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23 results on '"Giuppi, S."'

1. Radar evidence of subglacial liquid water on Mars

Author

Orosei, R., Lauro, S. E., Pettinelli, E., Cicchetti, A., Coradini, M., Cosciotti, B., Di Paolo, F., Flamini, E., Mattei, E., Pajola, M., Soldovieri, F., Cartacci, M., Cassenti, F., Frigeri, A., Giuppi, S., Martufi, R., Masdea, A., Mitri, G., Nenna, C., Noschese, R., Restano, M., and Seu, R.

Subjects
Astrophysics - Earth and Planetary Astrophysics
Abstract

The presence of liquid water at the base of the Martian polar caps has long been suspected but not observed. We surveyed the Planum Australe region using the Mars Advanced Radar for Subsurface and Ionosphere Sounding, a low-frequency radar on the Mars Express spacecraft. Radar profiles collected between May 2012 and December 2015, contain evidence of liquid water trapped below the ice of the South Polar Layered Deposits. Anomalously bright subsurface reflections were found within a well-defined, 20km wide zone centered at 193{\deg}E, 81{\deg}S, surrounded by much less reflective areas. Quantitative analysis of the radar signals shows that this bright feature has high dielectric permittivity >15, matching water-bearing materials. We interpret this feature as a stable body of liquid water on Mars., Comment: 27 pages, 10 figures

Published
2020
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2. Radar evidence of subglacial liquid water on Mars

Author

Orosei, R., Lauro, S. E., Pettinelli, E., Cicchetti, A., Coradini, M., Cosciotti, B., Di Paolo, F., Flamini, E., Mattei, E., Pajola, M., Soldovieri, F., Cartacci, M., Cassenti, F., Frigeri, A., Giuppi, S., Martufi, R., Masdea, A., Mitri, G., Nenna, C., Noschese, R., Restano, M., and Seu, R.

Published
2018

5. The diurnal cycle of water ice on comet 67P/Churyumov-Gerasimenko

Author

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

Subjects
Water cycle -- Natural history -- Observations, Comets -- Natural history -- Observations, Environmental issues, Science and technology, Zoology and wildlife conservation
Abstract

Author(s): M. C. De Sanctis (corresponding author) [1]; F. Capaccioni [1]; M. Ciarniello [1]; G. Filacchione [1]; M. Formisano [1]; S. Mottola [2]; A. Raponi [1]; F. Tosi [1]; D. [...]

Published
2015
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8. Exposed water ice on the nucleus of comet 67P/Churyumov–Gerasimenko

Author

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

Published
2016
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9. The organic-rich surface of comet 67P/Churyumov-Gerasimenko as seen by VIRTIS/Rosetta

Author

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

Published
2015

10. The Surface Composition and Temperature of Asteroid 21 Lutetia As Observed by Rosetta/VIRTIS

Author

Coradini, A., Capaccioni, F., Erard, S., Arnold, G., De Sanctis, M. C., Filacchione, G., Tosi, F., Barucci, M. A., Capria, M. T., Ammannito, E., Grassi, D., Piccioni, G., Giuppi, S., Bellucci, G., Benkhoff, J., Bibring, J. P., Blanco, A., Blecka, M., Bockelee-Morvan, D., Carraro, F., Carlson, R., Carsenty, U., Cerroni, P., Colangeli, L., Combes, M., Combi, M., Crovisier, J., Drossart, P., Encrenaz, E. T., Federico, C., Fink, U., Fonti, S., Giacomini, L., Ip, W. H., Jaumann, R., Kuehrt, E., Langevin, Y., Magni, G., McCord, T., Mennella, V., Mottola, S., Neukum, G., Orofino, V., Palumbo, P., Schade, U., Schmitt, B., Taylor, F., Tiphene, D., and Tozzi, G.

