Browsing Institutt for geofag by Author "Werner, Stephanie C."

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  • Ariel planetary interiors White Paper 
    Helled, Ravit; Werner, Stephanie C.; Dorn, Caroline; Guillot, Tristan; Ikoma, Masahiro; Ito, Yuichi; Kama, Mihkel; Lichtenberg, Tim; Miguel, Yamila; Shorttle, Oliver; Tackley, Paul J.; Valencia, Diana; Vazan, Allona (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Abstract The recently adopted Ariel ESA mission will measure the atmospheric composition of a large number of exoplanets. This information will then be used to better constrain planetary bulk compositions. While the ...
  • Automatic Characterization of Boulders on Planetary Surfaces From High-Resolution Satellite Images 
    Prieur, Nils Charles; Amaro, Brian; Gonzalez, Emiliano; Kerner, Hannah; Medvedev, Sergei; Rubanenko, Lior; Werner, Stephanie C.; Xiao, Zhiyong; Zastrozhnov, Dmitry; Lapôtre, Mathieu G. A. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Abstract Boulders form from a variety of geological processes, which their size, shape, and orientation may help us better understand. Furthermore, they represent potential hazards to spacecraft landing that need to be ...
  • Change in General Relativistic Precession Rates due to Lidov-Kozai oscillations in the Solar System 
    Sekhar, Aswin; Asher, D.J.; Werner, Stephanie C.; Vaubaillon, J.; Li, G. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    Both general relativistic (GR) precession and the Lidov–Kozai mechanism, separately, are known to play an important role in the orbital evolution of Solar system bodies. Previous works have studied these two mechanisms ...
  • Detection of Carbonates in Martian Weathering Profiles 
    Bultel, Benjamin; Viennet, Jean-Christophe; Poulet, Francois; Carter, John; Werner, Stephanie C. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    Noachian surfaces on Mars exhibit vertical assemblages of weathering horizons termed as weathering profiles; this indicates that surface water caused alteration of the rocks that required a different, warmer climate than ...
  • The effect of target properties on transient crater scaling for simple craters 
    Prieur, Nils Charles; Rolf, Tobias; Luther, Robert; Wunnemann, Kai; Xiao, Zhiyong; Werner, Stephanie C. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    The effects of the coefficient of friction and porosity on impact cratering are not sufficiently considered in scaling laws that predict the crater size from a known impactor size, velocity, and mass. We carried out a ...
  • Experimental hydrothermal alteration of basaltic glass with relevance to Mars 
    Sætre, Christian; Hellevang, Helge; Riu, Lucie; Dypvik, Henning; Pilorget, C; Poulet, Francois; Werner, Stephanie C. (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
    Phyllosilicates, carbonates, zeolites, and sulfates on Mars give clues about the planet's past environmental conditions, but little is known about the specific conditions in which these minerals formed within the crust and ...
  • Experimental reproduction of the martian weathering profiles argues for a dense Noachian CO<sub>2</sub> atmosphere 
    Viennet, Jean-Christophe; Bultel, Benjamin; Werner, Stephanie C. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    On Mars, mineral sequences have been detected and they are composed of a top layer of Al-rich clay minerals, then (Al, Fe)-rich clay minerals and a bottom layer composed of (Mg, Fe)-rich clay minerals. By analogy with ...
  • Formation of simple impact craters in layered targets: Implications for lunar crater morphology and regolith thickness 
    Prieur, Nils Charles; Rolf, Tobias; Wünnemann, Kai; Werner, Stephanie C. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    Impact crater morphologies vary significantly across the lunar maria. Craters with diameter less than 400 m are closely related to variations in target properties (rock strength, porosity, and layering) as well as the ...
  • Forming rocky exoplanets around K-dwarf stars 
    Hatalova, Petra; Brasser, R.; Mamonova, Elena; Werner, Stephanie C. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Context. New space telescopes, such as the upcoming PLATO mission, aim to detect and study thousands of exoplanets, especially terrestrial planets around main-sequence stars. This motivates us to study how these planets ...
