Evidence of sub-surface energy storage in comet 67P from the outburst of 2016 July 03

J. Agarwal; V. Della Corte; P. D. Feldman; B. Geiger; S. Merouane; I. Bertini; D. Bodewits; S. Fornasier; E. Grün; P. Hasselmann; M. Hilchenbach; S. Höfner; S. Ivanovski; L. Kolokolova; M. Pajola; A. Rotundi; H. Sierks; A. J. Steffl; N. Thomas; M. F. A'Hearn; C. Barbieri; M. A. Barucci; J. L. Bertaux; S. Boudreault; G. Cremonese; V. Da Deppo; B. Davidsson; S. Debei; M. De Cecco; J. F. Deller; L. M. Feaga; H. Fischer; M. Fulle; A. Gicquel; O. Groussin; C. Güttler; P. J. Gutiérrez; M. Hofmann; K. Hornung; S. F. Hviid; W. H. Ip; L. Jorda; H. U. Keller; J. Kissel; J. Knollenberg; A. Koch; D. Koschny; J. R. Kramm; E. Kührt; M. Küppers; P. L. Lamy; Y. Langevin; L. M. Lara; M. Lazzarin; Z. Y. Lin; J. J. Lopez Moreno; S. C. Lowry; F. Marzari; S. Mottola; G. Naletto; N. Oklay; J. Wm. Parker; R. Rodrigo; J. Rynö; X. Shi; O. Stenzel; C. Tubiana; J. B. Vincent; H. A. Weaver; B. Zaprudin

doi:10.1093/mnras/stx2386

Evidence of sub-surface energy storage in comet 67P from the outburst of 2016 July 03

J. Agarwal, V. Della Corte, P. D. Feldman, B. Geiger, S. Merouane, I. Bertini, D. Bodewits, S. Fornasier, E. Grün, P. Hasselmann, M. Hilchenbach, S. Höfner, S. Ivanovski, L. Kolokolova, M. Pajola, A. Rotundi, H. Sierks, A. J. Steffl, N. Thomas, M. F. A'HearnC. Barbieri, M. A. Barucci, J. L. Bertaux, S. Boudreault, G. Cremonese, V. Da Deppo, B. Davidsson, S. Debei, M. De Cecco, J. F. Deller, L. M. Feaga, H. Fischer, M. Fulle, A. Gicquel, O. Groussin, C. Güttler, P. J. Gutiérrez, M. Hofmann, K. Hornung, S. F. Hviid, W. H. Ip, L. Jorda, H. U. Keller, J. Kissel, J. Knollenberg, A. Koch, D. Koschny, J. R. Kramm, E. Kührt, M. Küppers, P. L. Lamy, Y. Langevin, L. M. Lara, M. Lazzarin, Z. Y. Lin, J. J. Lopez Moreno, S. C. Lowry, F. Marzari, S. Mottola, G. Naletto, N. Oklay, J. Wm. Parker, R. Rodrigo, J. Rynö, X. Shi, O. Stenzel, C. Tubiana, J. B. Vincent, H. A. Weaver, B. Zaprudin

Graduate Institute of Astronomy

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47 Scopus citations

Abstract

On 2016 July 03, several instruments onboard ESA's Rosetta spacecraft detected signs of an outburst event on comet 67P, at a heliocentric distance of 3.32 au from the Sun, outbound from perihelion. We here report on the inferred properties of the ejected dust and the surface change at the site of the outburst. The activity coincided with the local sunrise and continued over a time interval of 14-68 min. It left a 10-m-sized icy patch on the surface. The ejected material comprised refractory grains of several hundred microns in size, and sub-micron-sized water ice grains. The high dust mass production rate is incompatible with the free sublimation of crystalline water ice under solar illumination as the only acceleration process. Additional energy stored near the surface must have increased the gas density. We suggest a pressurized sub-surface gas reservoir, or the crystallization of amorphous water ice as possible causes.