Published
2011
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11. Fatigue Stress Detection of VIRTIS Cryocoolers On Board Rosetta

Author

Giuppi, S., Capaccioni, Fabrizio, Filacchione, Gianrico, Piccioni, Giuseppe, Politi, Romolo, Erard, Stéphane, Tosi, Federico, Capria, Maria Teresa, Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Pôle Planétologie du LESIA, Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics (LESIA), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)

Subjects
[SDU]Sciences of the Universe [physics], [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience

Published
2015

12. Marsis Data Inversion Approach: Preliminary Results on Mars South Polar Region

Author

Picardi, G., Biccari, D., Cartacci, M., Cicchetti, A., Giuppi, S., Marini, A., Masdea, A., Noschese, R., Piccari, F., Seu, R., Plaut, J., Johnson, W., Kirchner, D., Jordan, R., Safaeinili, A., Federico, C., Frigeri, A., Melacci, P., Orosei, R., Bombaci, O., Calabrese, D., Zampolini, E., Edenhofer, P., Plettemeier, D., Marinangeli, L., Hagfors, T., Flamini, E., Vannaroni, G., Nielsen, E., Williams, I., Gurnett, D., Huff, R., PETTINELLI, Elena, Picardi, G., Biccari, D., Cartacci, M., Cicchetti, A., Giuppi, S., Marini, A., Masdea, A., Noschese, R., Piccari, F., Seu, R., Plaut, J., Johnson, W., Kirchner, D., Jordan, R., Safaeinili, A., Federico, C., Frigeri, A., Melacci, P., Orosei, R., Bombaci, O., Calabrese, D., Zampolini, E., Edenhofer, P., Plettemeier, D., Marinangeli, L., Pettinelli, Elena, Hagfors, T., Flamini, E., Vannaroni, G., Nielsen, E., Williams, I., Gurnett, D., and Huff, R.

Published
2007

13. The SHAllow RADar (SHARAD) Experiment, a subsurface sounding radar for MRO

Author

Seu, R., Biccari, D., Cartacci, M., Cicchetti, A., Fuga, O., Giuppi, S., Masdea, A., Noschese, R., Picardi, G., Federico, Costanzo, Frigeri, A., Melacci, Pietro Tito, Orosei, R., Croci, R., Guelfi, M., Calabrese, D., Zampolini, E., Marinangeli, L., Pettinelli, E., Flamini, E., Vannaroni, G., Seu, R., Biccari, D., Cartacci, M., Cicchetti, A., Fuga, O., Giuppi, S., Masdea, A., Noschese, R., Picardi, G., Federico, C., Frigeri, A., Melacci, P. T., Orosei, R., Croci, R., Guelfi, M., Calabrese, D., Zampolini, E., Marinangeli, L., Pettinelli, Elena, Flamini, E., and Vannaroni, G.

Subjects
radar, mars, subsurface
Published
2007

14. Permittivity estimation of layers beneath the northern polar layered deposits, Mars

Author

Lauro SE, Mattei E, Pettinelli E, Soldovieri F, Orosei R, Cartacci M, Cicchetti A, Noschese R, and Giuppi S

Subjects
SUBSURFACE, SURFACE
Abstract

Martian Polar Layered Deposits, most likely dusty ice are transparent to radar waves. In the North Pole bedrock has been detected by MARSIS up to a depth about 2 Km, whereas in the South Pole such interface has been located at about 3.7 Km. The reflected signal is generally above the noise and can be used to estimate the dielectric properties of the bedrock. Assuming the permittivity of the first layer is known, we use a simplified inversion method to extract the bedrock relative dielectric permittivity as 4-9 below the North PLD's. These values are coherent with the basalt nature and so the approach could be used to identify the lithology beneath the Martian Poles.

Published
2010

15. MARS EXPRESS: MARSIS observations over the polar deposits of Mars

Author

Biccari, D., Cartacci, M., Edenhofer, P., Federico, Costanzo, Flamini, E., Frigeri, A., Giuppi, S., Heggy, E., Ivanov, A., Kofman, W., Marinangeli, L., Nielsen, E., Noschese, R., Ori, G., Orosei, R., Pettinelli, E., Picardi, G., Plaut, J., Plettemeier, D., Safaenili, A., Seu, R., Vannaroni, G., Watters, T., and Zhenfei, Z.

Subjects
mars polar deposits marsis
Published
2007

18. MARSIS data inversion approach: Preliminary results

Author

Picardi, G., primary, Biccari, D., additional, Cartacci, M., additional, Cicchetti, A., additional, Giuppi, S., additional, Marini, A., additional, Masdea, A., additional, Noschese, R., additional, Piccari, F., additional, Seu, R., additional, Plaut, J.J., additional, Johnson, W.T.K., additional, Jordan, R.L., additional, Safaeinili, A., additional, Federico, C., additional, Frigeri, A., additional, Melacci, P.T., additional, Orosei, R., additional, Bombaci, O., additional, Calabrese, D., additional, Zampolini, E., additional, Edenhofer, P., additional, Plettemeier, D., additional, Marinangeli, L., additional, Pettinelli, E., additional, Hagfors, T., additional, Flamini, E., additional, Vannaroni, G., additional, Nielsen, E., additional, Williams, I., additional, Gurnett, D. A., additional, Kirchner, D. L., additional, and Huff, R. L., additional