  • Inferences on the mantle viscosity structure and the post-overturn evolutionary state of Venus 
    Rolf, Tobias; Steinberger, Bernhard; Sruthi, U.; Werner, Stephanie C. (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
  • Interior structure of the Moon: Constraints from seismic tomography, gravity and topography 
    Steinberger, Bernhard; Zhao, Dapeng; Werner, Stephanie C. (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2015)
    Seismic tomography can be combined with constraints from geoid, topography and other surface observations to gain information about mantle structure and dynamics. This approach has been taken with much success for the Earth ...
  • Jurassic fast polar shift rejected by a new high-quality paleomagnetic pole from southwest Greenland 
    Kulakov, Evgeniy; Torsvik, Trond Helge; Doubrovine, Pavel V.; Slagstad, Trond; Ganerød, Morgan; Silkoset, Petter; Werner, Stephanie C. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    A selective compilation of paleomagnetic data from North America indicates that a vast amount of rapid polar motion occurred in Late Jurassic time. The over 30° polar shift that accumulated during a relatively short time ...
  • Mineralogical and spectral (NIR) characterization of Fe-rich vermiculite-bearing terrestrial deposits and constraints for mineralogy of Oxia Planum, ExoMars 2022 landing site. 
    Krzesinska, Agata Magdalena; Bultel, Benjamin Gabriel Rene; Loizeau, Damien; Craw, David; April, Richard; Poulet, Francois; Werner, Stephanie C. (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2021)
    Oxia Planum is a Noachian plain on Mars. It was chosen as the final landing site for in situ studies by ExoMars 2022 rover. The main scientific objectives of the mission are to understand the mineralogy and aqueous evolution ...
  • Onset of Giant Planet Migration before 4480 Million Years Ago 
    Mojzsis, Stephen J; Brasser, Ramon; Kelly, Nigel M.; Abramov, Oleg; Werner, Stephanie C. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    Soon after their formation, the terrestrial planets experienced intense impact bombardment by comets, leftover planetesimals from primary accretion, and asteroids. This temporal interval in solar system evolution, termed ...
  • The Planetary Terrestrial Analogues Library (PTAL) – An exclusive lithological selection of possible martian earth analogues 
    Dypvik, Henning; Hellevang, Helge; Krzesinska, Agata Magdalena; Sætre, Christian; Viennet, Jean-Christophe; Bultel, Benjamin Gabriel Rene; Ray, Dwijesh; Poulet, Francois; Loizeau, Damien; Veneranda, Marco; Rull, Fernando; Cousin, Agnes; Werner, Stephanie C. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    The Planetary Terrestrial Analogues Library (PTAL) is a dedicated lithological collection that currently consists of 102 terrestrial rock samples selected to be possible Mars analogues. The ultimate goal is improving future ...
  • Planetary Terrestrial Analogues Library project: 1. characterization of samples by near-infrared point spectrometer 
    Lantz, Cateline; Poulet, Francois; Loizeau, Damien; Riu, Lucie; Pilorget, C.; Carter, John; Dypvik, Henning; Rull, Fernando; Werner, Stephanie C. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    The PTAL project aims at building and exploiting a database involving several analytical techniques, the Planetary Terrestrial Analogues Library, to help characterizing the mineralogical evolution of terrestrial bodies, ...
  • Planetary Terrestrial Analogues Library project: 2. building a laboratory facility for MicrOmega characterization 
    Loizeau, Damien; Lequertier, Guillaume; Poulet, Francois; Hamm, Vincent; Pilorget, Cédric; Meslier-Lourit, Lionel; Lantz, Cateline; Werner, Stephanie C.; Rull, Fernando; Bibring, Jean-Pierre (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Multiple spectroscopic techniques have been selected on previous, present and forthcoming missions to explore planetary surfaces in the Solar System. In particular, forthcoming ESA/Roscosmos and NASA missions to the surface ...
  • Sample-based Spectral Mapping around Landing Sites on the Moon—Lunar Timescale Part 1 
    Bultel, Benjamin Gabriel Rene; Werner, Stephanie C. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Abstract Studying the geology of a terrestrial body and its evolution requires being able to set up a chronology. Crater statistics is a powerful tool to do so. However, calibration of this method, which is derived ...
  • The self-secondary crater population of the Hokusai crater on Mercury 
    Xiao, Zhiyong; Prieur, Nils Charles; Werner, Stephanie C. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
    Whether or not self‐secondaries dominate small crater populations on continuous ejecta deposits and floors of fresh impact craters has long been a controversy. This issue potentially affects the age determination technique ...