Seasonal exposure of carbon dioxide ice on the nucleus of comet 67P/Churyumov-Gerasimenko

G. Filacchione; A. Raponi; F. Capaccioni; M. Ciarniello; F. Tosi; M. T. Capria; M. C. De Sanctis; A. Migliorini; G. Piccioni; P. Cerroni; M. A. Barucci; S. Fornasier; B. Schmitt; E. Quirico; S. Erard; D. Bockelee-Morvan; C. Leyrat; G. Arnold; V. Mennella; E. Ammannito; G. Bellucci; J. Benkhoff; J. P. Bibring; A. Blanco; M. I. Blecka; R. Carlson; U. Carsenty; L. Colangeli; M. Combes; M. Combi; J. Crovisier; P. Drossart; T. Encrenaz; C. Federico; U. Fink; S. Fonti; M. Fulchignoni; W. H. Ip; P. Irwin; R. Jaumann; E. Kuehrt; Y. Langevin; G. Magni; T. McCord; L. Moroz; S. Mottola; E. Palomba; U. Schade; K. Stephan; F. Taylor; D. Tiphene; G. P. Tozzi; P. Beck; N. Biver; L. Bonal; J. Ph Combe; D. Despan; E. Flamini; M. Formisano; A. Frigeri; D. Grassi; M. S. Gudipati; D. Kappel; A. Longobardo; F. Mancarella; K. Markus; F. Merlin; R. Orosei; G. Rinaldi; M. Cartacci; A. Cicchetti; Y. Hello; F. Henry; S. Jacquinod; J. M. Reess; R. Noschese; R. Politi; G. Peter

doi:10.1126/science.aag3161

Seasonal exposure of carbon dioxide ice on the nucleus of comet 67P/Churyumov-Gerasimenko

G. Filacchione, A. Raponi, F. Capaccioni, M. Ciarniello, F. Tosi, M. T. Capria, M. C. De Sanctis, A. Migliorini, G. Piccioni, P. Cerroni, M. A. Barucci, S. Fornasier, B. Schmitt, E. Quirico, S. Erard, D. Bockelee-Morvan, C. Leyrat, G. Arnold, V. Mennella, E. AmmannitoG. Bellucci, J. Benkhoff, J. P. Bibring, A. Blanco, M. I. Blecka, R. Carlson, U. Carsenty, L. Colangeli, M. Combes, M. Combi, J. Crovisier, P. Drossart, T. Encrenaz, C. Federico, U. Fink, S. Fonti, M. Fulchignoni, W. H. Ip, P. Irwin, R. Jaumann, E. Kuehrt, Y. Langevin, G. Magni, T. McCord, L. Moroz, S. Mottola, E. Palomba, U. Schade, K. Stephan, F. Taylor, D. Tiphene, G. P. Tozzi, P. Beck, N. Biver, L. Bonal, J. Ph Combe, D. Despan, E. Flamini, M. Formisano, A. Frigeri, D. Grassi, M. S. Gudipati, D. Kappel, A. Longobardo, F. Mancarella, K. Markus, F. Merlin, R. Orosei, G. Rinaldi, M. Cartacci, A. Cicchetti, Y. Hello, F. Henry, S. Jacquinod, J. M. Reess, R. Noschese, R. Politi, G. Peter

Graduate Institute of Astronomy

Research output: Contribution to journal › Article › peer-review

66 Scopus citations

Abstract

Carbon dioxide (CO₂) is one of the most abundant species in cometary nuclei, but because of its high volatility, CO₂ ice is generally only found beneath the surface. We report the infrared spectroscopic identification of a CO₂ ice-rich surface area located in the Anhur region of comet 67P/Churyumov-Gerasimenko. Spectral modeling shows that about 0.1% of the 80- by 60-meter area is CO₂ ice. This exposed ice was observed a short time after the comet exited local winter; following the increased illumination, the CO₂ ice completely disappeared over about 3 weeks.We estimate the mass of the sublimated CO₂ ice and the depth of the eroded surface layer. We interpret the presence of CO₂ ice as the result of the extreme seasonal changes induced by the rotation and orbit of the comet.

