Search Results - "Tzou, C"

Evolution of the plasma environment of comet 67P from spacecraft potential measurements by the Rosetta Langmuir probe instrument by Odelstad, E., Eriksson, A. I., Edberg, N. J. T., Johansson, F., Vigren, E., André, M., Tzou, C.-Y., Carr, C., Cupido, E.

“…We study the evolution of the plasma environment of comet 67P using measurements of the spacecraft potential from early September 2014 (heliocentric distance…”
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Xenon isotopes in 67P/Churyumov-Gerasimenko show that comets contributed to Earth's atmosphere by Marty, B., Altwegg, K., Balsiger, H., Bar-Nun, A., Bekaert, D. V., Berthelier, J.-J., Bieler, A., Briois, C., Calmonte, U., Combi, M., De Keyser, J., Fiethe, B., Fuselier, S. A., Gasc, S., Gombosi, T. I., Hansen, K. C., Hässig, M., Jäckel, A., Kopp, E., Korth, A., Le Roy, L., Mall, U., Mousis, O., Owen, T., Rème, H., Rubin, M., Sémon, T., Tzou, C.-Y., Waite, J. H., Wurz, P.

“…The origin of cometary matter and the potential contribution of comets to inner-planet atmospheres are long-standing problems. During a series of dedicated…”
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Abundant molecular oxygen in the coma of comet 67P/Churyumov–Gerasimenko by Bieler, A., Altwegg, K., Balsiger, H., Bar-Nun, A., Berthelier, J.-J., Bochsler, P., Briois, C., Calmonte, U., Combi, M., De Keyser, J., van Dishoeck, E. F., Fiethe, B., Fuselier, S. A., Gasc, S., Gombosi, T. I., Hansen, K. C., Hässig, M., Jäckel, A., Kopp, E., Korth, A., Le Roy, L., Mall, U., Maggiolo, R., Marty, B., Mousis, O., Owen, T., Rème, H., Rubin, M., Sémon, T., Tzou, C.-Y., Waite, J. H., Walsh, C., Wurz, P.

“…In situ measurement of O 2 in the coma of comet 67P/Churyumov–Gerasimenko shows local abundances ranging from one per cent to ten per cent relative to H 2 O;…”
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Organics in comet 67P – a first comparative analysis of mass spectra from ROSINA–DFMS, COSAC and Ptolemy by Altwegg, Kathrin, Balsiger, H., Berthelier, J.J., Bieler, A., Calmonte, U., Fuselier, S.A., Goesmann, F., Gasc, S., Gombosi, T. I., Le Roy, L., de Keyser, J., Morse, A., Rubin, M., Schuhmann, M., Taylor, M. G. G. T, Tzou, C.-Y., Wright, I.

“…Abstract The ESA Rosetta spacecraft followed comet 67P at a close distance for more than 2 yr. In addition, it deployed the lander Philae on to the surface of…”
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Sulphur-bearing species in the coma of comet 67P/Churyumov–Gerasimenko by Calmonte, U., Altwegg, K., Balsiger, H., Berthelier, J. J., Bieler, A., Cessateur, G., Dhooghe, F., van Dishoeck, E. F., Fiethe, B., Fuselier, S. A., Gasc, S., Gombosi, T. I., Hässig, M., Le Roy, L., Rubin, M., Sémon, T., Tzou, C.-Y., Wampfler, S. F.

“…Several sulphur-bearing species have already been observed in different families of comets. However, the knowledge on the minor sulphur species is still…”
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D₂O and HDS in the coma of 67P/Churyumov—Gerasimenko by Altwegg, K., Balsiger, H., Berthelier, J. J., Bieler, A., Calmonte, U., De Keyser, J., Fiethe, B., Fuselier, S. A., Gasc, S., Gombosi, T. I., Owen, T., Le Roy, L., Rubin, M., Sémon, T., Tzou, C.-Y.

“…The European Rosetta mission has been following comet 67P/Churyumov-Gerasimenko for 2 years, studying the nucleus and coma in great detail. For most of these 2…”
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Evolution of water production of 67P/Churyumov-Gerasimenko: An empirical model and a multi-instrument study by Hansen, Kenneth C., Altwegg, K., Berthelier, J.-J., Bieler, A., Biver, N., Bockelée-Morvan, D., Calmonte, U., Capaccioni, F., Combi, M. R., Keyser, J. De, Fiethe, B., Fougere, N., Fuselier, S. A., Gasc, S., Gombosi, T. I., Huang, Z., Le Roy, L., Lee, S., Nilsson, H., Rubin, M., Shou, Y., Snodgrass, C., Tenishev, V., Toth, G., Tzou, C.-Y., Wedlund, C. Simon

