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2. Investigating Mercury's Environment with the Two-Spacecraft BepiColombo Mission

Author

Milillo, A., Fujimoto, M., Murakami, G., Benkhoff, J., Zender, J., Aizawa, S., Dósa, M., Griton, L., Heyner, D., Ho, G., Imber, S. M., Jia, X., Karlsson, T., Killen, R. M., Laurenza, M., Lindsay, S. T., McKenna-Lawlor, S., Mura, A., Raines, J. M., Rothery, D. A., André, N., Baumjohann, W., Berezhnoy, A., Bourdin, P. -A., Bunce, E. J., Califano, F., Deca, J., de la Fuente, S., Dong, C., Grava, C., Fatemi, S., Henri, P., Ivanovski, S. L., Jackson, B. V., James, M., Kallio, E., Kasaba, Y., Kilpua, E., Kobayashi, M., Langlais, B., Leblanc, F., Lhotka, C., Mangano, V., Martindale, A., Massetti, S., Masters, A., Morooka, M., Narita, Y., Oliveira, J. S., Odstrcil, D., Orsini, S., Pelizzo, M. G., Plainaki, C., Plaschke, F., Sahraoui, F., Seki, K., Slavin, J. A., Vainio, R., Wurz, P., Barabash, S., Carr, C. M., Delcourt, D., Glassmeier, K. -H., Grande, M., Hirahara, M., Huovelin, J., Korablev, O., Kojima, H., Lichtenegger, H., Livi, S., Matsuoka, A., Moissl, R., Moncuquet, M., Muinonen, K., Quèmerais, E., Saito, Y., Yagitani, S., Yoshikawa, I., and Wahlund, J. -E.

Subjects
Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

The ESA-JAXA BepiColombo mission will provide simultaneous measurements from two spacecraft, offering an unprecedented opportunity to investigate magnetospheric and exospheric dynamics at Mercury as well as their interactions with the solar wind, radiation, and interplanetary dust. Many scientific instruments onboard the two spacecraft will be completely, or partially devoted to study the near-space environment of Mercury as well as the complex processes that govern it. Many issues remain unsolved even after the MESSENGER mission that ended in 2015. The specific orbits of the two spacecraft, MPO and Mio, and the comprehensive scientific payload allow a wider range of scientific questions to be addressed than those that could be achieved by the individual instruments acting alone, or by previous missions. These joint observations are of key importance because many phenomena in Mercury's environment are highly temporally and spatially variable. Examples of possible coordinated observations are described in this article, analysing the required geometrical conditions, pointing, resolutions and operation timing of different BepiColombo instruments sensors., Comment: 78 pages, 14 figures, published

Published
2022
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5. Inner southern magnetosphere observation of Mercury via SERENA ion sensors in BepiColombo mission

Author

Orsini, S., Milillo, A., Lichtenegger, H., Varsani, A., Barabash, S., Livi, S., De Angelis, E., Alberti, T., Laky, G., Nilsson, H., Phillips, M., Aronica, A., Kallio, E., Wurz, P., Olivieri, A., Plainaki, C., Slavin, J. A., Dandouras, I., Raines, J. M., Benkhoff, J., Zender, J., Berthelier, J.-J., Dosa, M., Ho, G. C., Killen, R. M., McKenna-Lawlor, S., Torkar, K., Vaisberg, O., Allegrini, F., Daglis, I. A., Dong, C., Escoubet, C. P., Fatemi, S., Fränz, M., Ivanovski, S., Krupp, N., Lammer, H., Leblanc, François, Mangano, V., Mura, A., Rispoli, R., Sarantos, M., Smith, H. T., Wieser, M., Camozzi, F., Di Lellis, A. M., Fremuth, G., Giner, F., Gurnee, R., Hayes, J., Jeszenszky, H., Trantham, B., Balaz, J., Baumjohann, W., Cantatore, M., Delcourt, D., Delva, M., Desai, M., Fischer, H., Galli, A., Grande, M., Holmström, M., Horvath, I., Hsieh, K. C., Jarvinen, R., Johnson, R. E., Kazakov, A., Kecskemety, K., Krüger, H., Kürbisch, C., Leblanc, Frederic, Leichtfried, M., Mangraviti, E., Massetti, S., Moissenko, D., Moroni, M., Noschese, R., Nuccilli, F., Paschalidis, N., Ryno, J., Seki, K., Shestakov, A., Shuvalov, S., Sordini, R., Stenbeck, F., Svensson, J., Szalai, S., Szego, K., Toublanc, D., Vertolli, N., Wallner, R., and Vorburger, A.

Published
2022
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7. Comparative Na and K Mercury and Moon Exospheres

Author

Leblanc, F., Schmidt, C., Mangano, V., Mura, A., Cremonese, G., Raines, J. M., Jasinski, J. M., Sarantos, M., Milillo, A., Killen, R. M., Massetti, S., Cassidy, T., Vervack, Jr., R. J., Kameda, S., Capria, M. T., Horanyi, M., Janches, D., Berezhnoy, A., Christou, A., Hirai, T., Lierle, P., and Morgenthaler, J.

Published
2022
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8. Dynamical Evolution of Sodium Anysotropies in the Exosphere of Mercury

Author

Mangano, V., Massetti, S., Milillo, A., Mura, A., Orsini, S., and Leblanc, F.

