Bonn 2020 – wissenschaftliches Programm

Die DPG-Frühjahrstagung in Bonn musste abgesagt werden! Lesen Sie mehr ...

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

EP: Fachverband Extraterrestrische Physik

EP 5: Sun and Heliosphere III

EP 5.5: Vortrag

Mittwoch, 1. April 2020, 15:30–15:45, H-HS VIII

Potential Insights about the Heliosphere from ENA Measurements with an Interstellar ProbeAndre Galli1, Peter Wurz1, •Horst Fichtner2, Yoshifumi Futaana3, and Stas Barabash31Physics Institute, University of Bern, Switzerland — 2Fakultät für Physik und Astronomie, Lehrstuhl IV, Ruhr-Universität Bochum, Germany — 3IRF Swedish Institue of Space Physicsm Kiruna, Sweden

Several concepts for heliospheric missions operating at heliocentric distances far beyond Earth orbit are currently investigated by the scientific community. The mission concept of an Interstellar Probe aims at reaching a heliocentric distance of 1000 au within this century. Such mission would not only allow for a direct sampling of the unperturbed interstellar medium, but also for visits to Kuiper Belt objects, a comprehensive view on the interplanetary dust populations, or infrared astronomy free from the foreground emission of the zodiacal cloud. Particularly, it would also allow to obtain a global view of the heliosphere from an outside vantage point by measuring energetic neutral atoms (ENAs) originating from various heliospheric plasma regions. In the presentation a simple empirical model of ENAs from the heliosphere will be discussed and basic requirements for an ENA instrumentation on board an Interstellar Probe. For this purpose the full energy range of heliospheric ENAs from 10 eV to 100 keV is considered because each part of the energy spectrum has its merits for heliospheric science. The sensitivity of corresponding ENA measurements to the global shape of the heliosphere is quantitatively analyzed.

100% | Mobil-Ansicht | English Version | Kontakt/Impressum/Datenschutz
DPG-Physik > DPG-Verhandlungen > 2020 > Bonn