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491 results on '"Dehant, V"'

102. Network science landers for Mars

Author

Harri, A.-M., Marsal, O., Lognonne, P., Leppelmeier, G.W., Spohn, T., Glassmeier, K.-H., Angrilli, F., Banerdt, W.B., Barriot, J.P., Bertaux, J.-L., Berthelier, J.J., Calcutt, S., Cerisier, J.C., Crisp, D., Dehant, V., Giardini, D., Jaumann, R., Langevin, Y., Menvielle, M., Musmann, G., Pommereau, J.P., Di Pippo, S., Guerrier, D., Kumpulainen, K., Larsen, S., Mocquet, A., Polkko, J., Runavot, J., Schumacher, W., Siili, T., Simola, J., and Tillman, J.E.

Published
1999
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104. Instabilities induced by the precession of spherical shell

Author

Laguerre, R., Noir, J., Rekier, J., Triana, S., and Dehant, V.

Subjects
Física::Astronomia i astrofísica [Àrees temàtiques de la UPC], Dinamo, Teoria (Física còsmica), Dynamo theory (Cosmic physics)
Published
2016

105. VizieR Online Data Catalog: USNO Saturnian observations 1974-1998 (Robert+, 2016)

Author

Robert, V., Pascu, D., Lainey, V., Arlot, J.-E., de Cuyper, J.-P., Dehant, V., Thuillot, W., and bibliotheque, la.

Subjects
Positional data, Planets, [PHYS.ASTR] Physics [physics]/Astrophysics [astro-ph]
Abstract

Astrometric and measured data of Saturn, Mimas, Enceladus, Tethys, Dione, Rhea, Titan, Hyperion and Iapetus, taken with the U.S. Naval Observatory 26-inch refractor from 1974 to 1998. Astrometric (RA,DEC) positions are geocentric observed positions reduced from stars and refer to the ICRF. They were corrected for all instrumental and spherical effects, except for the light time propagation. Raw data with (x,y) positions of the stars and satellites are available on demand (Vincent Robert, vincent.robert(at)obspm.fr). (9 data files).

Published
2016

106. The future of planetary atmospheric, surface, and interior science using radio and laser links

Author

Asmar, Sami W., primary, Armstrong, J. W., additional, Atkmson, D. H., additional, Bell, D. J., additional, Bird, M. K., additional, Dehant, V., additional, Iess, L., additional, Lazio, T. J. W., additional, Lmscott, I. R., additional, Mannucci, A. J., additional, Mazarico, E., additional, Park, R. S., additional, Patzold, M., additional, Preston, R. A., additional, and Simpson, R. A., additional

Published
2017
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108. Internal Energy Dissipation in Enceladus's Subsurface Ocean FromTides and Libration and the Role of InertialWaves.

Author

Rekier, J., Trinh, A., Triana, S. A., and Dehant, V.

Subjects
ENCELADUS (Satellite), HEAT flow (Oceanography), NAVIER-Stokes equations, ENERGY dissipation, RESONANCE
Abstract

Enceladus is characterized by a south polar hot spot associated with a large outflow of heat, the source of which remains unclear.We compute the heat generated via viscous dissipation resulting from tidal and (longitudinal) libration forcing in the moon's subsurface ocean using the linearized Navier-Stokes equation in a three-dimensional spherical model.We conclude that libration is the dominant cause of dissipation at the linear order, providing up to ~0.001 GWof heat to the ocean, which remains insufficient to explain the ~10 GWobserved by Cassini.We also illustrate how resonances with inertial modes can significantly augment the dissipation. Our work is an extension to Rovira-Navarro et al. (2019, https://doi. org/10.1016/j.icarus.2018.11.010) to include the effects of libration and the presence of the icy crust. The model developed here is readily applicable to the study of other moons with a subsurface ocean and planets with a liquid core. [ABSTRACT FROM AUTHOR]

Published
2019
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109. Mars Express 10 years at Mars: Observations by the Mars Express Radio Science Experiment (MaRS)

Author

Paetzold, M., Haeusler, B., Tyler, G. L., Andert, T., Asmar, S. W., Bird, M. K., Dehant, V., Hinson, D. P., Rosenblatt, P., Simpson, R. A., Tellmann, S., Withers, P., Beuthe, M., Efimov, A. I., Hahn, M., Kahan, D., Le Maistre, S., Oschlisniok, J., Peter, K., Remus, S., Paetzold, M., Haeusler, B., Tyler, G. L., Andert, T., Asmar, S. W., Bird, M. K., Dehant, V., Hinson, D. P., Rosenblatt, P., Simpson, R. A., Tellmann, S., Withers, P., Beuthe, M., Efimov, A. I., Hahn, M., Kahan, D., Le Maistre, S., Oschlisniok, J., Peter, K., and Remus, S.