“…We examine the evolution of the water production of comet 67P/Churyumov-Gerasimenko during the Rosetta mission (June 2014 to May 2016) based on in situ and…”
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ALMA and ROSINA detections of phosphorus-bearing molecules: the interstellar thread between star-forming regions and comets by Rivilla, V M, Drozdovskaya, M N, Altwegg, K, Caselli, P, Beltrán, M T, Fontani, F, van der Tak, F F S, Cesaroni, R, Vasyunin, A, Rubin, M, Lique, F, Marinakis, S, Testi, L, Balsiger, H, Berthelier, J J, De Keyser, J, Fiethe, B, Fuselier, S A, Gasc, S, Gombosi, T I, Sémon, T, Tzou, C-Y

“…ABSTRACT To understand how phosphorus (P)-bearing molecules are formed in star-forming regions, we have analysed the Atacama Large Millimeter/Submillimeter…”
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Molecular nitrogen in comet 67P/Churyumov-Gerasimenko indicates a low formation temperature by Rubin, M., Altwegg, K., Balsiger, H., Bar-Nun, A., Berthelier, J.-J., Bieler, A., Bochsler, P., Briois, C., Calmonte, U., Combi, M., De Keyser, J., Dhooghe, F., Eberhardt, P., Fiethe, B., Fuselier, S. A., Gasc, S., Gombosi, T. I., Hansen, K. C., Hässig, M., Jäckel, A., Kopp, E., Korth, A., Le Roy, L., Mall, U., Marty, B., Mousis, O., Owen, T., Réme, H., Sémon, T., Tzou, C.-Y., Waite, J. H., Wurz, P.

“…Molecular nitrogen (N2) is thought to have been the most abundant form of nitrogen in the protosolar nebula. It is the main N-bearing molecule in the…”
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Charge exchange in cometary coma: Discovery of H− ions in the solar wind close to comet 67P/Churyumov-Gerasimenko by Burch, J. L., Cravens, T. E., Llera, K., Goldstein, R., Mokashi, P., Tzou, C.-Y., Broiles, T.

“…As Rosetta was orbiting comet 67P/Churyumov‐Gerasimenko, the Ion and Electron Sensor detected negative particles with angular distributions like those of the…”
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67P/Churyumov-Gerasimenko, a Jupiter family comet with a high D/H ratio by Altwegg, K., Balsiger, H., Bar-Nun, A., Berthelier, J. J., Bieler, A., Bochsler, P., Briois, C., Calmonte, U., Combi, M., De Keyser, J., Eberhardt, P., Fiethe, B., Fuselier, S., Gasc, S., Gombosi, T. I., Hansen, K.C., Hässig, M., Jäckel, A., Kopp, E., Korth, A., LeRoy, L., Mall, U., Marty, B., Mousis, O., Neefs, E., Owen, T., Rème, H., Rubin, M., Sémon, T., Tzou, C.-Y., Waite, H., Wurz, P.

“…The provenance of water and organic compounds on Earth and other terrestrial planets has been discussed for a long time without reaching a consensus. One of…”
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Ionospheric plasma of comet 67P probed by Rosetta at 3 au from the Sun by Galand, M., Héritier, K. L., Odelstad, E., Henri, P., Broiles, T. W., Allen, A. J., Altwegg, K., Beth, A., Burch, J. L., Carr, C. M., Cupido, E., Eriksson, A. I., Glassmeier, K.-H., Johansson, F. L., Lebreton, J.-P., Mandt, K. E., Nilsson, H., Richter, I., Rubin, M., Sagnières, L. B. M., Schwartz, S. J., Sémon, T., Tzou, C.-Y., Vallières, X., Vigren, E., Wurz, P.

“…We propose to identify the main sources of ionization of the plasma in the coma of comet 67P/Churyumov–Gerasimenko at different locations in the coma and to…”
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RPC observation of the development and evolution of plasma interaction boundaries at 67P/Churyumov-Gerasimenko by Mandt, K. E., Eriksson, A., Edberg, N. J. T., Koenders, C., Broiles, T., Fuselier, S. A., Henri, P., Nemeth, Z., Alho, M., Biver, N., Beth, A., Burch, J., Carr, C., Chae, K., Coates, A. J., Cupido, E., Galand, M., Glassmeier, K.-H., Goetz, C., Goldstein, R., Hansen, K. C., Haiducek, J., Kallio, E., Lebreton, J.-P., Luspay-Kuti, A., Mokashi, P., Nilsson, H., Opitz, A., Richter, I., Samara, M., Szego, K., Tzou, C.-Y., Volwerk, M., Simon Wedlund, C., Stenberg Wieser, G.

