activity
20102025
most citedExtremely high reflection of solar wind protons as neutral hydrogen atoms from regolith in space

160 citations · 680 across the 15 of their papers we have counts for

collaborators

15 papers

astro-ph.EP2025

BepiColombo at Mercury: Three flybys, three magnetospheres

Hayley N. Williamson, Stas Barabash, Hans Nilsson +14

We examine the first three BepiColombo Mercury flybys Using data from the Miniature Ion Precipitation Analyzer (MIPA), an ion mass analyzer in the Search for Exospheric Refilling a…

astro-ph.EP2022★ 5 cited

Galactic Cosmic Rays at Mars and Venus: Temporal Variations from Hours to Decades Measured as the Background Signal of Onboard Micro-Channel Plates

Yoshifumi Futaana, Manabu Shimoyama, Martin Wieser +8

A Micro-Channel Plate (MCP) is a widely used component for counting particles in space. Using the background counts of MCPs on Mars Express and Venus Express orbiters operated over…

astro-ph.EP2018★ 19 cited

The root of a comet tail - Rosetta ion observations at comet 67P/Churyumov--Gerasimenko

E. Behar, H. Nilsson, P. Henri +7

The first 1000 km of the ion tail of comet 67P/Churyumov-Gerasimenko were explored by the European Rosetta spacecraft, 2.7 au away from the Sun. We characterised the dynamics of bo…

physics.space-ph2017★ 52 cited

Measurements of the electrostatic potential of Rosetta at comet 67P

Elias Odelstad, Gabriella Stenberg-Wieser, Martin Wieser +3

We present and compare measurements of the spacecraft potential (Vs/c) of the Rosetta space- craft throughout its stay in the inner coma of comet 67P/Churyumov-Gerasimenko, by the…

astro-ph.EP2017★ 20 cited

On the in-situ detectability of Europa's water vapour plumes from a flyby mission

Hans L. F. Huybrighs, Yoshifumi Futaana, Stanislav Barabash +5

We investigate the feasibility of detecting water molecules (H2O) and water ions (H20+) from the Europa plumes from a flyby mission. A Monte Carlo particle tracing method is used t…

physics.space-ph2016★ 16 cited

Characteristics of proton velocity distribution functions in the near-lunar wake from Chandrayaan-1/SWIM observations

M B Dhanya, Anil Bhardwaj, Yoshifumi Futaana +5

Due to the high absorption of solar wind plasma on the lunar dayside, a large scale wake structure is formed downstream of the Moon. However, recent in-situ observations have revea…