Subjects
Astrophysics - Earth and Planetary Astrophysics
Abstract

The exosphere, the tenuous collisionless cloud of gas surrounding Mercury is still a poorly known object because it is the result of many various interactions between the surface, the interplanetary medium (Solar wind, photons and meteoroids), the planetary and the interplanetary magnetic fields. Many ground-based observations have allowed the detection of intense and variable sodium emissions at global and local spatial scales, the latter being mostly concentrated in the polarmid latitude regions. These regions are indeed the preferred location of solar wind precipitation on the surface of the planet. In the present paper, by using high resolution Na observations obtained at the Canary Islands with the THEMIS solar telescope, we analyze the variability of the sodium exosphere on time-scale of 1 hour and investigate the possible mechanisms that could explain the exospheric sodium emission distribution and its dynamics. Our interpretation relates the observed sodium asymmetries to the combined effects of plasma and photons impacts onto the Mercury's surface and of sodium diffusion through the upper layer of the surface. The comparison between data and simulations seems to evidence that, similarly to what occurs at the Earth, both the magnetic reconnection regimes of pulsed or quasi-steady reconnection could occur on Mercury, and be responsible for the observed Na short term variations. In addition to this, a progressive broadening of the peak regions together with an increase of the equatorial region seem to corroborate the idea of the role of photon stimulated desorption, in association with ion sputtering and with global sodium migration around Mercury as the cause of the observed evolution of the Na exosphere., Comment: 26 pages, 7 figures, submitted to PSS

Published
2012

9. Space Weathering on Near-Earth Objects investigated by neutral-particle detection

Author

Plainaki, C., Milillo, A., Orsini, S., Mura, A., De Angelis, E., Di Lellis, A. M., Dotto, E., Livi, S., Mangano, V., Massetti, S., and Palumbo, M. E.

Subjects
Physics - Space Physics
Abstract

The ion-sputtering (IS) process is active in many planetary environments in the Solar System where plasma precipitates directly on the surface (for instance, Mercury, Moon, Europa). In particular, solar-wind sputtering is one of the most important agents for the surface erosion of a Near-Earth Object (NEO), acting together with other surface release processes, such as Photon Stimulated Desorption (PSD), Thermal Desorption (TD) and Micrometeoroid Impact Vaporization (MIV). The energy distribution of the IS-released neutrals peaks at a few eVs and extends up to hundreds of eVs. Since all other release processes produce particles of lower energies, the presence of neutral atoms in the energy range above 10 eV and below a few keVs (Sputtered High-Energy Atoms - SHEA) identifies the IS process. SHEA easily escape from the NEO, due to NEO's extremely weak gravity. Detection and analysis of SHEA will give important information on surface-loss processes as well as on surface elemental composition. The investigation of the active release processes, as a function of the external conditions and the NEO surface properties, is crucial for obtaining a clear view of the body's present loss rate as well as for getting clues on its evolution, which depends significantly on space weather. In this work, an attempt to analyze the processes that take place on the surface of these small airless bodies, as a result of their exposure to the space environment, has been realized. For this reason a new space weathering model (Space Weathering on NEO - SPAWN), is presented. Moreover, an instrument concept of a neutral-particle analyzer specifically designed for the measurement of neutral density and the detection of SHEA from a NEO is proposed, Comment: 36 pages

Published
2008
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10. Low energy high angular resolution neutral atom detection by means of micro-shuttering techniques: the BepiColombo SERENA/ELENA sensor

Author

Orsini, S., Di Lellis, A. M., Milillo, A., De Angelis, E., Mura, A., Selci, S., Dandouras, I., Cerulli-Irelli, P., Leoni, R., Mangano, V., Massetti, S., Mattioli, F., Orfei, R., Austin, C., Medale, J. -L., Vertolli, N., and Di Giulio, D.

Subjects
Physics - Instrumentation and Detectors, Physics - Space Physics
Abstract

The neutral sensor ELENA (Emitted Low-Energy Neutral Atoms) for the ESA cornerstone BepiColombo mission to Mercury (in the SERENA instrument package) is a new kind of low energetic neutral atoms instrument, mostly devoted to sputtering emission from planetary surfaces, from E ~20 eV up to E~5 keV, within 1-D (2x76 deg). ELENA is a Time-of-Flight (TOF) system, based on oscillating shutter (operated at frequencies up to a 100 kHz) and mechanical gratings: the incoming neutral particles directly impinge upon the entrance with a definite timing (START) and arrive to a STOP detector after a flight path. After a brief dissertation on the achievable scientific objectives, this paper describes the instrument, with the new design techniques approached for the neutral particles identification and the nano-techniques used for designing and manufacturing the nano-structure shuttering core of the ELENA sensor. The expected count-rates, based on the Hermean environment features, are shortly presented and discussed. Such design technologies could be fruitfully exported to different applications for planetary exploration., Comment: 11 pages

Published
2008
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11. Correction to: SERENA: Particle Instrument Suite for Determining the Sun-Mercury Interaction from BepiColombo

