TY - JOUR A1 - Arridge, Christopher S. A1 - Achilleos, N. A1 - Agarwal, Jessica A1 - Agnor, C. B. A1 - Ambrosi, R. A1 - Andre, N. A1 - Badman, S. V. A1 - Baines, K. A1 - Banfield, D. A1 - Barthelemy, M. A1 - Bisi, M. M. A1 - Blum, J. A1 - Bocanegra-Bahamon, T. A1 - Bonfond, B. A1 - Bracken, C. A1 - Brandt, P. A1 - Briand, C. A1 - Briois, C. A1 - Brooks, S. A1 - Castillo-Rogez, J. A1 - Cavalie, T. A1 - Christophe, B. A1 - Coates, Andrew J. A1 - Collinson, G. A1 - Cooper, J. F. A1 - Costa-Sitja, M. A1 - Courtin, R. A1 - Daglis, I. A. A1 - De Pater, Imke A1 - Desai, M. A1 - Dirkx, D. A1 - Dougherty, M. K. A1 - Ebert, R. W. A1 - Filacchione, Gianrico A1 - Fletcher, Leigh N. A1 - Fortney, J. A1 - Gerth, I. A1 - Grassi, D. A1 - Grodent, D. A1 - Grün, Eberhard A1 - Gustin, J. A1 - Hedman, M. A1 - Helled, R. A1 - Henri, P. A1 - Hess, Sebastien A1 - Hillier, J. K. A1 - Hofstadter, M. H. A1 - Holme, R. A1 - Horanyi, M. A1 - Hospodarsky, George B. A1 - Hsu, S. A1 - Irwin, P. A1 - Jackman, C. M. A1 - Karatekin, O. A1 - Kempf, Sascha A1 - Khalisi, E. A1 - Konstantinidis, K. A1 - Kruger, H. A1 - Kurth, William S. A1 - Labrianidis, C. A1 - Lainey, V. A1 - Lamy, L. L. A1 - Laneuville, Matthieu A1 - Lucchesi, D. A1 - Luntzer, A. A1 - MacArthur, J. A1 - Maier, A. A1 - Masters, A. A1 - McKenna-Lawlor, S. A1 - Melin, H. A1 - Milillo, A. A1 - Moragas-Klostermeyer, Georg A1 - Morschhauser, Achim A1 - Moses, J. I. A1 - Mousis, O. A1 - Nettelmann, N. A1 - Neubauer, F. M. A1 - Nordheim, T. A1 - Noyelles, B. A1 - Orton, G. S. A1 - Owens, Mathew A1 - Peron, R. A1 - Plainaki, C. A1 - Postberg, F. A1 - Rambaux, N. A1 - Retherford, K. A1 - Reynaud, Serge A1 - Roussos, E. A1 - Russell, C. T. A1 - Rymer, Am. A1 - Sallantin, R. A1 - Sanchez-Lavega, A. A1 - Santolik, O. A1 - Saur, J. A1 - Sayanagi, Km. A1 - Schenk, P. A1 - Schubert, J. A1 - Sergis, N. A1 - Sittler, E. C. A1 - Smith, A. A1 - Spahn, Frank A1 - Srama, Ralf A1 - Stallard, T. A1 - Sterken, V. A1 - Sternovsky, Zoltan A1 - Tiscareno, M. A1 - Tobie, G. A1 - Tosi, F. A1 - Trieloff, M. A1 - Turrini, D. A1 - Turtle, E. P. A1 - Vinatier, S. A1 - Wilson, R. A1 - Zarkat, P. T1 - The science case for an orbital mission to Uranus: Exploring the origins and evolution of ice giant planets JF - Planetary and space science N2 - Giant planets helped to shape the conditions we see in the Solar System today and they account for more than 99% of the mass of the Sun's planetary system. They can be subdivided into the Ice Giants (Uranus and Neptune) and the Gas Giants (Jupiter and Saturn), which differ from each other in a number of fundamental ways. Uranus, in particular is the most challenging to our understanding of planetary formation and evolution, with its large obliquity, low self-luminosity, highly asymmetrical internal field, and puzzling internal structure. Uranus also has a rich planetary system consisting of a system of inner natural satellites and complex ring system, five major natural icy satellites, a system of irregular moons with varied dynamical histories, and a highly asymmetrical magnetosphere. Voyager 2 is the only spacecraft to have explored Uranus, with a flyby in 1986, and no mission is currently planned to this enigmatic system. However, a mission to the uranian system would open a new window on the origin and evolution of the Solar System and would provide crucial information on a wide variety of physicochemical processes in our Solar