Published
2008
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19. MARSIS Data Inversion Approach

Author

Picardi, G., primary, Biccari, D., additional, Cartacci, M., additional, Cicchetti, A., additional, Giuppi, S., additional, Marini, A., additional, Masdea, A., additional, Noschese, R., additional, Piccari, F., additional, Seu, R., additional, Bombaci, O., additional, Calabrese, D., additional, Zampolini, E., additional, Pettinelli, E., additional, Federico, C., additional, Frigeri, A., additional, Melacci, P.T., additional, Orosei, R., additional, Marinangeli, L., additional, and Flamini, E., additional

Published
2007
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20. Spacecraft and payload data handling

Author

Zender, J., Delhaise, F., Arviset, C., Heather, D., Diaz Del Rio, J., Manaud, N., Vazquez Garcia, J., Hernandez, J., Ortiz, I., Dowson, J., Jeffers, S., Roatsch, T., Matz, K. -D, Poulleau, G., Langevin, Y., Gondet, B., Reberac, A., Daloze, J. F., Dimarellis, E., Ludmila Carone, Stanzet, C., D Amore, M., Orosei, R., Noschese, R., Cartacci, M., Giuppi, S., Huff, R., Johnson, R., Acton, C., Semenov, B., Guinness, E., and Slavney, S.

21. MARSIS data inversion approach: Preliminary results

Author

Raffaella Noschese, Tor Hagfors, Roberto Orosei, Marco Cartacci, Erling Nielsen, Dirk Plettemeier, W.T.K. Johnson, R. L. Huff, Giuliano Vannaroni, Alessandro Frigeri, Rolando L. Jordan, A. Masdea, J. J. Plaut, E. Zampolini, Elena Pettinelli, Costanzo Federico, Diego Calabrese, Stefano Giuppi, Daniela Biccari, Roberto Seu, A. Marini, O. Bombaci, Andrea Cicchetti, Ali Safaeinili, Peter Edenhofer, D. L. Kirchner, Enrico Flamini, D. A. Gurnett, Giovanni Picardi, P.T. Melacci, Lucia Marinangeli, F. Piccari, Iwan P. Williams, radar conference, Picardi, G., Biccari, D., Cartacci, M., Cicchetti, A., Giuppi, S., Marini, A., Masdea, A., Noschese, R., Piccari, F., Seu, R., Plaut, J. J., Johnson, W. T. K., Jordan, R. L., Safaeinili, A., Federico, C., Frigeri, A., Melacci, P. T., Orosei, R., Bombaci, O., Calabrese, D., Zampolini, E., Edenhofer, P., Plettemeier, D., Marinangeli, L., Pettinelli, Elena, Hagfors, T., Flamini, E., Vannaroni, G., Nielsen, E., Williams, I., Gurnett, D. A., Kirchner, D. L., and Huff, R. L.

Subjects
Inverse transform sampling, MARSIS, Inversion (meteorology), Mars Exploration Program, Geophysics, Exploration of Mars, law.invention, Depth sounding, law, Physics::Space Physics, Astrophysics::Earth and Planetary Astrophysics, Radar, Ionosphere, Geology, Remote sensing
Abstract

An approach to the inversion of the data available from the MARSIS (Mars Advanced Radar for Subsurface and Ionosphere Sounding) instrument on Mars Express is described. The data inversion gives an estimation of the materials composing the different detected interfaces, including the impurity (inclusion) of the first layer, if any, and its percentage, by the evaluation of the values of the permittivity that would generate the observed radio echoes. The data inversion method is based on the analysis of the surface to subsurface power ratio and the relative time delay as measured by MARSIS. The constraints, due to the known geological history of the surface, the local temperature and the thermal condition of the observed zones and the results of other instruments on Mars Express and other missions to Mars, have to be considered to improve the validity of the utilized models and the obtained results that are given in parametric way.

