Auflistung nach Schlagwort "Mars"
Anzeige der Dokumente 1-20 von 25
-
An ambitious new mission seeks the origin of the moons of Mars
(Proceedings of the National Academy of Sciences, 2023)Two mysterious moons whirl around Mars. Despite the many missions to the planet, not a single one has focused on its satellites — or, rather, not a single successful one. Three previous Martian moon explorers, launched by ... -
Bursty Ion Escape Fluxes at Mars
; ; ; Tellmann, S.; Woch, J.; McFadden, J.; (Journal of Geophysical Research: Space Physics, 2021-04-28)
Based on the Mars Atmosphere and Volatile Evolution measurements we have observed cases when the fluxes of oxygen ions escaping the Martian ionosphere exceed their median values by more than a factor of 100. In the Martian ... -
Calibration of the Heat Flow and Physical Properties Package (HP 3) for the InSight Mars Mission
; ; Knollenberg, J.; Krause, C.; Scharringhausen, M.; Wippermann, T.; ; ; Banerdt, W.B. (Earth and Space Science, 2019)
The (HP 3) of the InSight Mars mission is an instrument package to measure the Martian geothermal heat flow. The instrument's platinum resistance temperature sensors have been calibrated between −75 and +55 °C, and ... -
DeepLandforms: A Deep Learning Computer Vision Toolset Applied to a Prime Use Case for Mapping Planetary Skylights
; ; ; (Earth and Space Science, 2023-01-04)
Thematic map creation is a meticulous process that requires several steps to be accomplished regardless of the type of map to be produced, from data collection, through data exploitation and map publication in print, image, ... -
Detection of Copper by the ChemCam Instrument Along Curiosity's Traverse in Gale Crater, Mars: Elevated Abundances in Glen Torridon
; ; ; ; ; ; ; ; ; ; (Journal of Geophysical Research: Planets, 2023-03-07)
Laser‐induced breakdown spectroscopy, as utilized by the ChemCam instrument onboard the Curiosity rover, detected enhanced abundances of the element copper. Since landing in Gale crater (6 August 2012), 10 enhancements in ... -
Detection, Analysis, and Removal of Glitches From InSight's Seismic Data From Mars
Scholz, John‐Robert; Widmer‐Schnidrig, Rudolf; Davis, Paul;; Pinot, Baptiste; ; ; ; ; ; de Raucourt, Sébastien; ; ; Orhand‐Mainsant, Guénolé; ; Cuvier, Arthur; ; ; ; Sainton, Grégory; ; ; ; Böse, Maren; ; Clinton, John; van Driel, Martin; Kawamura, Taichi; ; ; ; ; ; Pike, William T.; ; (Earth and Space Science, 2020-10-30)
The instrument package SEIS (Seismic Experiment for Internal Structure) with the three very broadband and three short‐period seismic sensors is installed on the surface on Mars as part of NASA's InSight Discovery mission. ... -
Determination of Spatial Scale in Martian Landscape Images Acquired by the Curiosity Rover, and Viewing Image Scale and Target Chemistry Using the ASIC Website
; ; ; ; (Earth and Space Science, 2023-05-11)
Abstract In this paper we describe a method to compute spatial scales for images acquired by ...
-
Expansion and Shrinking of the Martian Topside Ionosphere
; ; ; Woch, J.; McFadden, J.; ; ; ; ; ; (Journal of Geophysical Research: Space Physics, 2019)
The observations made by the Mars Atmosphere and Volatile EvolutioN spacecraft in the topside (≥200 km) ionosphere of Mars show that this region is very responsive to the variations of the external (solar extreme ultraviolet ... -
Geologic History of Deuteronilus Cavus in the Ismenius Lacus Region, Mars
; ; ; (Journal of Geophysical Research: Planets, 2024-01-29)
Abstract The Ismenius Lacus region of Mars has a diverse geological history, and we present the ...