Abstract

The Mars Express spacecraft is operating in Mars orbit since early 2004. The Mars Express Radio Science Experiment (MaRS) employs the spacecraft and ground station radio systems (i) to conduct radio occultations of the atmosphere and ionosphere to obtain vertical profiles of temperature, pressure, neutral number densities and electron density, (ii) to conduct bistatic radar experiments to obtain information on the dielectric and scattering properties of the surface, (iii) to investigate the structure and variation of the crust and lithosphere in selected target areas, (iv) to determine the mass, bulk and internal structure of the moon Phobos, and (v) to track the MEX radio signals during superior solar conjunction to study the morphology of coronal mass ejections (CMEs). Here we report observations, results and discoveries made in the Mars environment between 2004 and 2014 over almost an entire solar cycle. (C) 2016 Elsevier Ltd. All rights reserved.

Published
2016

111. Inertial modes in near-spherical geometries.

Author

Rekier, J, Trinh, A, Triana, S A, and Dehant, V

Subjects
INERTIAL mass, NUMERICAL analysis, DISCRETIZATION methods, GEGENBAUER polynomials, EIGENVALUES
Abstract

We propose a numerical method to compute the inertial modes of a container with near-spherical geometry based on the fully spectral discretization of the angular and radial directions using spherical harmonics and Gegenbauer polynomial expansion, respectively. This allows to solve simultaneously the Poincaré equation and the no penetration condition as an algebraic polynomial eigenvalue problem. The inertial modes of an exact oblate spheroid are recovered to machine precision using an appropriate set of spheroidal coordinates. We show how other boundaries that deviate slightly from a sphere can be accommodated for with the technique of equivalent spherical boundary and we demonstrate the convergence properties of this approach for the triaxial ellipsoid. [ABSTRACT FROM AUTHOR]

Published
2019
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116. InSight: An Integrated Exploration of the Interior of Mars

Author

Banerdt, W.B., Smrekar, S.E., Alkalai, L., Hoffman, T., Warwick, R., Hurst, K., Folkner, W., Lognonne, P., Spohn, Tilman, Asmar, S., Banfield, D., Boschi, L., Christensen, U., Dehant, V., Giardini, D., Goetz, W., Golombek, M., Grott, M., Hudson, T.L., Johnson, C., Kargl, G., Kobayashi, N., Maki, J., Mimoun, D., Mocquet, A., Morgan, P., Panning, M., Pike, W.T., Tromp, J., van Zoest, Tim, Weber, R., Wieczorek, M., and Insight, Team

Subjects
mission, Institut für Raumfahrtsysteme, Planetenphysik, Institut für Planetenforschung, Explorationssysteme, Mars, interior, heat flow, InSight
Published
2012

117. Interior of Mars and its habitability

Author

Dehant, V., Mocquet, A., Al., Et, Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), and Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2011

118. Quantifying the Martian Geochemical Reservoirs Workshop

Author

Rivoldini, A., Hoolst T., Van, Verhoeven, O., Mocquet, A., Dehant, V., Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), and Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2011

119. Constraints on the interior structure and composition of Mars from geodesy

Author

Rivoldini, A., Hoolst T., Van, Verhoeven, O., Mocquet, A., Dehant, V., Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), and Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2011

121. Penetrators for in situ sub-surface investigations of Europa

Author

Gowen RA, Smith A, Fortes AD, Barber S, Brown P, Church P, Collinson G, Coates AJ, Collins G, Crawford IA, Dehant V, Chela-Flores J, Griffiths AD, Grindrod PM, Gurvits LI, Hagermann A, Hussmann H, Jaumann R, Jones AP, Joy KH, Karatekin O, Miljkovic K, and Pal

