Search Publications
Galactic cosmic rays at 0.7 A.U. with Venus Express housekeeping data
Wood, Simon; Witasse, Olivier; Sánchez-Cano, Beatriz +5 more
We apply a previously developed procedure to characterize galactic cosmic rays (GCRs) at 0.7 A.U. with engineering data coming from the Venus Express mission. The engineering parameters are the Error Detection and Correction EDAC cumulative counters, used for detection and correction of memory errors induced by highly energetic particles. It has a…
Addendum to "Description, accessibility and usage of SOIR/Venus Express atmospheric profiles of Venus distributed in VESPA (Virtual European Solar and Planetary Access)"
Vandaele, A. C.; Thomas, I. R.; Trompet, L. +9 more
The reference paper describing the SOIR data service available through the VESPA portal is Trompet et al. (2018). This data service contains an updated version of the profiles already available previously for AERO (aerosols), CO2, CO, H35Cl, H37Cl, HF, SO2, H2O, and HDO following Mahieux et al…
Cloud chemistry on Venus: Sulfuric acid reactions and supercooling in Venus liquid cloud droplets
Baines, K. H.; Delitsky, M. L.
Cloud particles on Venus consist of liquid droplets of aqueous sulfuric acid solutions (H2SO4/H2O) that are the site of chemical reactions arising from uptake (absorption) of surrounding gas molecules into the droplets and subsequent solution chemistry. The Henry's Law constant, H*, for HCl in sulfuric acid in wate…
LatHyS global hybrid simulation of the BepiColombo second Venus flyby
André, N.; Fedorov, A.; Sauvaud, J. -A. +23 more
Plasma and magnetic field observations by BepiColombo during its 2nd Venus flyby in August 10, 2021 have been examined and compared with the newly developed global hybrid simulation LatHyS for the Venusian environment. The LatHyS-Venus simulation was first validated by a comparison with Venus Express observations obtained during average solar wind…
Survey of 1-Hz waves in the near-Venusian space: Venus Express observations
Zhang, T. L.; Chen, Y. Q.; Wang, G. Q. +2 more
With 32 Hz magnetic field data of Venus Express from May 2006 to August 2012, the global spatial distributions of 1-Hz waves in the near-Venusian space are presented in this paper. The occurrence rate of 1-Hz waves is maximized near the Venusian bow shock and decreases in the upstream with the distance away from the shock. Downstream of Venusian b…
Improved calibrations of the stellar occultation data accumulated by the SPICAV UV onboard Venus Express
Montmessin, Franck; Bertaux, Jean-Loup; Korablev, Oleg +2 more
Stellar occultation is a powerful method to study vertical structure of the Venus night mesosphere. The UV channel of SPICAV spectrometer, operated in 2006-2014 on board ESA's Venus Express orbiter, allowed retrieval profiles of atmospheric gases (CO2, SO2, and O3) and aerosols. It was also able to register differe…
The correlation length of ULF waves around Venus: VEX observations
Fränz, M.; Zhang, T. L.; Bolzan, M. J. A. +2 more
A study of the correlation length of ultra-low frequency (ULF) waves around Venus was developed using electron density and magnetic field data obtained from the Analyzer of Space Plasmas and Energetic Atoms (ASPERA-4) and magnetometer (MAG), respectively, on board of the mission Venus Express (VEX). The analysis was conducted using the whole inter…
Simple model of the wave pattern in the atmosphere of a slow rotating planet due to surface irregularities
Vigh, Carlos; Cirilo-Lombardo, Diego; Mayochi, Mariano +1 more
Recent observations show a persistent pattern on Venus surface, interpreted as a stationary wave due to the interaction of the prevailing winds with the orography of the planet. In this work we use an idealized model of the phenomenon that allows for a fully analytical solution applied to a slow rotating planet with idealized obstacles. We use Ven…
The upper atmosphere of Venus: Model predictions for mass spectrometry measurements
Wurz, P.; Galli, A.; Vorburger, A. +1 more
Venus is the closest and most similar planet to Earth in the whole solar system, yet, basic measurements are missing. The atmospheric composition has been studied to some extent with the Pioneer Venus Orbiter mission and the more recent Venus Express, however, the concentration of many species and their isotopic ratios are not yet known with satis…
ESA's Planetary Science Archive: Preserve and present reliable scientific data sets
De Marchi, G.; Besse, S.; Vallat, C. +15 more
The European Space Agency (ESA) Planetary Science Archive (PSA) is undergoing a significant refactoring of all its components to improve the services provided to the scientific community and the public. The PSA supports ESA's missions exploring the Solar System by archiving scientific peer-reviewed observations as well as engineering data sets. Th…