-
Geological History of Southeastern Gorgonum Chaos, Mars: A Story of Water and Wind
; ; (Journal of Geophysical Research: Planets, 2021-09-10)
Gorgonum Chaos is part of the Eridania paleolake in Terra Sirenum and displays a number of prominent light‐toned morphological features that bear a record of the regional climatic conditions throughout most of Martian ... -
Impact of Martian Crustal Magnetic Field on the Ion Escape
; ; ; Woch, J.; McFadden, J.; ; ; ; (Journal of Geophysical Research: Space Physics, 2020)
Based on the Mars Atmosphere and Volatile EvolutioN (MAVEN) observations, we have analyzed the role of the crustal magnetic field on ion loss driven by the direct interaction of the solar wind with the Mars ionosphere. ... -
Induced Magnetic Fields and Plasma Motions in the Inner Part of the Martian Magnetosphere
; ; ; ; ; ; ; ; ; ; ; ; (Journal of Geophysical Research: Space Physics, 2021-12-27)
Analysis of Mars Atmosphere and Volatile Evolution (MAVEN)/Supra‐Thermal And Thermal Ion Composition observations in the Martian upper atmosphere, bounded at higher altitudes by the shocked solar wind, shows that the draping ... -
Morphometric Characterization of Longitudinal Striae on Martian Landslides and Impact Ejecta Blankets and Implications for the Formation Mechanism
Pietrek, Alexa;; (Journal of Geophysical Research: Planets, 2020)
Longitudinal striae are a shared characteristic of long run-out landslides and layered ejecta crater deposits. They appear to be a fundamental feature of disintegrated mass flows, but their formation and the required ... -
Rheological and Mechanical Layering of the Crust Underneath Thumbprint Terrains in Arcadia Planitia, Mars
; ; ; (Journal of Geophysical Research: Planets, 2021-11-10)
In the area of Arcadia Planitia in the Northern hemisphere of Mars, mounds indicating fluid and sediment emissions have been already recognized. Here, we show that through fractal and fracture‐spacing analyses of a large ... -
Seismic Velocity Variations in a 3D Martian Mantle: Implications for the InSight Measurements
; ; ; ; ; ; ; ; ; ; ; ; ; (Journal of Geophysical Research: Planets, 2021-06-17)
We use a large data set of 3D thermal evolution models to predict the distribution of present‐day seismic velocities in the Martian interior. Our models show a difference between maximum and minimum S wave velocity of up ... -
Spatio‐Temporal Level Variations of the Martian Seasonal North Polar Cap From Co‐Registration of MOLA Profiles
; ; ; ; ; ; ; ; (Journal of Geophysical Research: Planets, 2022-10-14)
The seasonal deposition and sublimation of CO2 constitute a major element in Martian volatile cycles. We reprocess the Mars Orbiter Laser Altimeter (MOLA) data and apply co‐registration procedures to obtain spatio‐temporal ... -
Spatio‐Temporal Level Variations of the Martian Seasonal South Polar Cap From Co‐Registration of MOLA Profiles
; ; ; ; ; ; (Journal of Geophysical Research: Planets, 2022-07-18)
The seasonal deposition and sublimation of CO2 represents a major element in the Martian volatile cycle. Here, co‐registration strategies are applied to Mars Orbiter Laser Altimeter profiles to obtain spatio‐temporal ... -
Tectono‐Magmatic, Sedimentary, and Hydrothermal History of Arsinoes and Pyrrhae Chaos, Mars
; ; ; (Journal of Geophysical Research: Planets, 2020-12-23)
Arsinoes and Pyrrhae Chaos are two adjacent chaotic terrains located east of Valles Marineris and west of Arabia Terra, on Mars. In this work, we produced a morpho‐stratigraphic map of the area, characterized by a volcanic ... -
The Global Seismic Moment Rate of Mars After Event S1222a
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; (Geophysical Research Letters, 2023-04-06)
The seismic activity of a planet can be described by the corner magnitude, events larger than which are extremely unlikely, and the seismic moment rate, the long‐term average of annual seismic moment release. Marsquake ... -
The Mini Induced Magnetospheres at Mars
; ; ; ; ; (Geophysical Research Letters, 2023-02-08)
We report on observations made by the Mars Atmosphere and Volatile EvolutioN spacecraft at Mars, in the region of the ion plume. We observe that in some cases, when the number density of oxygen ions is comparable to the ...