“…One of the primary objectives of the Rosetta Plasma Consortium, a suite of five plasma instruments on-board the Rosetta spacecraft, is to observe the formation…”
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Ion composition at comet 67P near perihelion: Rosetta observations and model-based interpretation by Heritier, K. L., Altwegg, K., Balsiger, H., Berthelier, J.-J., Beth, A., Bieler, A., Biver, N., Calmonte, U., Combi, M. R., De Keyser, J., Eriksson, A. I., Fiethe, B., Fougere, N., Fuselier, S. A., Galand, M., Gasc, S., Gombosi, T. I., Hansen, K. C., Hassig, M., Kopp, E., Odelstad, E., Rubin, M., Tzou, C.-Y., Vigren, E., Vuitton, V.

“…Abstract We present the ion composition in the coma of comet 67P with newly detected ion species over the 28–37 u mass range, probed by Rosetta Orbiter…”
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Direct Simulation Monte Carlo modelling of the major species in the coma of comet 67P/Churyumov-Gerasimenko by Fougere, Nicolas, Altwegg, K., Berthelier, J.-J., Bieler, A., Bockelée-Morvan, D., Calmonte, U., Capaccioni, F., Combi, M. R., De Keyser, J., Debout, V., Erard, S., Fiethe, B., Filacchione, G., Fink, U., Fuselier, S. A., Gombosi, T. I., Hansen, K. C., Hässig, M., Huang, Z., Le Roy, L., Leyrat, C., Migliorini, A., Piccioni, G., Rinaldi, G., Rubin, M., Shou, Y., Tenishev, V., Toth, G., Tzou, C.-Y.

“…We analyze the ROSINA-DFMS data between August 2014 and February 2016 to examine the effect of seasonal variations on the four major species within the coma of…”
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Time variability and heterogeneity in the coma of 67P/Churyumov-Gerasimenko by Hässig, M., Altwegg, K., Balsiger, H., Bar-Nun, A., Berthelier, J. J., Bieler, A., Bochsler, P., Briois, C., Calmonte, U., Combi, M., De Keyser, J., Eberhardt, P., Fiethe, B., Fuselier, S. A., Galand, M., Gasc, S., Gombosi, T. I., Hansen, K. C., Jäckel, A., Keller, H. U., Kopp, E., Korth, A., Kührt, E., Le Roy, L., Mall, U., Marty, B., Mousis, O., Neefs, E., Owen, T., Rème, H., Rubin, M., Sémon, T., Tornow, C., Tzou, C.-Y., Waite, J. H., Wurz, P.

“…Comets contain the best-preserved material from the beginning of our planetary system. Their nuclei and comae composition reveal clues about physical and…”
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Sulphur isotope mass-independent fractionation observed in comet 67P/Churyumov–Gerasimenko by Rosetta/ROSINA by Calmonte, U, Altwegg, K, Balsiger, H, Berthelier, J-J, Bieler, A, De Keyser, J, Fiethe, B, Fuselier, S A, Gasc, S, Gombosi, T I, Le Roy, L, Rubin, M, Sémon, T, Tzou, C-Y, Wampfler, S F

“…The knowledge about sulphur isotopic fractionation in volatile cometary species is limited as only measurements in five comets have been done and only for…”
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Effective ion speeds at ∼200–250 km from comet 67P/Churyumov–Gerasimenko near perihelion by Vigren, E., André, M., Edberg, N. J. T., Engelhardt, I. A. D., Eriksson, A. I., Galand, M., Goetz, C., Henri, P., Heritier, K., Johansson, F. L., Nilsson, H., Odelstad, E., Rubin, M., Stenberg-Wieser, G., Tzou, C.-Y., Vallières, X.

“…Abstract In 2015 August, comet 67P/Churyumov–Gerasimenko, the target comet of the ESA Rosetta mission, reached its perihelion at ∼1.24 au. Here, we estimate…”
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Ion chemistry in the coma of comet 67P near perihelion by Fuselier, S. A., Altwegg, K., Balsiger, H., Berthelier, J. J., Beth, A., Bieler, A., Briois, C., Broiles, T. W., Burch, J. L., Calmonte, U., Cessateur, G., Combi, M., De Keyser, J., Fiethe, B., Galand, M., Gasc, S., Gombosi, T. I., Gunell, H., Hansen, K. C., Hässig, M., Heritier, K. L., Korth, A., Le Roy, L., Luspay-Kuti, A., Mall, U., Mandt, K. E., Petrinec, S. M., Rème, H., Rinaldi, M., Rubin, M., Sémon, T., Trattner, K. J., Tzou, C.-Y., Vigren, E., Waite, J. H., Wurz, P.

“…The coma and the comet-solar wind interaction of comet 67P/Churyumov-Gerasimenko changed dramatically from the initial Rosetta spacecraft encounter in August…”
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Ultrasound of the Hypoglossal Nerve in the Neck: Visualization and Initial Clinical Experience with Patients by Meng, S, Reissig, L F, Tzou, C-H, Meng, K, Grisold, W, Weninger, W

“…The hypoglossal nerve, providing motor innervation for the tongue, can be affected in many diseases of the neck and skull base, leading to dysarthria,…”
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