Search Publications
Radio Absorption in the Nightside Ionosphere of Mars During Solar Energetic Particle Events
Lester, M.; Leblanc, F.; Sánchez-Cano, B. +3 more
Characterization, understanding, and prediction of the Martian radio environment are of increasing importance to the forthcoming human exploration of Mars. Here we investigate 3-5 MHz radio absorption in the nightside ionosphere of Mars caused by enhanced ionization at <100 km altitudes during solar energetic particle (SEP) events. We conduct a…
Solar Energetic Particle Events Detected in the Housekeeping Data of the European Space Agency's Spacecraft Flotilla in the Solar System
Wimmer-Schweingruber, Robert F.; Wood, Simon; Wilson, Colin +37 more
Despite the growing importance of planetary Space Weather forecasting and radiation protection for science and robotic exploration and the need for accurate Space Weather monitoring and predictions, only a limited number of spacecraft have dedicated instrumentation for this purpose. However, every spacecraft (planetary or astronomical) has hundred…
CMEs and SEPs During November-December 2020: A Challenge for Real-Time Space Weather Forecasting
Maksimovic, Milan; Möstl, Christian; Galvin, Antoinette B. +20 more
Predictions of coronal mass ejections (CMEs) and solar energetic particles (SEPs) are a central issue in space weather forecasting. In recent years, interest in space weather predictions has expanded to include impacts at other planets beyond Earth as well as spacecraft scattered throughout the heliosphere. In this sense, the scope of space weathe…
CME Evolution in the Structured Heliosphere and Effects at Earth and Mars During Solar Minimum
Nitta, Nariaki V.; Holmström, Mats; Futaana, Yoshifumi +13 more
The activity of the Sun alternates between a solar minimum and a solar maximum, the former corresponding to a period of "quieter" status of the heliosphere. During solar minimum, it is in principle more straightforward to follow eruptive events and solar wind structures from their birth at the Sun throughout their interplanetary journey. In this p…
CME Magnetic Structure and IMF Preconditioning Affecting SEP Transport
Lowrance, Patrick J.; Möstl, Christian; Guo, Jingnan +15 more
Coronal mass ejections (CMEs) and solar energetic particles (SEPs) are two phenomena that can cause severe space weather effects throughout the heliosphere. The evolution of CMEs, especially in terms of their magnetic structure, and the configuration of the interplanetary magnetic field (IMF) that influences the transport of SEPs are currently are…
Modeling the Evolution and Propagation of 10 September 2017 CMEs and SEPs Arriving at Mars Constrained by Remote Sensing and In Situ Measurement
Dumbović, Mateja; Temmer, Manuela; Veronig, Astrid +13 more
On 10 September 2017, solar energetic particles originating from the active region 12673 produced a ground level enhancement at Earth. The ground level enhancement on the surface of Mars, 160 longitudinally east of Earth, observed by the Radiation Assessment Detector (RAD) was the largest since the landing of the Curiosity rover in August 2012. Ba…