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  • Astrophysics of high energy | UnivEarthS
    Fundamental physics and Geophysics in space From dust to planets Former Interface projects Formation and early evolution of Planetary systems The youth of cosmic rays and their emergence in the interstellar clouds Gamma ray instrumentation development Young team project Experimental geophysics Valorization project Data distribution visualisation and cloud computing PUBLICATIONS EDUCATIONAL Nanosatellite student project IGOsat UnivEarthS JOB OPPORTUNITY Experimental Dark Matter Search Post Doctoral Research Fellow IGOSat internship PhD position Effect of the North South dichotomy on the thermal structure and evolution of Mars Search this site October Mon Tue Wed Thu Fri Sat Sun 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Sign in Password forgotten Home Astrophysics of high energy F3 project team Stéphane Corbel Professeur des Universités AIM Isabelle Grenier Professeur des Universités AIM Jean Luc Starck Chercheur CEA AIM Page web Julien Girard Post doc LabEx UnivEarthS AIM Page web à venir Ming Jiang Doctorant CEA AIM Page web Astrophysics of high energy Read more F3 project presentation The capability to study transient phenomena on time scales from milliseconds to years has recently

    Original URL path: http://www.univearths.fr/en/category/domaines/astrophysics-high-energy?page=1 (2015-10-10)
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  • Planetary sciences | UnivEarthS
    30 Sign in Password forgotten Home Planetary sciences Publication Time evolution of snow regions and planet traps in an evolving protoplanetary disk 06 05 2015 K Baillié S Charnoz and E Pantin members of Interface Project From dust to stars publish their results in the newspaper Astronomy Astrophysics Their article is entitled Time evolution of snow regions and planet traps in an evolving protoplanetary disk Planetary sciences Read more Project I6 results and experiments 08 10 2014 Detailed description of the different research themes From dust to planet embryos Planetary sciences Read more Project I6 team 07 10 2014 Planetary sciences Project I6 presentation 07 10 2014 Planetary sciences Read more Doctoral position Dune morphogenesis in landscape scale experiments and link with planetary climate Location Équipe Dynamique des fluides géologiques Institut Physique du Globe de Paris 1 rue Jussieu 75005 Paris Subject Title Dune morphogenesis in landscape scale experiments and link with planetary climate Supervisors Clément Narteau IPGP narteau ipgp fr Planetary sciences Read more 2 attachments NASA s GRAIL Mission Puts a New Face on the Moon 09 11 2013 Nov 7 2013 Scientists using data from the lunar orbiting twins of NASA s Gravity Recovery and Interior Laboratory GRAIL mission are gaining new insight into how the face of the moon received its rugged good looks A report on the asymmetric distribution of lunar impact basins is published in this week s edition of the journal Science Planetary sciences Read more INSIGHT mission selected by NASA 14 12 2012 NASA select INSIGHT with the first génération of planetary seismometer SEIS To know more on the SEISmometer http seis ipgp fr Cosmology and fundamental physics Planetary sciences Planetary rings are at the origin of Solar System satellites 12 12 2012 Two French researchers published the first model that is

