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The dust-to-gas ratio, size distribution, and dust fall-back fraction of comet 67P/Churyumov-Gerasimenko: Inferences from linking the optical and dynamical properties of the inner comae.
Thomas, Nicolas; Marschall, Raphael; Wu, Jong-Shinn +3 more
In this work, we present results that simultaneously constrain the dust size distribution, dust-to-gas ratio, fraction of dust re-deposition, and total mass production rates for comet 67P/Churyumov-Gerasimenko. We use a 3D Direct Simulation Monte Carlo (DSMC) gas dynamics code to simulate the inner gas coma of the comet for the duration of the Ros…
AME: A Cross-scale Constellation of CubeSats to Explore Magnetic Reconnection in the Solar-Terrestrial Relation
Dunlop, Malcolm; Khotyaintsev, Yuri; Phan, Tai +25 more
A major subset of solar-terrestrial relations, responsible in particular for the driver of space weather phenomena, is the interaction between the Earth's magnetosphere and the solar wind. As one of the most important modes of the solar-wind-magnetosphere interaction, magnetic reconnection regulates the energy transport and energy release in the s…
The Capon method for Mercury's magnetic field analysis
Motschmann, Uwe; Toepfer, Simon; Narita, Yasuhito +1 more
Characterization of Mercury's internal and external magnetic field is one of the primary goals of the magnetometer experiment on board the BepiColombo MPO (Mercury Planetary Orbiter) spacecraft. A novel data analysis tool is developed to determine the Gauss coefficients in the multipole expansion using Capon's minimum variance projection method. T…