System. These have clear implications for understanding exoplanetary systems. In this paper we describe the science case for an orbital mission to Uranus with an atmospheric entry probe to sample the composition and atmospheric physics in Uranus' atmosphere. The characteristics of such an orbiter and a strawman scientific payload are described and we discuss the technical challenges for such a mission. This paper is based on a white paper submitted to the European Space Agency's call for science themes for its large-class mission programme in 2013. KW - Uranus KW - Magnetosphere KW - Atmosphere KW - Natural satellites KW - Rings KW - Planetary interior Y1 - 2014 U6 - https://doi.org/10.1016/j.pss.2014.08.009 SN - 0032-0633 VL - 104 SP - 122 EP - 140 PB - Elsevier CY - Oxford ER - TY - JOUR A1 - Rohrmüller, J. A1 - Kämpf, Horst A1 - Geiss, E. A1 - Grossmann, J. A1 - Grun, I. A1 - Mingram, Jens A1 - Mrlina, J. A1 - Plessen, Birgit A1 - Stebich, M. A1 - Veress, C. A1 - Wendt, A. A1 - Nowaczyk, Nobert T1 - Reconnaissance study of an inferred Quaternary maar structure in the western part of the Bohemian Massif near Neualbenreuth, NE-Bavaria (Germany) JF - International journal of earth sciences N2 - After a comprehensive geophysical prospecting the Quaternary MA 1/2 tina Maar, located on a line between the two Quaternary scoria cones Komorni could be revealed by a scientific drilling at the German-Czech border in 2007. Further geophysical field investigations led to the discovery of another geological structure about 2.5 km ESE of the small town Neualbenreuth (NE-Bavaria, Germany), inferred to be also a maar structure, being the fourth volcanic feature aligned along the NW-SE trending Tachov fault zone. It is only faintly indicated as a partial circular rim in the digital elevation model. Though not expressed by a clear magnetic anomaly, geoelectric and refraction seismic tomography strongly indicates a bowl-shaped depression filled with low-resistivity and low-velocity material, correlating well with the well-defined negative gravity anomaly of - 2.5 mGal. Below ca. 15 m-thick debris layer, successions of mostly laminated sediments were recovered in a 100 m-long sediment core in 2015. Sections of finely laminated layers, likely varves, rich in organic matter and tree pollen, were recognized in the upper (22-30 m) and lower (70-86 m) part of the core, respectively, interpreted as interglacials, whereas mostly minerogenic laminated deposits, poor in organic matter, and (almost) barren of tree pollen are interpreted as clastic glacial deposits. According to a preliminary age model based on magnetostratigraphy, palynology, radiocarbon dating, and cyclostratigraphy, the recovered sediments span the time window from about 85 ka back to about 270 ka, covering marine isotope stages 5-8. Sedimentation rates are in the range of 10 cm ka(-1) in interglacials and up to 100 cm ka(-1) in glacial phases. The stratigraphic record resembles the one from MA 1/2 tina Maar, with its eruption date being derived from a nearby tephra deposit at 288 +/- 17 ka, thus supporting the age model of the inferred Neualbenreuth Maar. KW - Eger Rift KW - Quaternary maar volcanism KW - Geophysical prospecting KW - Magnetostratigraphy KW - Palynology KW - Paleoclimate Y1 - 2018 U6 - https://doi.org/10.1007/s00531-017-1543-0 SN - 1437-3254 SN - 1437-3262 VL - 107 IS - 4 SP - 1381 EP - 1405 PB - Springer CY - New York ER -