    Original URL path: http://www.univearths.fr/en/category/domaines/planetary-sciences?mini=node%2F333%2F2015-09 (2015-10-10)
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  • Project I6 results and experiments | UnivEarthS
    the first solids in the protoplanetary disk and their incorporation into embryos including turbulent dynamics radiative effects and planet disk interactions Simple chemical and isotopic fractionation models will be included into simulations of turbulent dust transport in order to test different scenarios to interpret isotopic data Three important modeling tasks will be lead Development of a dust transport model in the protoplanetary disk taking into account turbulence and dust condensation refractories near the Sun and volatiles near the snow line Coupling of the dust transport model with a radiative transfer code in order to create synthetic images to space observation of disks Development of a protoplanetary disk thermodynamical model in order to constrain the condition of formation of dust in order to compare with laboratory data Estimation of the irradiation flux of dust in the disk in order to calibrate experiments of fractionation of dust under irradiation Beside the earliest phases of planet formation N body simulations of embryo transport in the disk in the frame of the Nice model will be lead to constrain the radial origin of the building blocks that assembled into the modern terrestrial planets This will lead naturally to interactions with research theme 2 that concerns itself with the initial differentiation and interior structure of the terrestrial planets Differentiation interior structure and geologic evolution of the terrestrial planets The processes that took place during the initial differentiation of the Earth are reasonable well understood the composition of the major chemical reservoirs crust mantle and core are relatively well known and the manner by which internal heat is lost to space via plate tectonics is understood from both observational of modeling perspectives For the other terrestrial planets however our understanding of these processes is considerably more limited and many first order questions remain unresolved For example What is the thickness and composition of the crust of Mercury the Moon and Mars At what depths do the major phase transitions occur in the mantles of Mars and Venus and how do these phase transitions affect mantle convection and plume dynamics What is the size of the metallic core of Mercury Mars and the Moon And what are the abundances of light alloying elements such as sulfur carbon and silicon in the liquid portion of their cores Do Mercury Mars and the Moon possess a solid inner core And is core crystallization the source of energy that is powering the dynamo generated magnetic field of Mercury today What was the energy source that powered the early dynamos of Mars and the Moon and why did their dynamos later shut off To address these and other question this project will rely upon a three pronged approach making use of geophysical data collected by planetary missions high pressure laboratory experiments and numerical and geophysical modeling Members of this research axe are currently involved in several NASA and ESA planetary missions at both the co investigator and principal investigator level including NASA s geophysical missions to the Moon GRAIL and Mars InSight and ESA s orbital missions to Mercury BepiColumbo and Jupiter JUICE Furthermore members of our project have recently finished the construction of a world class high pressure geo materials laboratory that is currently making its first measurements Together these datasets will offer us a unique perspective to unravel the above listed questions concerning the differentiation interior evolution and geologic evolution of the terrestrial planets The first two years of the UnivEarthS I1 project funded our analyses of lunar gravitational data acquired during the primary mission of the Gravity Recovery and Interior Laboratory GRAIL mission Results from our group have shown that the crust of the Moon is significantly thinner than once thought that the crust has been highly fractured by billions of years of impact cratering and that lateral variations in crustal temperature have had a dramatic influence on the morphology of giant impact basins During this initial stage of analysis the UnivEarthS funded a LabEx postdoc and contributed to the publications of two articles in the journal Science We now have at our disposal gravitational data from the extended mission which has a spatial resolution that is two times better than that acquired during the primary mission Over the following three years we aim to study processes that were previously beyond reach such as the gravitational signature of magnetic anomalies and magmatic intrusions and the subsurface structure of medium sized simple and complex impact craters For these studies we ask that the UnivEarthS LabEx fund a post doc in additional to our initial demand three years ago At the time the initial UnivEarthS proposal was selected our group anticipated on providing a seismometer to the Japanese lunar geophysical mission SELENE 2 with a launch near 2018 Since this time NASA selected the Martian geophysical mission InSight which will be launched and land on Mars in 2016 Members of our research group are providing at the principal investigator level the sole instrument that is above the mission s science threshold This instrument is the very broad band seismometer that is being developed at IPGP and which will make the first seismic measurements ever on the surface of Mars Data from this mission will constrain the size of the martian core determine if a solid inner core exists determine the thickness of the crust and search for seismic discontinuities in the mantle among other objectives The UnivEarthS project previously agreed to fund a LabEx postdoc and a co financed thesis student for seismic analysis related to the SELENE 2 mission and these resources will be redirected towards the InSight mission in this revised project In addition to our initial demand we ask the UnivEarthS LabEx for an additional co financed thesis student to help with the flood of data that will arrive when InSight lands on Mars in 2016 The proposed experimental approach aims at combining astrophysical models of planetary accretion with geochemical models of planetary differentiation and cosmochemical constraints provided by meteorites During the first two years funded by