Subjects
sensor, microgavimeter, penetrators
Abstract

We present the scientific case for inclusion of penetrators into the Europan surface, and the candidate instruments which could significantly enhance the scientific return of the joint ESA/NASA Europa-Jupiter System Mission (EJSM). Moreover, a surface element would provide an exciting and inspirational mission highlight which would encourage public and political support for the mission. Whilst many of the EJSM science goals can be achieved from the proposed orbital platform, only surface elements can provide key exploration capabilities including direct chemical sampling and associated astrobiological material detection, and sensitive habitability determination. A targeted landing site of upwelled material could provide access to potential biological material originating from deep beneath the ice. Penetrators can also enable more capable geophysical investigations of Europa (and Ganymede) interior body structures, mineralogy, mechanical, magnetic, electrical and thermal properties. They would provide ground truth, not just for the orbital observations of Europa, but could also improve confidence of interpretation of observations of the other Jovian moons. Additionally, penetrators on both Europa and Ganymede, would allow valuable comparison of these worlds, and gather significant information relevant to future landed missions. The advocated low mass penetrators also offer a comparatively low cost method of achieving these important science goals. A payload of two penetrators is proposed to provide redundancy, and improve scientific return, including enhanced networked seismometer performance and diversity of sampled regions. We also describe the associated candidate instruments, penetrator system architecture, and technical challenges for such penetrators, and include their current status and future development plans.

Published
2011

126. Assessing the structure of planetary interiors from satellite and ground-based geophysical data: a comparative study of Venus, Earth and Mars

Author

Mocquet, A., Rosenblatt, P., Dehant, V., Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), and Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2009

127. Study of habitability from Mars-NEXT

Author

Breuer, D., Chicarro, A., Carpenter, J., Chassefiere, E., Dehant, V., Fisackerly, R., Grady, M., Pinet, P., Rossi, A., and Santovincenzo, A.

Subjects
habitability, water, atmospheres, magnetosphere, convection, Mars-NEXT
Published
2008

128. Scientific and technical aspects of the ESA Mars NEXT Mission

Author

Chicarro, A., Carpenter, J.D., Fisackerly, R., Santovincenzo, A., Breuer, D., Chassefière, E., Dehant, V., Grady, M., Pinet, P., Rossi, A.P., Deutsches Zentrum für Luft- und Raumfahrt (DLR), Interactions et dynamique des environnements de surface (IDES), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Royal Observatory of Belgium [Brussels] (ROB), Institut d'Astronomie et de Géophysique Georges Lemaître (UCL-ASTR), Université Catholique de Louvain = Catholic University of Louvain (UCL), Services communs OMP (UMS 831), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-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), and Anil Bhardwaj

Subjects
[SDU.STU.PL]Sciences of the Universe [physics]/Earth Sciences/Planetology, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2008

129. Mars environement and Magnetic Orbiter - MEMO

Author

Leblanc, François, Langlais, B., Fouchet, T., Chassefière, Eric, Sotin, C., Barabash, S., Coates, A., Dehant, V., Lammer, H., Mandea, M., Vennerstrom, S., Breuer, D., Paetzold, M., Forget, François, Tarits, Pascal, Menvielle, Michel, Read, P., Lopez-Valverde, M., Lewis, S., Pais, A., Service d'aéronomie (SA), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), and Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU.PL]Sciences of the Universe [physics]/Earth Sciences/Planetology, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2007

130. Mars rotation and deformation as seen from a lander or a spacecraft orbiting a planet

Author

Dehant, V., Hooslt T., Van, Mocquet, A., Lognonné, P., Menvielle, M., Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), and Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Published
2007

131. The Mars Environment and Magnetic Orbiter : a Cosmic Vision mission proposal

Author

Leblanc, François, Langlais, B., Chassefière, Eric, Sotin, C., Barabash, S., Coates, A., Dehant, V., Lammer, H., Mandea, M., Vennerstrøm, S., Breuer, D., Fouchet, T., Paetzold, M., Forget, F., Tarits, Pascal, Service d'aéronomie (SA), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Swedish Institute of Space Physics [Kiruna] (IRF), Space Research Institute of Austrian Academy of Sciences (IWF), Austrian Academy of Sciences (OeAW), Royal Observatory of Belgium [Brussels] (ROB), Department of Space and Climate Physics [UCL London], Mullard Space Science Laboratory (MSSL), University College of London [London] (UCL)-University College of London [London] (UCL), GeoForschungsZentrum - Helmholtz-Zentrum Potsdam (GFZ), National Space Institute [Lyngby] (DTU Space), Danmarks Tekniske Universitet = Technical University of Denmark (DTU), DLR Institut für Planetenforschung, Deutsches Zentrum für Luft- und Raumfahrt [Berlin] (DLR), Observatoire de Paris, Université Paris sciences et lettres (PSL), Universität zu Köln = University of Cologne, Laboratoire de Météorologie Dynamique (UMR 8539) (LMD), Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris, École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Institut Universitaire Européen de la Mer (IUEM), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS), Technical University of Denmark [Lyngby] (DTU), Universität zu Köln, École normale supérieure - Paris (ENS Paris), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris)