Author

Orsini, S., Livi, S. A., Lichtenegger, H., Barabash, S., Milillo, A., De Angelis, E., Phillips, M., Laky, G., Wieser, M., Olivieri, A., Plainaki, C., Ho, G., Killen, R. M., Slavin, J. A., Wurz, P., Berthelier, J.-J., Dandouras, I., Kallio, E., McKenna-Lawlor, S., Szalai, S., Torkar, K., Vaisberg, O., Allegrini, F., Daglis, I. A., Dong, C., Escoubet, C. P., Fatemi, S., Fränz, M., Ivanovski, S., Krupp, N., Lammer, H., Leblanc, François, Mangano, V., Mura, A., Nilsson, H., Raines, J. M., Rispoli, R., Sarantos, M., Smith, H. T., Szego, K., Aronica, A., Camozzi, F., Di Lellis, A. M., Fremuth, G., Giner, F., Gurnee, R., Hayes, J., Jeszenszky, H., Tominetti, F., Trantham, B., Balaz, J., Baumjohann, W., Brienza, D., Bührke, U., Bush, M. D., Cantatore, M., Cibella, S., Colasanti, L., Cremonese, G., Cremonesi, L., D’Alessandro, M., Delcourt, D., Delva, M., Desai, M., Fama, M., Ferris, M., Fischer, H., Gaggero, A., Gamborino, D., Garnier, P., Gibson, W. C., Goldstein, R., Grande, M., Grishin, V., Haggerty, D., Holmström, M., Horvath, I., Hsieh, K.-C., Jacques, A., Johnson, R. E., Kazakov, A., Kecskemety, K., Krüger, H., Kürbisch, C., Lazzarotto, F., Leblanc, Frederic, Leichtfried, M., Leoni, R., Loose, A., Maschietti, D., Massetti, S., Mattioli, F., Miller, G., Moissenko, D., Morbidini, A., Noschese, R., Nuccilli, F., Nunez, C., Paschalidis, N., Persyn, S., Piazza, D., Oja, M., Ryno, J., Schmidt, W., Scheer, J. A., Shestakov, A., Shuvalov, S., Seki, K., Selci, S., Smith, K., Sordini, R., Svensson, J., Szalai, L., Toublanc, D., Urdiales, C., Varsani, A., Vertolli, N., Wallner, R., Wahlstroem, P., Wilson, P., and Zampieri, S.

Published
2021
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12. SERENA: Particle Instrument Suite for Determining the Sun-Mercury Interaction from BepiColombo

Author

Orsini, S., Livi, S. A., Lichtenegger, H., Barabash, S., Milillo, A., De Angelis, E., Phillips, M., Laky, G., Wieser, M., Olivieri, A., Plainaki, C., Ho, G., Killen, R. M., Slavin, J. A., Wurz, P., Berthelier, J.-J., Dandouras, I., Kallio, E., McKenna-Lawlor, S., Szalai, S., Torkar, K., Vaisberg, O., Allegrini, F., Daglis, I. A., Dong, C., Escoubet, C. P., Fatemi, S., Fränz, M., Ivanovski, S., Krupp, N., Lammer, H., Leblanc, François, Mangano, V., Mura, A., Nilsson, H., Raines, J. M., Rispoli, R., Sarantos, M., Smith, H. T., Szego, K., Aronica, A., Camozzi, F., Di Lellis, A. M., Fremuth, G., Giner, F., Gurnee, R., Hayes, J., Jeszenszky, H., Tominetti, F., Trantham, B., Balaz, J., Baumjohann, W., Brienza, D., Bührke, U., Bush, M. D., Cantatore, M., Cibella, S., Colasanti, L., Cremonese, G., Cremonesi, L., D’Alessandro, M., Delcourt, D., Delva, M., Desai, M., Fama, M., Ferris, M., Fischer, H., Gaggero, A., Gamborino, D., Garnier, P., Gibson, W. C., Goldstein, R., Grande, M., Grishin, V., Haggerty, D., Holmström, M., Horvath, I., Hsieh, K.-C., Jacques, A., Johnson, R. E., Kazakov, A., Kecskemety, K., Krüger, H., Kürbisch, C., Lazzarotto, F., Leblanc, Frederic, Leichtfried, M., Leoni, R., Loose, A., Maschietti, D., Massetti, S., Mattioli, F., Miller, G., Moissenko, D., Morbidini, A., Noschese, R., Nuccilli, F., Nunez, C., Paschalidis, N., Persyn, S., Piazza, D., Oja, M., Ryno, J., Schmidt, W., Scheer, J. A., Shestakov, A., Shuvalov, S., Seki, K., Selci, S., Smith, K., Sordini, R., Svensson, J., Szalai, L., Toublanc, D., Urdiales, C., Varsani, A., Vertolli, N., Wallner, R., Wahlstroem, P., Wilson, P., and Zampieri, S.