Original language	English
Pages (from-to)	1563-1566
Number of pages	4
Journal	Science
Volume	354
Issue number	6319
DOIs	https://doi.org/10.1126/science.aag3161
State	Published - 23 Dec 2016

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Filacchione, G., Raponi, A., Capaccioni, F., Ciarniello, M., Tosi, F., Capria, M. T., De Sanctis, M. C., Migliorini, A., Piccioni, G., Cerroni, P., Barucci, M. A., Fornasier, S., Schmitt, B., Quirico, E., Erard, S., Bockelee-Morvan, D., Leyrat, C., Arnold, G., Mennella, V., ... Peter, G. (2016). Seasonal exposure of carbon dioxide ice on the nucleus of comet 67P/Churyumov-Gerasimenko. Science, 354(6319), 1563-1566. https://doi.org/10.1126/science.aag3161

@article{e79690ddd1a84507a7e44b8fe1aa8f0f,

title = "Seasonal exposure of carbon dioxide ice on the nucleus of comet 67P/Churyumov-Gerasimenko",

abstract = "Carbon dioxide (CO2) is one of the most abundant species in cometary nuclei, but because of its high volatility, CO2 ice is generally only found beneath the surface. We report the infrared spectroscopic identification of a CO2 ice-rich surface area located in the Anhur region of comet 67P/Churyumov-Gerasimenko. Spectral modeling shows that about 0.1% of the 80- by 60-meter area is CO2 ice. This exposed ice was observed a short time after the comet exited local winter; following the increased illumination, the CO2 ice completely disappeared over about 3 weeks.We estimate the mass of the sublimated CO2 ice and the depth of the eroded surface layer. We interpret the presence of CO2 ice as the result of the extreme seasonal changes induced by the rotation and orbit of the comet.",

author = "G. Filacchione and A. Raponi and F. Capaccioni and M. Ciarniello and F. Tosi and Capria, {M. T.} and {De Sanctis}, {M. C.} and A. Migliorini and G. Piccioni and P. Cerroni and Barucci, {M. A.} and S. Fornasier and B. Schmitt and E. Quirico and S. Erard and D. Bockelee-Morvan and C. Leyrat and G. Arnold and V. Mennella and E. Ammannito and G. Bellucci and J. Benkhoff and Bibring, {J. P.} and A. Blanco and Blecka, {M. I.} and R. Carlson and U. Carsenty and L. Colangeli and M. Combes and M. Combi and J. Crovisier and P. Drossart and T. Encrenaz and C. Federico and U. Fink and S. Fonti and M. Fulchignoni and Ip, {W. H.} and P. Irwin and R. Jaumann and E. Kuehrt and Y. Langevin and G. Magni and T. McCord and L. Moroz and S. Mottola and E. Palomba and U. Schade and K. Stephan and F. Taylor and D. Tiphene and Tozzi, {G. P.} and P. Beck and N. Biver and L. Bonal and Combe, {J. Ph} and D. Despan and E. Flamini and M. Formisano and A. Frigeri and D. Grassi and Gudipati, {M. S.} and D. Kappel and A. Longobardo and F. Mancarella and K. Markus and F. Merlin and R. Orosei and G. Rinaldi and M. Cartacci and A. Cicchetti and Y. Hello and F. Henry and S. Jacquinod and Reess, {J. M.} and R. Noschese and R. Politi and G. Peter",

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month = dec,

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doi = "10.1126/science.aag3161",

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volume = "354",

pages = "1563--1566",

journal = "Science",

issn = "0036-8075",

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Filacchione, G, Raponi, A, Capaccioni, F, Ciarniello, M, Tosi, F, Capria, MT, De Sanctis, MC, Migliorini, A, Piccioni, G, Cerroni, P, Barucci, MA, Fornasier, S, Schmitt, B, Quirico, E, Erard, S, Bockelee-Morvan, D, Leyrat, C, Arnold, G, Mennella, V, Ammannito, E, Bellucci, G, Benkhoff, J, Bibring, JP, Blanco, A, Blecka, MI, Carlson, R, Carsenty, U, Colangeli, L, Combes, M, Combi, M, Crovisier, J, Drossart, P, Encrenaz, T, Federico, C, Fink, U, Fonti, S, Fulchignoni, M, Ip, WH, Irwin, P, Jaumann, R, Kuehrt, E, Langevin, Y, Magni, G, McCord, T, Moroz, L, Mottola, S, Palomba, E, Schade, U, Stephan, K, Taylor, F, Tiphene, D, Tozzi, GP, Beck, P, Biver, N, Bonal, L, Combe, JP, Despan, D, Flamini, E, Formisano, M, Frigeri, A, Grassi, D, Gudipati, MS, Kappel, D, Longobardo, A, Mancarella, F, Markus, K, Merlin, F, Orosei, R, Rinaldi, G, Cartacci, M, Cicchetti, A, Hello, Y, Henry, F, Jacquinod, S, Reess, JM, Noschese, R, Politi, R & Peter, G 2016, 'Seasonal exposure of carbon dioxide ice on the nucleus of comet 67P/Churyumov-Gerasimenko', Science, vol. 354, no. 6319, pp. 1563-1566. https://doi.org/10.1126/science.aag3161

TY - JOUR

T1 - Seasonal exposure of carbon dioxide ice on the nucleus of comet 67P/Churyumov-Gerasimenko

AU - Filacchione, G.