Subjects
[SDU.STU.PL]Sciences of the Universe [physics]/Earth Sciences/Planetology, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2007

132. MEMO: Mars Escape and Magnetic Orbiter

Author

Leblanc, François, Langlais, B., Chassefière, Eric, Sotin, C., Barabash, S., Coates, A., Dehant, V., Lammer, H., Mandea, M., Vennerstrom, S., Service d'aéronomie (SA), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Swedish Institute of Space Physics [Kiruna] (IRF), Space Research Institute of Austrian Academy of Sciences (IWF), Austrian Academy of Sciences (OeAW), Royal Observatory of Belgium [Brussels] (ROB), Department of Space and Climate Physics [UCL London], Mullard Space Science Laboratory (MSSL), University College of London [London] (UCL)-University College of London [London] (UCL), GeoForschungsZentrum - Helmholtz-Zentrum Potsdam (GFZ), National Space Institute [Lyngby] (DTU Space), Technical University of Denmark [Lyngby] (DTU), and Danmarks Tekniske Universitet = Technical University of Denmark (DTU)

Subjects
[SDU.STU.PL]Sciences of the Universe [physics]/Earth Sciences/Planetology, Astrophysics::Instrumentation and Methods for Astrophysics
Abstract

Poster; MEMO is a new orbiter devoted to the characterization of present atmospheric escape and of the fossile magnetic field. The low periapsis (~130 km) is required to detect and quantify atoms and molecules involved in the escape, and to measure the magnetic f

Published
2007

133. MEMO: Mars Environment and Magnetic Orbiter: A cosmic Vision proposal

Author

Leblanc, François, Langlais, B., Fouchet, T., Chassefière, Eric, Sotin, C., Barabash, S., Dehant, V., Lammer, H., Mandea, M., Vennerstrom, S., Coates, A., Breuer, D., Paetzold, M., Forget, F., Tarits, Pascal, Menvielle, Michel, Read, P., Lopez-Valverde, M., Lewis, S., Pais, A., 2.3 Earth's Magnetic Field, 2.0 Physics of the Earth, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum, Service d'aéronomie (SA), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Observatoire de Paris, Université Paris sciences et lettres (PSL), Swedish Institute of Space Physics [Kiruna] (IRF), Royal Observatory of Belgium [Brussels] (ROB), Department of Space and Climate Physics [UCL London], Mullard Space Science Laboratory (MSSL), University College of London [London] (UCL)-University College of London [London] (UCL), GeoForschungsZentrum - Helmholtz-Zentrum Potsdam (GFZ), National Space Institute [Lyngby] (DTU Space), Danmarks Tekniske Universitet = Technical University of Denmark (DTU), Space Research Institute of Austrian Academy of Sciences (IWF), Austrian Academy of Sciences (OeAW), DLR Institut für Planetenforschung, Deutsches Zentrum für Luft- und Raumfahrt [Berlin] (DLR), Universität zu Köln = University of Cologne, Laboratoire de Météorologie Dynamique (UMR 8539) (LMD), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris, École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Institut Universitaire Européen de la Mer (IUEM), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS), Centre d'étude des environnements terrestre et planétaires (CETP), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Department of Atmospheric, Oceanic and Planetary Physics [Oxford] (AOPP), University of Oxford, Instituto de Astrofísica de Andalucía (IAA), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Department of Physics and Astronomy [Milton Keynes], The Open University [Milton Keynes] (OU), Department of Physics [Coimbra], University of Coimbra [Portugal] (UC), Technical University of Denmark [Lyngby] (DTU), Universität zu Köln, Département des Géosciences - ENS Paris, École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École des Ponts ParisTech (ENPC)-École polytechnique (X)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), and University of Oxford [Oxford]

Subjects
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences, 550 - Earth sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2007

134. Mercury's Interior structure

Author

Verhoeven, O., Rivoldini, A., Van Hoolst, T., Vacher, P., Mocquet, A., Menvielle, Michel, Choblet, G., Dehant, V., Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre d'étude des environnements terrestre et planétaires (CETP), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), and Cardon, Catherine

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

International audience

Published
2006

135. Contraintes géophysiques sur la structure interne de Mars

Author

Verhoeven, O., Rivoldini, A., Vacher, P., Mocquet, A., Choblet, G., Menvielle, M., Dehant, V., Hoolst T., Van, J.P., Barriot, Lognonné, P., Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), and Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
ComputingMilieux_MISCELLANEOUS
Abstract

