6 Result(s)
within
Géraldine Zenhäusern
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Article
Open AccessAn estimate of the impact rate on Mars from statistics of very-high-frequency marsquakes
The number density of impact craters on a planetary surface is used to determine its age, which requires a model for the production rate of craters of different sizes. On Mars, however, estimates of the produc...
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Article
Open AccessConstraints on the martian crust away from the InSight landing site
The most distant marsquake recorded so far by the InSight seismometer occurred at an epicentral distance of 146.3 ± 6.9o, close to the western end of Valles Marineris. On the seismogram of this event, we have ide...
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Article
Tectonics of Cerberus Fossae unveiled by marsquakes
The InSight mission has measured the seismicity of Mars since February 2019 and has enabled the investigation of tectonics on the surface of another planet for the first time. Its dataset shows that most of th...
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Article
Newly formed craters on Mars located using seismic and acoustic wave data from InSight
Meteoroid impacts shape planetary surfaces by forming new craters and alter atmospheric composition. During atmospheric entry and impact on the ground, meteoroids excite transient acoustic and seismic waves. H...
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Article
Open AccessSeismic constraints from a Mars impact experiment using InSight and Perseverance
NASA’s InSight (Interior Exploration using Seismic Investigations, Geodesy and Heat Transport) mission has operated a sophisticated suite of seismology and geophysics instruments on the surface of Mars since i...
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Open AccessTowards probing Earth’s upper mantle with daily magnetic field variations: exploring a physics-based parametrization of the source
The electromagnetic (EM) field variations capable of probing the electrical conductivity of the upper mantle and mantle transition zone have a period range between a few hours and 1 day. At these periods, the ...