AU - Raponi, A.

AU - Capaccioni, F.

AU - Ciarniello, M.

AU - Tosi, F.

AU - Capria, M. T.

AU - De Sanctis, M. C.

AU - Migliorini, A.

AU - Piccioni, G.

AU - Cerroni, P.

AU - Barucci, M. A.

AU - Fornasier, S.

AU - Schmitt, B.

AU - Quirico, E.

AU - Erard, S.

AU - Bockelee-Morvan, D.

AU - Leyrat, C.

AU - Arnold, G.

AU - Mennella, V.

AU - Ammannito, E.

AU - Bellucci, G.

AU - Benkhoff, J.

AU - Bibring, J. P.

AU - Blanco, A.

AU - Blecka, M. I.

AU - Carlson, R.

AU - Carsenty, U.

AU - Colangeli, L.

AU - Combes, M.

AU - Combi, M.

AU - Crovisier, J.

AU - Drossart, P.

AU - Encrenaz, T.

AU - Federico, C.

AU - Fink, U.

AU - Fonti, S.

AU - Fulchignoni, M.

AU - Ip, W. H.

AU - Irwin, P.

AU - Jaumann, R.

AU - Kuehrt, E.

AU - Langevin, Y.

AU - Magni, G.

AU - McCord, T.

AU - Moroz, L.

AU - Mottola, S.

AU - Palomba, E.

AU - Schade, U.

AU - Stephan, K.

AU - Taylor, F.

AU - Tiphene, D.

AU - Tozzi, G. P.

AU - Beck, P.

AU - Biver, N.

AU - Bonal, L.

AU - Combe, J. Ph

AU - Despan, D.

AU - Flamini, E.

AU - Formisano, M.

AU - Frigeri, A.

AU - Grassi, D.

AU - Gudipati, M. S.

AU - Kappel, D.

AU - Longobardo, A.

AU - Mancarella, F.

AU - Markus, K.

AU - Merlin, F.

AU - Orosei, R.

AU - Rinaldi, G.

AU - Cartacci, M.

AU - Cicchetti, A.

AU - Hello, Y.

AU - Henry, F.

AU - Jacquinod, S.

AU - Reess, J. M.

AU - Noschese, R.

AU - Politi, R.

AU - Peter, G.

PY - 2016/12/23

Y1 - 2016/12/23

N2 - Carbon dioxide (CO2) is one of the most abundant species in cometary nuclei, but because of its high volatility, CO2 ice is generally only found beneath the surface. We report the infrared spectroscopic identification of a CO2 ice-rich surface area located in the Anhur region of comet 67P/Churyumov-Gerasimenko. Spectral modeling shows that about 0.1% of the 80- by 60-meter area is CO2 ice. This exposed ice was observed a short time after the comet exited local winter; following the increased illumination, the CO2 ice completely disappeared over about 3 weeks.We estimate the mass of the sublimated CO2 ice and the depth of the eroded surface layer. We interpret the presence of CO2 ice as the result of the extreme seasonal changes induced by the rotation and orbit of the comet.

AB - Carbon dioxide (CO2) is one of the most abundant species in cometary nuclei, but because of its high volatility, CO2 ice is generally only found beneath the surface. We report the infrared spectroscopic identification of a CO2 ice-rich surface area located in the Anhur region of comet 67P/Churyumov-Gerasimenko. Spectral modeling shows that about 0.1% of the 80- by 60-meter area is CO2 ice. This exposed ice was observed a short time after the comet exited local winter; following the increased illumination, the CO2 ice completely disappeared over about 3 weeks.We estimate the mass of the sublimated CO2 ice and the depth of the eroded surface layer. We interpret the presence of CO2 ice as the result of the extreme seasonal changes induced by the rotation and orbit of the comet.

UR - http://www.scopus.com/inward/record.url?scp=84996565696&partnerID=8YFLogxK

U2 - 10.1126/science.aag3161

DO - 10.1126/science.aag3161

M3 - 期刊論文

AN - SCOPUS:84996565696

SN - 0036-8075

VL - 354

SP - 1563

EP - 1566

JO - Science

JF - Science

IS - 6319

ER -

Seasonal exposure of carbon dioxide ice on the nucleus of comet 67P/Churyumov-Gerasimenko

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