Published
2021
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13. Investigating Mercury’s Environment with the Two-Spacecraft BepiColombo Mission

Author

Milillo, A., Fujimoto, M., Murakami, G., Benkhoff, J., Zender, J., Aizawa, S., Dósa, M., Griton, L., Heyner, D., Ho, G., Imber, S. M., Jia, X., Karlsson, T., Killen, R. M., Laurenza, M., Lindsay, S. T., McKenna-Lawlor, S., Mura, A., Raines, J. M., Rothery, D. A., André, N., Baumjohann, W., Berezhnoy, A., Bourdin, P. A., Bunce, E. J., Califano, F., Deca, J., de la Fuente, S., Dong, C., Grava, C., Fatemi, S., Henri, P., Ivanovski, S. L., Jackson, B. V., James, M., Kallio, E., Kasaba, Y., Kilpua, E., Kobayashi, M., Langlais, B., Leblanc, F., Lhotka, C., Mangano, V., Martindale, A., Massetti, S., Masters, A., Morooka, M., Narita, Y., Oliveira, J. S., Odstrcil, D., Orsini, S., Pelizzo, M. G., Plainaki, C., Plaschke, F., Sahraoui, F., Seki, K., Slavin, J. A., Vainio, R., Wurz, P., Barabash, S., Carr, C. M., Delcourt, D., Glassmeier, K.-H., Grande, M., Hirahara, M., Huovelin, J., Korablev, O., Kojima, H., Lichtenegger, H., Livi, S., Matsuoka, A., Moissl, R., Moncuquet, M., Muinonen, K., Quèmerais, E., Saito, Y., Yagitani, S., Yoshikawa, I., and Wahlund, J.-E.

Published
2020
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14. The CAESAR Project for the ASI Space Weather Infrastructure

Author

Laurenza, M., primary, Del Moro, D., additional, Alberti, T., additional, Battiston, R., additional, Benella, S., additional, Benvenuto, F., additional, Berrilli, F., additional, Bertello, I., additional, Bertucci, B., additional, Biasiotti, L., additional, Campi, C., additional, Carbone, V., additional, Casolino, M., additional, Cecchi Pestellini, C., additional, Chiappetta, F., additional, Coco, I., additional, Colombo, S., additional, Consolini, G., additional, D’Amicis, R., additional, De Gasperis, G., additional, De Marco, R., additional, Del Corpo, A., additional, Diego, P., additional, Di Felice, V., additional, Di Fino, L., additional, Di Geronimo, C., additional, Faldi, F., additional, Ferrente, F., additional, Feruglio, C., additional, Fiandrini, E., additional, Fiore, F., additional, Foldes, R., additional, Formato, V., additional, Francisco, G., additional, Giannattasio, F., additional, Giardino, M., additional, Giobbi, P., additional, Giovannelli, L., additional, Giusti, M., additional, Gorgi, A., additional, Heilig, B., additional, Iafrate, G., additional, Ivanovski, S. L., additional, Jerse, G., additional, Korsos, M. B., additional, Lepreti, F., additional, Locci, D., additional, Magnafico, C., additional, Mangano, V., additional, Marcucci, M. F., additional, Martucci, M., additional, Massetti, S., additional, Micela, G., additional, Milillo, A., additional, Miteva, R., additional, Molinaro, M., additional, Mugatwala, R., additional, Mura, A., additional, Napoletano, G., additional, Narici, L., additional, Neubüser, C., additional, Nisticò, G., additional, Pauluzzi, M., additional, Perfetti, A., additional, Perri, S., additional, Petralia, A., additional, Pezzopane, M., additional, Piersanti, M., additional, Pietropaolo, E., additional, Pignalberi, A., additional, Plainaki, C., additional, Polenta, G., additional, Primavera, L., additional, Romoli, G., additional, Rossi, M., additional, Santarelli, L., additional, Santi Amantini, G., additional, Siciliano, F., additional, Sindoni, G., additional, Spadoni, S., additional, Sparvoli, R., additional, Stumpo, M., additional, Tomassetti, N., additional, Tozzi, R., additional, Vagelli, V., additional, Vasantharaju, N., additional, Vecchio, A., additional, Vellante, M., additional, Vernetto, S., additional, Vigorito, C., additional, West, M. J., additional, Zimbardo, G., additional, Zucca, P., additional, Zuccarello, F., additional, and Zuccon, P., additional

Published
2023
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15. High-energy particle enhancements in the solar wind upstream Mercury during the first BepiColombo flyby: SERENA/PICAM and MPO-MAG observations

Author

Alberti, T., primary, Sun, W., additional, Varsani, A., additional, Heyner, D., additional, Orsini, S., additional, Milillo, A., additional, Slavin, J. A., additional, Raines, J. M., additional, Aronica, A., additional, Auster, H.-U., additional, Barabash, S., additional, De Angelis, E., additional, Dandouras, I., additional, Jarvinen, R., additional, Jeszenszky, H., additional, Kallio, E., additional, Kazakov, A., additional, Laky, G., additional, Livi, S., additional, Mangano, V., additional, Massetti, S., additional, Moroni, M., additional, Mura, A., additional, Noschese, R., additional, Plainaki, C., additional, Plaschke, F., additional, Richter, I., additional, Rispoli, R., additional, Sordini, R., additional, and Wurz, P., additional

Published
2023
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17. The CAESAR Project for the ASI Space Weather Infrastructure