    Original URL path: http://www.univearths.fr/en/project-i6-results-and-experiments (2015-10-10)
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  • Project I6 team | UnivEarthS
    the Big Bang to the future Universe Support au PCCP The transient catastrophic Universe Interface projects Geoparticles Fundamental physics and Geophysics in space From dust to planets Former Interface projects Formation and early evolution of Planetary systems The youth of cosmic rays and their emergence in the interstellar clouds Gamma ray instrumentation development Young team project Experimental geophysics Valorization project Data distribution visualisation and cloud computing PUBLICATIONS EDUCATIONAL Nanosatellite student

    Original URL path: http://www.univearths.fr/en/project-i6-team (2015-10-10)
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  • Project I6 presentation | UnivEarthS
    bodies are currently being lively debated Whereas there is a general agreement that planets form in a protoplanetary disk rich in dust and gas many important questions remain unanswered concerning the earliest phases of planet formation how did the dust coagulate to form planetary building blocks and how were the different chemical and isotopic compositions found on planets generated Answers and constraints may be found within this LabEx project by the observation of young protoplanetary disks VISIR and JWST through laboratory experiments on meteorites that constrain their formation conditions and timescales and through numerical simulation of disk evolution Later once a planet or a satellite has formed a wealth of information on its assemblage and differentiation processes may be explored Clues to these processes can be obtained by studying the interior structure of a planet by investigating the composition of its major geochemical reservoirs and by investigating the planet s subsequent thermal evolution These questions can be addressed by the use of geophysical data such as through the planet s gravity field or by seismic measurements and spacecraft derived topographic maps and images of volcanic landforms High pressure laboratory experiments are also crucial for understanding the physics of differentiation and the partitioning of elements between the crust mantle and core Artist view of a planetary system formation La structure interne des planètes peut être contrainte en étudiant la composition de ses principaux réservoirs géochimiques et en étudiant leur évolution thermique ultérieure Les données ont des origines diverses données géophysiques obtenues notamment par le biais du champ de gravité de la planète ou mesures sismiques ou mesures physiques de surface observations in situ grâce à des satellites ou véhicules d observation cartes topographiques images de paysages volcaniques Egalement les expériences de laboratoire à haute pression sont cruciales pour la compréhension de

    Original URL path: http://www.univearths.fr/en/project-i6-presentation (2015-10-10)
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  • Doctoral position: Dune morphogenesis in landscape-scale experiments and link with planetary climate | UnivEarthS
    UnivEarthS JOB OPPORTUNITY Experimental Dark Matter Search Post Doctoral Research Fellow IGOSat internship PhD position Effect of the North South dichotomy on the thermal structure and evolution of Mars Search this site October Mon Tue Wed Thu Fri Sat Sun 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Sign in Password forgotten Home OVERVIEW Scientific areas Doctoral position Dune morphogenesis in landscape scale experiments and link with planetary climate Location Équipe Dynamique des fluides géologiques Institut Physique du Globe de Paris 1 rue Jussieu 75005 Paris Subject Title Dune morphogenesis in landscape scale experiments and link with planetary climate Supervisors Clément Narteau IPGP narteau ipgp fr Sébastien Rodriguez AIM sebastien rodriguez cea fr Sylvain Courrech du Pont MSC sylvain courrech univ paris diderot fr Summary During the last two years new collaborations have been established with the Chinese Academy of Science to develop field experiments on the physics of sand dunes within their natural environment using controlled initial and boundary conditions This so called landscape scale experiment is a novel and unique concept that is particularly well suited for validation and quantification purposes Given the extreme conditions encountered in arid deserts and the time scales associated with the development of bedforms in situ experiments on aeolian sand dunes have to combine logistics facilities with long term measurements By successfully meeting these challenges in China thanks to the local climate and the field expertise of Chinese scientists we will be able to obtain new experimental evidences for the formation of dunes and their alignment in multimodal wind regimes To take into account the cumulative effect of seasonal winds this fieldwork needs to be extended over several years up