National audience

Published
2006

136. Mars interior structure models from tidal measurements

Author

Rivoldini, A., Verhoeven, O., Hoolst T., Van, Mocquet, A., Dehant, V., Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), and Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2005

137. Temperature and composition of the Martian deep interior inferred from the magnetic data

Author

Vacher, P., Verhoeven, O., Rivoldini, A., Mocquet, A., Choblet, G., Menvielle, M., Dehant, V., Hoolst T., Van, Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), and Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Published
2005

138. A Network of Geophysical Observatories for Mars

Author

W. B., Banerdt, Christensen, U., Crisp, D., Dehant, V., G. T., Delory, Lognonné, P., Sotin, C., Spohn, T., Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), and Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2005

139. Geophysical constraints on the internal structure of Mars

Author

Verhoeven, O., Rivoldini, A., Vacher, P., Mocquet, A., Choblet, G., Menvielle, M., Dehant, V., Hoolst T., Van, J.P., Barriot, Lognonné, P., Cardon, Catherine, Centre d'étude des environnements terrestre et planétaires (CETP), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), and Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

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

International audience

Published
2005

140. Mars interior models

Author

Rivoldini, A., Verhoeven, O., Hoolst T., Van, Mocquet, A., Choblet, G., Menvielle, M., Vacher, P., Dehant, V., Cardon, Catherine, Centre d'étude des environnements terrestre et planétaires (CETP), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), and Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

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

International audience

Published
2005

143. Geophysical models of the Martian internal srtucture

Author

Verhoeven, O., Rivoldini, A., Vacher, P., Mocquet, A., Choblet, G., Menvielle, M., Dehant, V., Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), and Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2004

144. Planetary interiors structure inferred from electromagnetic,geodetic and seismic network science

Author

Rivoldini, A., Vacher, P., Verhoeven, O., Menvielle, M., Dehant, V., Mocquet, A., Choblet, G., Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), and Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
ComputingMethodologies_GENERAL, ComputingMilieux_MISCELLANEOUS
Abstract

+ Poster; International audience

Published
2004

145. Proposal For a European Lander Mission Roadmap To Explore Mars

Author

Spohn, T., Lognonne, P., Block, J., Ulamec, S., Nadalini, R., Dehant, V., Kömle, N., Menvielle, M., Seiferlin, K., Grygorczuk, J., Benkhoff, J., Chicarro, A., Richter, L., Hilchenbach, M., Goesmann, F., and Cardon, Catherine

Subjects
[PHYS.PHYS.PHYS-PLASM-PH] Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph], [SDU.ASTR] Sciences of the Universe [physics]/Astrophysics [astro-ph]
Published
2004

146. Study of the martian interior structure: expectations from network science

Author

Verhoeven, O., Rivoldini, A., Vacher, P., Mocquet, A., Choblet, G., Menvielle, M., Dehant, V., Cardon, Catherine, Centre d'étude des environnements terrestre et planétaires (CETP), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), and Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

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

International audience

Published
2004

147. Astrometric Observations of Phobos and Deimos During the 1971 Opposition of Mars

Author

NAVAL OBSERVATORY WASHINGTON DC, robert, V, Lainey, V, Pascu, D, Arlot, J, De Cuyper, J, Dehant, V, Thuillot, W, NAVAL OBSERVATORY WASHINGTON DC, robert, V, Lainey, V, Pascu, D, Arlot, J, De Cuyper, J, Dehant, V, and Thuillot, W

Abstract

Context. Accurate positional measurements of planets and satellites are used to improve our knowledge of their dynamics and to infer the accuracy of planet and satellite ephemerides. Aims. In the framework of the FP7 ESPaCE project, we provide the positions of Mars, Phobos, and Deimos taken with the U.S. Naval Observatory 26-inch refractor during the 1971 opposition of the planet. Methods. These plates were measured with the digitizer of the Royal Observatory of Belgium and reduced through an optimal process that includes image, instrumental, and spherical corrections to provide the most accurate data. Results. We compared the observed positions of the planet Mars and its satellites with the theoretical positions from INPOP10 and DE430 planetary ephemerides, and from NOE and MAR097 satellite ephemerides. The rms residuals in RA and Dec. of one position is less than 60 mas, or about 20 km at Mars. This accuracy is comparable to the most recent CCD observations. Moreover, it shows that astrometric data derived from photographic plates can compete with those of old spacecraft (Mariner 9, Viking 1 and 2)., Published in Astronomy & Astrophysics, October 6, 2014. The original document contains color images.

Published
2014

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