Author

Laurenza, M., Del Moro, D., Alberti, T., Battiston, R., Benella, S., Benvenuto, F., Berrilli, F., Bertello, I., Bertucci, B., Biasiotti, L., Campi, C., Carbone, V., Casolino, M., Cecchi Pestellini, C., Chiappetta, F., Coco, I., Colombo, S., Consolini, G., D’Amicis, R., De Gasperis, G., De Marco, R., Del Corpo, A., Diego, P., Di Felice, V., Di Fino, L., Di Geronimo, C., Faldi, F., Ferrente, F., Feruglio, C., Fiandrini, E., Fiore, F., Foldes, R., Formato, V., Francisco, G., Giannattasio, F., Giardino, M., Giobbi, P., Giovannelli, L., Giusti, M., Gorgi, A., Heilig, B., Iafrate, G., Ivanovski, S. L., Jerse, G., Korsos, M. B., Lepreti, F., Locci, D., Magnafico, C., Mangano, V., Marcucci, M. F., Martucci, M., Massetti, S., Micela, G., Milillo, A., Miteva, R., Molinaro, M., Mugatwala, R., Mura, A., Napoletano, G., Narici, L., Neubüser, C., Nisticò, G., Pauluzzi, M., Perfetti, A., Perri, S., Petralia, A., Pezzopane, M., Piersanti, M., Pietropaolo, E., Pignalberi, A., Plainaki, C., Polenta, G., Primavera, L., Romoli, G., Rossi, M., Santarelli, L., Santi Amantini, G., Siciliano, F., Sindoni, G., Spadoni, S., Sparvoli, R., Stumpo, M., Tomassetti, N., Tozzi, R., Vagelli, V., Vasantharaju, N., Vecchio, A., Vellante, M., Vernetto, S., Vigorito, C., West, M. J., Zimbardo, G., Zucca, P., and Zuccon, F. Zuccarell and P.

Subjects
and a total of 92 researchers. The CAESAR approach encompasses the whole chain of phenomena from the Sun to Earth up to planetary environments in a multidisciplinary, and will integrate currently available international SWE assets to foster scientific studies and advance forecasting capabilities, which aims to tackle the relevant aspects of Space Weather (SWE) science and develop a prototype of the scientific data centre for SpaceWeather of the Italian Space Agency (ASI) called ASPIS (ASI SPaceWeather InfraStructure). To this end, models), an interface, and a wiki-like documentation structure. The DB will be accessed through both a Web graphical interface and the ASPIS.py module, a library of functions in Python, which exhibit noticeable SWE characteristics from several SWE perspectives. CAESAR investigations synergistically exploit a great variety of different products (datasets, CAESAR involves the majority of the SWE Italian community, codes, comprehensive, This paper presents the project Comprehensive spAce wEather Studies for the ASPIS prototype Realization (CAESAR), bringing together 10 Italian institutions as partners, both long-standing and novel, i.e, This paper presents the project Comprehensive spAce wEather Studies for the ASPIS prototype Realization (CAESAR), which aims to tackle the relevant aspects of Space Weather (SWE) science and develop a prototype of the scientific data centre for SpaceWeather of the Italian Space Agency (ASI) called ASPIS (ASI SPaceWeather InfraStructure). To this end, CAESAR involves the majority of the SWE Italian community, bringing together 10 Italian institutions as partners, and a total of 92 researchers. The CAESAR approach encompasses the whole chain of phenomena from the Sun to Earth up to planetary environments in a multidisciplinary, comprehensive, and unprecedented way. Detailed and integrated studies are being performed on a number of well-observed “target SWE events”, which exhibit noticeable SWE characteristics from several SWE perspectives. CAESAR investigations synergistically exploit a great variety of different products (datasets, codes, models), both long-standing and novel, that will be made available in the ASPIS prototype: this will consist of a relational database (DB), an interface, and a wiki-like documentation structure. The DB will be accessed through both a Web graphical interface and the ASPIS.py module, i.e., a library of functions in Python, which will be available for download and installation. The ASPIS prototype will unify multiple SWE resources through a flexible and adaptable architecture, and will integrate currently available international SWE assets to foster scientific studies and advance forecasting capabilities, that will be made available in the ASPIS prototype: this will consist of a relational database (DB), and unprecedented way. Detailed and integrated studies are being performed on a number of well-observed “target SWE events”, which will be available for download and installation. The ASPIS prototype will unify multiple SWE resources through a flexible and adaptable architecture
Published
2023

20. Energetic neutral particles detection in the environment of Jupiter’s icy moons: Ganymede’s and Europa’s neutral imaging experiment (GENIE)

Author

Milillo, A., Orsini, S., Plainaki, C., Fierro, D., Argan, A., Vertolli, N., Dandouras, I., Leoni, R., Liemohn, M.W., Scheer, J., Selci, S., Soffitta, P., Baragiola, R.A., Brienza, D., Cassidy, T.A., Chassela, O., Colasanti, L., D'Alessandro, M., Daglis, I., De Angelis, E., Del Monte, E., Di Lellis, A.M., Di Persio, G., Fabiani, S., Gaggero, A., Ganushkina, N., Garnier, P., Gilbert, J.A., Hansen, K.C., Hsieh, K.C., Lazzarotto, F., Lepri, S.T., Mangano, V., Massetti, S., Mattioli, F., Mura, A., Palumbo, M.E., Rispoli, R., Rossi, M., Rubini, A., Teolis, B., Tosi, F., Tosti, D., and Toublanc, D.

Published
2013
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24. Meteoroids as a Source for Mercury’s Calcium exosphere

Author

Moroni, Martina, Milillo, A., Mura, A., Andre’, N., Mangano, V., Plainaki, C., Massetti, S., Orsini, S., Aronica, A., De Angelis, E., Rispoli, R., Sordini, R., Kazakov, A., and Del Moro, D.

