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HeRO: A space-based low frequency interferometric observatory for heliophysics enabled by novel vector sensor technology

    M. KNAPP, D. E. GARY, M. H. HECHT, C. LONSDALE, F. D. LIND, F. C. ROBEY, L. FUHRMAN, B. CHEN, A. J. FENN, HeRO TEAM

Planetary Radio Emissions VIII, pp. 411-424, 2018/08/16

Proceedings of the 8th International Workshop on Planetary, Solar and Heliospheric Radio Emissions held at Seggauberg near Graz, Austria, October 25–27, 2016

doi: 10.1553/PRE8s411

doi: 10.1553/PRE8s411

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doi:10.1553/PRE8s411



doi:10.1553/PRE8s411

Abstract

HeRO (Heliophysics Radio Observer) is a hybrid ground and space mission concept for radio interferometry of solar radio bursts. The space segment (HeRO-S) covers low frequencies, 100 kHz–20 MHz, and is composed of 6 free–flying Cube- Sats equipped with vector sensors. The ground segment (HeRO-G), covers higher frequencies, 15 MHz–300 MHz. HeRO will explore conditions and disturbances in a key region of the heliosphere, from two to tens of solar radii, using interferometric observations of solar radio bursts over three decades in frequency. Spot mapping across the full frequency range will provide precise positions and basic structural information about type II and III radio bursts. The morphology of CME shock fronts will be traced via type II burst emissions, and heliospheric magnetic field geometries will be probed by measuring precise trajectories of type III bursts. Refraction in the heliospheric plasma on large and intermediate scales will be investigated throughout large volumes via the frequency dependence of accurate interferometric positional data on bursts. The HeRO data will be information rich with high resolution in time, frequency and spatial position, and high SNR, creating fertile ground for discovery of new phenomena.