    Original URL path: http://www.univearths.fr/en/doctoral-position-dune-morphogenesis-landscape-scale-experiments-and-link-planetary-climate (2015-10-10)
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  • Planetary sciences | UnivEarthS
    youth of cosmic rays and their emergence in the interstellar clouds Gamma ray instrumentation development Young team project Experimental geophysics Valorization project Data distribution visualisation and cloud computing PUBLICATIONS EDUCATIONAL Nanosatellite student project IGOsat UnivEarthS JOB OPPORTUNITY Experimental Dark Matter Search Post Doctoral Research Fellow IGOSat internship PhD position Effect of the North South dichotomy on the thermal structure and evolution of Mars Search this site October Mon Tue Wed Thu Fri Sat Sun 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Sign in Password forgotten Home Planetary sciences I3 project team Planetary Seismometer TEAM IPGP Philippe Lognonné IPGP Professor Université Paris Diderot Planetary and Space Science lognonne ipgp fr Sébastien de Raucourt IPGP Research Engineer Université Paris Diderot Planetary and Space Science deraucourt ipgp fr Cosmology and fundamental physics Planetary sciences Read more I3 project presentation Through the space projects they have been or are pursuing IPGP and APC have acquired an expertise in precision measurements of distances times and acceleration in astrophysics fundamental physics in space Planetary surface Earth surface and ocean bottom as well as a leading role in France in the coordination of missions closely associated to these techniques e g French LISA office LISA France and the French Planetary seismometer selected onboard the NASA INSIGHT mission Cosmology and fundamental physics Planetary sciences Read more I1 project publications UnivEarthS Publications 2013 Asymmetric distribution of lunar impact basins caused by variations in target properties Miljković K M A Wieczorek G S Collins M Laneuville G A Neumann H J Melosh S C Solomon R J Phillips D E Smith M T Zuber Science 342 724 726 doi 10 1126 science 1243224 Planetary sciences Read

    Original URL path: http://www.univearths.fr/en/category/domaines/planetary-sciences?page=1 (2015-10-10)
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  • Terre et sciences de l’environnement | UnivEarthS
    their emergence in the interstellar clouds Gamma ray instrumentation development Young team project Experimental geophysics Valorization project Data distribution visualisation and cloud computing PUBLICATIONS EDUCATIONAL Nanosatellite student project IGOsat UnivEarthS JOB OPPORTUNITY Experimental Dark Matter Search Post Doctoral Research Fellow IGOSat internship PhD position Effect of the North South dichotomy on the thermal structure and evolution of Mars Search this site September Mon Tue Wed Thu Fri Sat Sun 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Sign in Password forgotten Home Terre et sciences de l environnement Arrivée de Wafa Abouchami comme postdoctorante dans le cadre du Projet F1 1 07 07 2015 Terre et sciences de l environnement Read more Deux nouvelles publications pour le projet Frontière La vie sur la planète Terre 07 07 2015 Chemical signature of magnetotactic bacteria Amor M Busigny V Durand Dubief M Tharaud M Ona Nguema G Gélabert A Alphandéry E Menguy N Benedetti M Cgebbi I Guyot F 2015 Chemical signature of magnetotactic bacteria Proc Nat Acad Sci www pnas org cgi doi 10 1073 pnas 1414112112 Terre et sciences de l environnement Read more Neutrino Geoscience Workshop 2015 10 06 2015 La conférence Neutrino Geoscience 2015 se déroulera à l IPGP du 15 au 17 juin 2015 http www ipgp fr fr evenements neutrino geoscience 2015 conference Terre et sciences de l environnement Composition de l Atmosphère Archeene 20 09 2013 Une découverte récente sur la composition de l atmosphère Archéenne est publiée ce jour dans Science Cette étude impliquant Pascal Philippot de l IPGP a été réalisée sur les roches du forage de Pilbara conduit en 2004 par l IPGP Terre et sciences de l environnement Read

    Original URL path: http://www.univearths.fr/en/category/domaines/terre-et-sciences-de-lenvironnement?mini=node%2F333%2F2015-09 (2015-10-10)
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