Subjects
impact processes, Mercury, Mercury, Exosphere, impact processes, Exosphere
Published
2022

25. Micro-meteoroids impact vaporization (MMIV) on Mercury surface

Author

Moroni, Martina, Milillo, A., Mura, A., Andrè, N., Mangano, V., Massetti, S., Orsini, S., Aronica, A., DE Angelis, E., Rispoli, R., Sordini, R., Kazakov, A., and Plainaki, C.

Subjects
Impact processes, Mercury exosphere, Mercury exosphere, Impact processes
Published
2022

29. Correction to: SERENA: Particle Instrument Suite for Determining the Sun-Mercury Interaction from BepiColombo (Space Science Reviews, (2021), 217, 1, (11), 10.1007/s11214-020-00787-3)

Author

Orsini, S. Livi, S.A. Lichtenegger, H. Barabash, S. Milillo, A. De Angelis, E. Phillips, M. Laky, G. Wieser, M. Olivieri, A. Plainaki, C. Ho, G. Killen, R.M. Slavin, J.A. Wurz, P. Berthelier, J.-J. Dandouras, I. Kallio, E. McKenna-Lawlor, S. Szalai, S. Torkar, K. Vaisberg, O. Allegrini, F. Daglis, I.A. Dong, C. Escoubet, C.P. Fatemi, S. Fränz, M. Ivanovski, S. Krupp, N. Lammer, H. Leblanc, F. Mangano, V. Mura, A. Nilsson, H. Raines, J.M. Rispoli, R. Sarantos, M. Smith, H.T. Szego, K. Aronica, A. Camozzi, F. Di Lellis, A.M. Fremuth, G. Giner, F. Gurnee, R. Hayes, J. Jeszenszky, H. Tominetti, F. Trantham, B. Balaz, J. Baumjohann, W. Brienza, D. Bührke, U. Bush, M.D. Cantatore, M. Cibella, S. Colasanti, L. Cremonese, G. Cremonesi, L. D’Alessandro, M. Delcourt, D. Delva, M. Desai, M. Fama, M. Ferris, M. Fischer, H. Gaggero, A. Gamborino, D. Garnier, P. Gibson, W.C. Goldstein, R. Grande, M. Grishin, V. Haggerty, D. Holmström, M. Horvath, I. Hsieh, K.-C. Jacques, A. Johnson, R.E. Kazakov, A. Kecskemety, K. Krüger, H. Kürbisch, C. Lazzarotto, F. Leblanc, F. Leichtfried, M. Leoni, R. Loose, A. Maschietti, D. Massetti, S. Mattioli, F. Miller, G. Moissenko, D. Morbidini, A. Noschese, R. Nuccilli, F. Nunez, C. Paschalidis, N. Persyn, S. Piazza, D. Oja, M. Ryno, J. Schmidt, W. Scheer, J.A. Shestakov, A. Shuvalov, S. Seki, K. Selci, S. Smith, K. Sordini, R. Svensson, J. Szalai, L. Toublanc, D. Urdiales, C. Varsani, A. Vertolli, N. Wallner, R. Wahlstroem, P. Wilson, P. Zampieri, S.

Subjects
GeneralLiterature_INTRODUCTORYANDSURVEY
Abstract

The original online version of this article was revised because a number of authors had the wrong affiliation number next to their names. © 2021, Springer Nature B.V.

Published
2021

31. ENA detection in the dayside of Mars: ASPERA-3 NPD statistical study

Author

Mura, A., Orsini, S., Milillo, A., Kallio, E., Galli, A., Barabash, S., Wurz, P., Grigoriev, A., Futaana, Y., Andersson, H., Lundin, R., Yamauchi, M., Fraenz, M., Krupp, N., Woch, J., Asamura, K., Coates, A.J., Curtis, C.C., Hsieh, K.C., Sandel, B.R., Fedorov, A., Grande, M., Koskinen, H., Kozyra, J.U., Luhmann, J.G., McKenna-Lawlor, S., Cerulli-Irelli, R., D’Amicis, R., Maggi, M., Massetti, S., Roelof, E.C., Brandt, P.C., Winningham, D.J., Frahm, R.A., and Sharber, J.R.

Published
2008
Full Text
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33. Detection of a southern peak in Mercury's sodium exosphere with the TNG in 2005

Author

Mangano, V., Leblanc, F., Barbieri, C., Massetti, S., Milillo, A., Cremonese, G., and Grava, C.

Subjects
Planetary meteorology -- Spectra, Planetary meteorology -- Analysis, Weather -- Analysis, Astronomy -- Spectra, Astronomy -- Analysis, Atmosphere -- Analysis, Earth -- Atmosphere, Earth -- Analysis, Astronomy, Earth sciences
Abstract