Original language	English
Pages (from-to)	S606-S625
Journal	Monthly Notices of the Royal Astronomical Society
Volume	469
DOIs	https://doi.org/10.1093/mnras/stx2386
State	Published - 2017

Keywords

Acceleration of particles
Comets: general
Comets: individual: 67P/Churyumov-Gerasimenko
Scattering
Solid state: refractory
Solid state: volatile

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Agarwal, J., Della Corte, V., Feldman, P. D., Geiger, B., Merouane, S., Bertini, I., Bodewits, D., Fornasier, S., Grün, E., Hasselmann, P., Hilchenbach, M., Höfner, S., Ivanovski, S., Kolokolova, L., Pajola, M., Rotundi, A., Sierks, H., Steffl, A. J., Thomas, N., ... Zaprudin, B. (2017). Evidence of sub-surface energy storage in comet 67P from the outburst of 2016 July 03. Monthly Notices of the Royal Astronomical Society, 469, S606-S625. https://doi.org/10.1093/mnras/stx2386

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title = "Evidence of sub-surface energy storage in comet 67P from the outburst of 2016 July 03",

abstract = "On 2016 July 03, several instruments onboard ESA's Rosetta spacecraft detected signs of an outburst event on comet 67P, at a heliocentric distance of 3.32 au from the Sun, outbound from perihelion. We here report on the inferred properties of the ejected dust and the surface change at the site of the outburst. The activity coincided with the local sunrise and continued over a time interval of 14-68 min. It left a 10-m-sized icy patch on the surface. The ejected material comprised refractory grains of several hundred microns in size, and sub-micron-sized water ice grains. The high dust mass production rate is incompatible with the free sublimation of crystalline water ice under solar illumination as the only acceleration process. Additional energy stored near the surface must have increased the gas density. We suggest a pressurized sub-surface gas reservoir, or the crystallization of amorphous water ice as possible causes.",

keywords = "Acceleration of particles, Comets: general, Comets: individual: 67P/Churyumov-Gerasimenko, Scattering, Solid state: refractory, Solid state: volatile",

author = "J. Agarwal and {Della Corte}, V. and Feldman, {P. D.} and B. Geiger and S. Merouane and I. Bertini and D. Bodewits and S. Fornasier and E. Gr{\"u}n and P. Hasselmann and M. Hilchenbach and S. H{\"o}fner and S. Ivanovski and L. Kolokolova and M. Pajola and A. Rotundi and H. Sierks and Steffl, {A. J.} and N. Thomas and A'Hearn, {M. F.} and C. Barbieri and Barucci, {M. A.} and Bertaux, {J. L.} and S. Boudreault and G. Cremonese and {Da Deppo}, V. and B. Davidsson and S. Debei and {De Cecco}, M. and Deller, {J. F.} and Feaga, {L. M.} and H. Fischer and M. Fulle and A. Gicquel and O. Groussin and C. G{\"u}ttler and Guti{\'e}rrez, {P. J.} and M. Hofmann and K. Hornung and Hviid, {S. F.} and Ip, {W. H.} and L. Jorda and Keller, {H. U.} and J. Kissel and J. Knollenberg and A. Koch and D. Koschny and Kramm, {J. R.} and E. K{\"u}hrt and M. K{\"u}ppers and Lamy, {P. L.} and Y. Langevin and Lara, {L. M.} and M. Lazzarin and Lin, {Z. Y.} and {Lopez Moreno}, {J. J.} and Lowry, {S. C.} and F. Marzari and S. Mottola and G. Naletto and N. Oklay and {Wm. Parker}, J. and R. Rodrigo and J. Ryn{\"o} and X. Shi and O. Stenzel and C. Tubiana and Vincent, {J. B.} and Weaver, {H. A.} and B. Zaprudin",

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volume = "469",

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Agarwal, J, Della Corte, V, Feldman, PD, Geiger, B, Merouane, S, Bertini, I, Bodewits, D, Fornasier, S, Grün, E, Hasselmann, P, Hilchenbach, M, Höfner, S, Ivanovski, S, Kolokolova, L, Pajola, M, Rotundi, A, Sierks, H, Steffl, AJ, Thomas, N, A'Hearn, MF, Barbieri, C, Barucci, MA, Bertaux, JL, Boudreault, S, Cremonese, G, Da Deppo, V, Davidsson, B, Debei, S, De Cecco, M, Deller, JF, Feaga, LM, Fischer, H, Fulle, M, Gicquel, A, Groussin, O, Güttler, C, Gutiérrez, PJ, Hofmann, M, Hornung, K, Hviid, SF, Ip, WH, Jorda, L, Keller, HU, Kissel, J, Knollenberg, J, Koch, A, Koschny, D, Kramm, JR, Kührt, E, Küppers, M, Lamy, PL, Langevin, Y, Lara, LM, Lazzarin, M, Lin, ZY, Lopez Moreno, JJ, Lowry, SC, Marzari, F, Mottola, S, Naletto, G, Oklay, N, Wm. Parker, J, Rodrigo, R, Rynö, J, Shi, X, Stenzel, O, Tubiana, C, Vincent, JB, Weaver, HA & Zaprudin, B 2017, 'Evidence of sub-surface energy storage in comet 67P from the outburst of 2016 July 03', Monthly Notices of the Royal Astronomical Society, vol. 469, pp. S606-S625. https://doi.org/10.1093/mnras/stx2386

TY - JOUR

T1 - Evidence of sub-surface energy storage in comet 67P from the outburst of 2016 July 03

AU - Agarwal, J.

