rodrigo, R, Koschny, D, Rickman, H, Keller, HU, Agarwal, J, A'Hearn, MF, Barucci, MA, Bertaux, JL, Bertini, I, Bodewits, D, Cremonese, G, Da Deppo, V, Davidsson, B, Debei, S, De Cecco, M, Fornasier, S, Fulle, M, Groussin, O, Gutiérrez, PJ, Güttler, C, Hviid, SF, Jorda, L, Knollenberg, J, Kovacs, G, Kramm, JR, Kührt, E, Küppers, M, Lara, LM, Lazzarin, M, López-Moreno, JJ, Lowry, S, Marzari, F, Michalik, H, Mottola, S, Naletto, G, Oklay, N, Pajola, M, Rozek, A, Thomas, N & Tubiana, C 2016, 'Observations and analysis of a curved jet in the coma of comet 67P/Churyumov-Gerasimenko', Astronomy and Astrophysics, vol. 588, L3. https://doi.org/10.1051/0004-6361/201527784

TY - JOUR

T1 - Observations and analysis of a curved jet in the coma of comet 67P/Churyumov-Gerasimenko

AU - Lin, Z. Y.

AU - Lai, I. L.

AU - Su, C. C.

AU - Ip, W. H.

AU - Lee, J. C.

AU - Wu, J. S.

AU - Vincent, J. B.

AU - La Forgia, F.

AU - Sierks, H.

AU - Barbieri, C.

AU - Lamy, P. L.

AU - Rodrigo, R.

AU - Koschny, D.

AU - Rickman, H.

AU - Keller, H. U.

AU - Agarwal, J.

AU - A'Hearn, M. F.

AU - Barucci, M. A.

AU - Bertaux, J. L.

AU - Bertini, I.

AU - Bodewits, D.

AU - Cremonese, G.

AU - Da Deppo, V.

AU - Davidsson, B.

AU - Debei, S.

AU - De Cecco, M.

AU - Fornasier, S.

AU - Fulle, M.

AU - Groussin, O.

AU - Gutiérrez, P. J.

AU - Güttler, C.

AU - Hviid, S. F.

AU - Jorda, L.

AU - Knollenberg, J.

AU - Kovacs, G.

AU - Kramm, J. R.

AU - Kührt, E.

AU - Küppers, M.

AU - Lara, L. M.

AU - Lazzarin, M.

AU - López-Moreno, J. J.

AU - Lowry, S.

AU - Marzari, F.

AU - Michalik, H.

AU - Mottola, S.

AU - Naletto, G.

AU - Oklay, N.

AU - Pajola, M.

AU - Rozek, A.

AU - Thomas, N.

AU - Tubiana, C.

PY - 2016/4/1

Y1 - 2016/4/1

N2 - 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.

AB - 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.

KW - Comets: individual: 67P/Churyumov-Gerasimenko

UR - http://www.scopus.com/inward/record.url?scp=84961246131&partnerID=8YFLogxK

U2 - 10.1051/0004-6361/201527784

DO - 10.1051/0004-6361/201527784

M3 - 期刊論文

AN - SCOPUS:84961246131

SN - 0004-6361

VL - 588

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

M1 - L3

ER -

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

Abstract

Keywords

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