To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.icarus.2009.01.016 Byline: V. Mangano (a), F. Leblanc (b), C. Barbieri (c), S. Massetti (a), A. Milillo (a), G. Cremonese (d), C. Grava (c) Keywords: Mercury; atmosphere; Spectroscopy Abstract: A long term plan of observations of the sodium exosphere of Mercury began in 2002 by using the high resolution echelle spectrograph SARG and a devoted sodium filter at the 3.5 m Galileo National Telescope (TNG) located in La Palma, Canary Islands. This program is meant to investigate the variations of the sodium exosphere appearance under different conditions of observations, namely Mercury's position along its orbit, phase angle and different solar conditions, as reported by previous observations in August 2002 and August 2003 [Barbieri, C., Verani, S., Cremonese, G., Sprague, A., Mendillo, M., Cosentino, R., Hunten, D., 2004. Planet. Space Sci. 52, 1169-1175; Leblanc, F., Barbieri, C., Cremonese, G., Verani, S., Cosentino, R., Mendillo, M., Sprague, A., Hunten, D., 2006. Icarus 185 (2), 395-402]. Here we present the analysis of data taken in June 29th and 30th and in July 1st 2005, when Mercury's true anomaly angle (TAA) was in the range 124-130[degrees]. The spectra show particularly intense sodium lines with a distinctive peak in emission localized in the southern hemisphere at mid-latitudes. This seems to be a persistent feature related to consecutive favorable IMF conditions inducing localized enhancements of surface sodium density. The comparison with previous data taken by Potter et al. [Potter, A.E., Killen, R.M., Morgan, T.H., 2002. Meteorit. Planet. Sci. 37 (9), 1165-1172] evidences a surprising consistency of the anti-sunward component, which appears to remain constant regardless of the changing illumination and space weather conditions at Mercury. Author Affiliation: (a) INAF-Istituto di Fisica dello Spazio Interplanetario, via Fosso del Cavaliere 100, 00133 Roma, Italy (b) Service d'Aeronomie, IPSL/CNRS, Universite Versailles Saint Quentin, Paris, France (c) Department of Astronomy, University of Padova, vicolo Osservatorio 2, 35122 Padova, Italy (d) INAF-Osservatorio Astronomico di Padova, 35122 Padova, Italy Article History: Received 18 November 2008; Revised 27 January 2009; Accepted 29 January 2009

Published
2009

37. Surface-Exosphere-Magnetosphere System Of Mercury

Author

Milillo, A., Wurz, P., Orsini, S., Delcourt, D., Kallio, E., KILLEN, R. M., Lammer, H., Massetti, S., Mura, A., Barabash, S., Cremonese, G., Daglis, I. A., De Angelis, E., Di Lellis, A. M., Livi, S., Mangano, V., and Torkar, K.

Published
2005
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38. Dayside H.sup.+ circulation at Mercury and neutral particle emission

Author

Mura, A., Orsini, S., Milillo, A., Delcourt, D., Massetti, S., and De Angelis, E.

Subjects
Astronomy, Earth sciences
Abstract

To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.icarus.2004.12.010 Byline: A. Mura (a), S. Orsini (a), A. Milillo (a), D. Delcourt (b), S. Massetti (a), E. De Angelis (a) Abstract: In this study we discuss the proton circulation and the neutral atom emission at Mercury. The H.sup.+ distribution in space, energy and pitch angle has been simulated by means of a single-particle Monte Carlo model. The applied electric and magnetic field model has been parameterized to take into account different boundary conditions such as interplanetary magnetic field and cross-tail potential drop. Particular attention has been paid to the estimation of the surface-sputtered neutral atoms and the energetic neutral atoms generated via charge-exchange process. The peculiar configuration of the hermean magnetosphere, as it is expected after the Mariner-10 observation of a weak magnetic field, allows a significant part of the incoming solar wind to enter Mercury's environment. For the B.sub.z Author Affiliation: (a) Istituto di Fisica dello Spazio Interplanetario, Via del Fosso del Cavaliere 100, 00133 Roma, Italy (b) CETP-CNRS, Saint Maurice des Fosses, France

Published
2005

39. Mapping of the cusp plasma precipitation on the surface of Mercury

Author

Massetti, S., Orsini, S., Milillo, A., Mura, A., De Angelis, E., Lammer, H., and Wurz, P.

Subjects
Mercury (Planet) -- Research, Solar wind -- Research, Astronomy, Earth sciences
Abstract

The presence of a magnetosphere around Mercury plays a fundamental role on the way the solar wind plasma interacts with the planet. Since the observations suggest that Mercury should occupy a large fraction of its magnetosphere and because of lack of an atmosphere, significant differences in solar wind-magnetosphere coupling are expected to exist with respect to the Earth case. On the basis of a modified Tsyganenko T96 model we describe the geometry of the magnetic field that could characterize Mercury, and its response to the variations of the impinging solar wind and of the interplanetary magnetic field. The investigation is focused on the shape and dimension of the open magnetic field regions (cusps) that allow the direct penetration of magnetosheath plasma through the exosphere of Mercury, down to its surface. The precipitating particle flux and energy are evaluated as a function of the open field line position, according to different solar wind conditions. A target of this study is the evaluation of the sputtered particles from the crust of the planet, and their contribution to the exospheric neutral particle populations. Such estimates are valuable in the frame of a neutral particle analyser to be proposed on board of the ESA/BepiColombo mission. Keywords: Mercury; Magnetosphere; Solar wind; Magnetic field

Published
2003

40. The variability of Mercury's exosphere by particle and radiation induced surface release processes

Author

Lammer, H., Wurz, P., Patel, M.R., Killen, R., Kolb, C., Massetti, S., Orsini, S., and Milillo, A.

