Search Publications
Automated Multi-Dataset Analysis (AMDA): An on-line database and analysis tool for heliospheric and planetary plasma data
André, N.; Fedorov, A.; Budnik, E. +27 more
Accessing, visualizing and analyzing heterogeneous plasma datasets has always been a tedious task that hindered students and senior researchers as well. Offering user friendly and versatile tools to perform basic research tasks is therefore pivotal for data centres including the Centre de Données de la Physique des Plasmas (CDPP http://www.cdpp.eu…
Cross-comparison of global simulation models applied to Mercury's dayside magnetosphere
André, N.; Budnik, E.; Génot, V. +14 more
We present the first comparison of multiple global simulations of the solar wind interaction with Mercury's dayside magnetosphere, conducted in the framework of the international collaborative project SHOTS - Studies on Hermean magnetosphere Oriented Theories and Simulations. Two 3D magnetohydrodynamic and two 3D hybrid simulation codes are used t…
Dynamics of recent landslides (<20 My) on Mars: Insights from high-resolution topography on Earth and Mars and numerical modelling
Mangold, N.; Pajola, M.; Cremonese, G. +13 more
Landslides are common features found on steep slopes on Mars and the role of water in their formation is an open question. Our study focuses on three young martian landslides whose mechanism of formation is unknown and knowing their formation mechanism could give us key information on recent martian climate and/or tectonics. They are less than 5 k…
Topographic correction of HiRISE and CaSSIS images: Validation and application to color observations of Martian albedo features
Pajola, M.; Cremonese, G.; Thomas, N. +5 more
The topographic correction of satellite images has to be applied to both disentangle albedo features from illumination effects induced by local topography and perform spectrophotometric analyses of planetary surfaces. This work focuses on the modeling and removal of surface brightness variations induced by topography, referred as topographic shadi…
Ionospheric plasma energization at Mars during the September 2017 ICME event
Bhardwaj, Anil; Thampi, R. Satheesh; Thampi, Smitha V. +2 more
During September 2017, the solar active region (AR) 12673 produced several flares and Coronal Mass Ejections (CMEs). On 10 September 2017, a stronger and wider CME was erupted from AR 12673, which was Mars-directed (max. vsw = ~840 km s-1 near 1.5 au). This ICME caused a major space weather event at Mars on 12-13 September. W…
3DPD: A photogrammetric pipeline for a PUSH frame stereo cameras
Cremonese, G.; Thomas, N.; Pommerol, A. +5 more
An innovative photogrammetric pipeline has been developed by INAF-Padova for the processing of the stereo images from the CaSSIS (Colour and Stereo Imaging System) (Thomas et al., 2014). CaSSIS is the multispectral stereo push frame camera on board ExoMars TGO (Trace Gas Orbiter) which will image 1.5% of the Mars surface in stereo mode with a spat…
CaSSIS Color and multi-angular observations of martian slope streaks
Patel, M. R.; Pajola, M.; Cremonese, G. +12 more
Slope streaks are albedo features that form frequently on equatorial Martian slopes. Most slope streaks are dark relative to surrounding terrains, a minor fraction is bright, and there are rare transitioning streaks that exhibit a contrast reversal partway downslope. Their formation mechanisms and physical surface properties are not well understoo…
Phobos image enhancement using unpaired multi-frame acquisitions from Indian Mars Color Camera
Manthira Moorthi, S.; Misra, Indranil; Rout, Litu +3 more
The Mars Color Camera (MCC) of Indian Space Research Organisation (ISRO) captures the elusive moon of Mars, Phobos. MCC instrument is the eye of Mars Orbiter Mission (MOM) launched by ISRO on 05th November 2013 from the spaceport of India, Sriharikota. MCC has already provided more than 1000 images of Martian surface features covering d…
New constraints on the chemical composition and outgassing of 67P/Churyumov-Gerasimenko
Thomas, N.; Rubin, M.; Mousis, O. +4 more
Strong heterogeneities in the composition of the volatile species have been detected in the coma of comet 67P/Churyumov-Gerasimenko (67P/C-G) by the ROSINA instrument onboard the ESA's Rosetta spacecraft. However, it is not clear if these heterogeneities are indicative of heterogeneities in the near-surface nucleus composition or if the coma compo…
Pulkovo observations of apparent close approaches between near-earth asteroids and the Gaia stars in 2019-2020
Bikulova, D. A.
The astrometric observations of the apparent close approaches between near-Earth asteroids and the Gaia stars provide high quality data for studies on the dynamics of these objects. We present the technique of data analysis that allows us to decrease the distortion-dependent positional errors and observational results of eight of such events perfo…