Published
2008

22. MARSIS Data Inversion Approach

Author

Costanzo Federico, Marco Cartacci, Daniela Biccari, Andrea Cicchetti, F. Piccari, Roberto Seu, P.T. Melacci, Giovanni Picardi, Enrico Flamini, Diego Calabrese, Elena Pettinelli, Roberto Orosei, E. Zampolini, Lucia Marinangeli, Raffaella Noschese, O. Bombaci, Stefano Giuppi, Alessandro Frigeri, A. Marini, A. Masdea, Picardi, G., Biccari, D., Cartacci, M., Cicchetti, A., Giuppi, S., Marini, A., Masdea, A., Noschese, R., Piccari, F., Seu, R., Bombaci, O., Calabrese, D., Zampolini, E., Pettinelli, Elena, Federico, C., Frigeri, A., Melacci, P. T., Orosei, R., Marinangeli, L., and Flamini, E.

Subjects
law, Martian surface, Mars Orbiter Laser Altimeter, Ground-penetrating radar, Surface roughness, Clutter, MARSIS, Mars Exploration Program, Radar, Geology, Remote sensing, law.invention
Abstract

In this paper we describe an inversion approach in order to analyze data from the MARSIS (Mars Advanced Radar for Subsurface and Ionosphere Sounding) instrument on Mars Express. The inversion process allows the dielectric constant of the subsurface material to be estimated provided the dielectric constant of the surface is known. In addition, if impurity are present, it is possible to estimate the dielectric constant of any inclusions as well as the percentage amount of material in the inclusions relative to the host material provided knowledge of the host material up to the depth where the interface has been detected is available. The data inversion method is based on the analysis of the surface to subsurface power ratio and the relative time delay as measured by MARSIS. The data inversion has been performed at several frequencies in order to estimate the frequency dependent parameters affecting the behavior of the radar echoes. It is necessary that the surface and subsurface interfaces have the same roughness in order to estimate the Subsurface Fresnel reflectivity. As a preliminary approach, only flat surface have been selected. MOLA (Mars Orbiter Laser Altimeter) has already provided detailed data on the visible Martian surface and a simulator, with a facet model, has been utilized to use MOLA data in order to verify the correct selection of the frames that will be used for the data inversion (absence of clutter echoes).

Published
2007

23. Cometary science. The organic-rich surface of comet 67P/Churyumov-Gerasimenko as seen by VIRTIS/Rosetta.

Author

Capaccioni F, Coradini A, Filacchione G, Erard S, Arnold G, Drossart P, De Sanctis MC, Bockelee-Morvan D, Capria MT, Tosi F, Leyrat C, Schmitt B, Quirico E, Cerroni P, Mennella V, Raponi A, Ciarniello M, McCord T, Moroz L, Palomba E, Ammannito E, Barucci MA, Bellucci G, Benkhoff J, Bibring JP, Blanco A, Blecka M, Carlson R, Carsenty U, Colangeli L, Combes M, Combi M, Crovisier J, Encrenaz T, Federico C, Fink U, Fonti S, Ip WH, Irwin P, Jaumann R, Kuehrt E, Langevin Y, Magni G, Mottola S, Orofino V, Palumbo P, Piccioni G, Schade U, Taylor F, Tiphene D, Tozzi GP, Beck P, Biver N, Bonal L, Combe JP, Despan D, Flamini E, Fornasier S, Frigeri A, Grassi D, Gudipati M, Longobardo A, Markus K, Merlin F, Orosei R, Rinaldi G, Stephan K, Cartacci M, Cicchetti A, Giuppi S, Hello Y, Henry F, Jacquinod S, Noschese R, Peter G, Politi R, Reess JM, and Semery A

Abstract

The VIRTIS (Visible, Infrared and Thermal Imaging Spectrometer) instrument on board the Rosetta spacecraft has provided evidence of carbon-bearing compounds on the nucleus of the comet 67P/Churyumov-Gerasimenko. The very low reflectance of the nucleus (normal albedo of 0.060 ± 0.003 at 0.55 micrometers), the spectral slopes in visible and infrared ranges (5 to 25 and 1.5 to 5% kÅ(-1)), and the broad absorption feature in the 2.9-to-3.6-micrometer range present across the entire illuminated surface are compatible with opaque minerals associated with nonvolatile organic macromolecular materials: a complex mixture of various types of carbon-hydrogen and/or oxygen-hydrogen chemical groups, with little contribution of nitrogen-hydrogen groups. In active areas, the changes in spectral slope and absorption feature width may suggest small amounts of water-ice. However, no ice-rich patches are observed, indicating a generally dehydrated nature for the surface currently illuminated by the Sun., (Copyright © 2015, American Association for the Advancement of Science.)

Published
2015
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