Subjects
Mercury (Planet) -- Research, Astronomy, Earth sciences
Abstract

Mercury's close orbit around the Sun, its weak intrinsic magnetic field and the absence of an atmosphere ([P.sub.surface] < 1 x [10.sup.-8] Pa) results in a strong direct exposure of the surface to energetic ions, electrons and UV radiation. Thermal processes and particle-surface-collisions dominate the surface interaction processes leading to surface chemistry and physics, including the formation of an exosphere (N [less than or equal to] [10.sup.14] [cm.sup.-2]) in which gravity is the dominant force affecting the trajectories of exospheric atoms. NASA's Mariner 10 spacecraft observed the existence of H, He, and O in Mercury's exosphere. In addition, the volatile components Na, K, and Ca have been observed by ground based instrumentation in the exosphere. We study the efficiency of several particle surface release processes by calculating stopping cross-sections, sputter yields and exospheric source rates. Our study indicates surface sputter yields for Na between values of about 0.27 and 0.35 in an energy range from 500 eV up to 2 keV if [Na.sup.+] ions are the sputter agents, and about 0.037 and 0.082 at an energy range between 500 eV up to 2 keV when [H.sup.+] are the sputter agents and a surface binding energy of about 2 eV to 2.65 eV. The sputter yields for Ca are about 0.032 to 0.06 and for K atoms between 0.054 to 0.1 in the same energy range. We found a sputter yield for O atoms between 0.025 and 0.04 for a particle energy range between 500 eV up to 2 keV protons. By taking the average solar wind proton surface flux at the open magnetic field line area of about 4 x [10.sup.8] [cm.sup.-2] [s.sup.-1] calculated by Massetti et al. (2003, Icarus, in press) the resulting average sputtering flux for O is about 0.8-1.0 x [10.sup.7] [cm.sup.-2] [s.sup.-1] and for Na approximately 1.3-1.6 x [10.sup.5] [cm.sup.-2] [s.sup.-1] depending on the assumed Na binding energies, regolith content, sputtering agents and solar activity. By using lunar regolith values for K we obtain a sputtering flux of about 1.0-1.4 x [10.sup.4] [cm.sup.-2] [s.sup.-1]. By taking an average open magnetic field line area of about 2.8 x [10.sup.16] [cm.sup.2] modelled by Massetti et al. (2003, Icarus, in press) we derive an average surface sputter rate for Na of about 4.2 x [10.sup.21] [s.sup.-1] and for O of about 2.5 x [10.sup.23] [s.sup.-1]. The particle sputter rate for K atoms is about 3.0 x [10.sup.20] [s.sup.-1] assuming lunar regolith composition for K. The sputter rates depend on the particle content in the regolith and the open magnetic field line area on Mercury's surface. Further, the surface layer could be depleted in alkali. A UV model has been developed to yield the surface UV irradiance at any time and latitude over a Mercury year. Seasonal and diurnal variations are calculated, and Photon Stimulated Desorption (PSD) fluxes along Mercury's orbit are evaluated. A solar UV hotspot is created towards perihelion, with significant average PSD particle release rates and Na fluxes of about 3.0 x [10.sup.6] [cm.sup.-2] [s.sup.-1]. The average source rates for Na particles released by PSD are about 1 x [10.sup.24] [s.sup.-1]. By using the laboratory obtained data of Madey et al. (1998, J. Geophys. Res. 103, 5873-5887) for the calculation of the PSD flux of K atoms we get fluxes in the order of about [10.sup.4] [cm.sup.-2] [s.sup.-1] along Mercury's orbit. However, these values may be to high since they are based on idealized smooth surface conditions in the laboratory and do not include the roughness and porosity of Mercury's regolith. Further, the lack of an ionosphere and Mercury's small, temporally and spatially highly variable magnetosphere can result in a large and rapid increase of exospheric particles, especially Na in Mercury's exosphere. Our study suggests that the average total source rates for the exosphere from solar particle and radiation induced surface processes during quiet solar conditions may be of the same order as particles produced by micrometeoroid vaporization. We also discuss the capability of in situ measurements of Mercury's highly variable particle environment by the proposed NPA-SERENA instrument package on board ESA's BepiColombo Mercury Planetary Orbiter (MPO).

Published
2003

46. Dome C East radar: Preliminary analysis of echo statistics

Author

Marcucci, M, Coco, I, Massetti, S., Longo, S, Biondi, D, Simeoli, E, Marchaudon, Aurélie, Koustov, A., Pallocchia, G., Consolini, G., Laurenza, M, Istituto Nazionale di Astrofisica (INAF), Istituto Nazionale di Geofisica e Vulcanologia - Sezione di Roma (INGV), Istituto Nazionale di Geofisica e Vulcanologia, Istituto di Fisica dello Spazio Interplanetario (INAF), Consiglio Nazionale delle Ricerche [Roma] (CNR), Institut de recherche en astrophysique et planétologie (IRAP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Department of Physics and Engineering Physics, University of Saskatchewan [Saskatoon] (U of S), Istituto di Fisica dello Spazio Interplanetario (IFSI), Consiglio Nazionale delle Ricerche (CNR), National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), and Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics::Popular Physics, Computer Science::Graphics, [SDU.ASTR.SR]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR], Physics::Space Physics, [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP], Physics::Atmospheric and Oceanic Physics, [PHYS.PHYS.PHYS-SPACE-PH]Physics [physics]/Physics [physics]/Space Physics [physics.space-ph], Physics::Geophysics
Abstract

International audience; Ionospheric echo occurrence rates for the Dome C East Super Dual Auroral Radar Network radar are presented with a focus on seasonal and solar cycle effects.

Published
2018

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