AU - Della Corte, V.

AU - Feldman, P. D.

AU - Geiger, B.

AU - Merouane, S.

AU - Bertini, I.

AU - Bodewits, D.

AU - Fornasier, S.

AU - Grün, E.

AU - Hasselmann, P.

AU - Hilchenbach, M.

AU - Höfner, S.

AU - Ivanovski, S.

AU - Kolokolova, L.

AU - Pajola, M.

AU - Rotundi, A.

AU - Sierks, H.

AU - Steffl, A. J.

AU - Thomas, N.

AU - A'Hearn, M. F.

AU - Barbieri, C.

AU - Barucci, M. A.

AU - Bertaux, J. L.

AU - Boudreault, S.

AU - Cremonese, G.

AU - Da Deppo, V.

AU - Davidsson, B.

AU - Debei, S.

AU - De Cecco, M.

AU - Deller, J. F.

AU - Feaga, L. M.

AU - Fischer, H.

AU - Fulle, M.

AU - Gicquel, A.

AU - Groussin, O.

AU - Güttler, C.

AU - Gutiérrez, P. J.

AU - Hofmann, M.

AU - Hornung, K.

AU - Hviid, S. F.

AU - Ip, W. H.

AU - Jorda, L.

AU - Keller, H. U.

AU - Kissel, J.

AU - Knollenberg, J.

AU - Koch, A.

AU - Koschny, D.

AU - Kramm, J. R.

AU - Kührt, E.

AU - Küppers, M.

AU - Lamy, P. L.

AU - Langevin, Y.

AU - Lara, L. M.

AU - Lazzarin, M.

AU - Lin, Z. Y.

AU - Lopez Moreno, J. J.

AU - Lowry, S. C.

AU - Marzari, F.

AU - Mottola, S.

AU - Naletto, G.

AU - Oklay, N.

AU - Wm. Parker, J.

AU - Rodrigo, R.

AU - Rynö, J.

AU - Shi, X.

AU - Stenzel, O.

AU - Tubiana, C.

AU - Vincent, J. B.

AU - Weaver, H. A.

AU - Zaprudin, B.

PY - 2017

Y1 - 2017

N2 - On 2016 July 03, several instruments onboard ESA's Rosetta spacecraft detected signs of an outburst event on comet 67P, at a heliocentric distance of 3.32 au from the Sun, outbound from perihelion. We here report on the inferred properties of the ejected dust and the surface change at the site of the outburst. The activity coincided with the local sunrise and continued over a time interval of 14-68 min. It left a 10-m-sized icy patch on the surface. The ejected material comprised refractory grains of several hundred microns in size, and sub-micron-sized water ice grains. The high dust mass production rate is incompatible with the free sublimation of crystalline water ice under solar illumination as the only acceleration process. Additional energy stored near the surface must have increased the gas density. We suggest a pressurized sub-surface gas reservoir, or the crystallization of amorphous water ice as possible causes.

AB - On 2016 July 03, several instruments onboard ESA's Rosetta spacecraft detected signs of an outburst event on comet 67P, at a heliocentric distance of 3.32 au from the Sun, outbound from perihelion. We here report on the inferred properties of the ejected dust and the surface change at the site of the outburst. The activity coincided with the local sunrise and continued over a time interval of 14-68 min. It left a 10-m-sized icy patch on the surface. The ejected material comprised refractory grains of several hundred microns in size, and sub-micron-sized water ice grains. The high dust mass production rate is incompatible with the free sublimation of crystalline water ice under solar illumination as the only acceleration process. Additional energy stored near the surface must have increased the gas density. We suggest a pressurized sub-surface gas reservoir, or the crystallization of amorphous water ice as possible causes.

KW - Acceleration of particles

KW - Comets: general

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

KW - Scattering

KW - Solid state: refractory

KW - Solid state: volatile

UR - http://www.scopus.com/inward/record.url?scp=85037044377&partnerID=8YFLogxK

U2 - 10.1093/mnras/stx2386

DO - 10.1093/mnras/stx2386

M3 - 期刊論文

AN - SCOPUS:85037044377

SN - 0035-8711

VL - 469

SP - S606-S625

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

ER -

Evidence of sub-surface energy storage in comet 67P from the outburst of 2016 July 03

Abstract

Keywords

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