期刊
FRONTIERS IN ASTRONOMY AND SPACE SCIENCES
卷 8, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fspas.2021.665885
关键词
turbulence; space plasma; solar wind; interplanetary magnetic field; magnetometer; nanosatellite; CubeSat
资金
- NSF [1931435, ATM-0739864, ATM-1420184]
- European Space Agency's Networking/Partnership Initiative (NPI) programme
- ICETEX
- NASA [80NSSC19K0491, 80GSFC18C0008, 80NSSC18K1293, 80NSSC20K1842, NNG04EB99C]
- NASA HSR grant [80NSSC18K1648]
- European Union [776262]
- STFC Ernest Rutherford Fellowship [ST/P003826/1]
- STFC Consolidated Grant [ST/V006320/1]
- Direct For Computer & Info Scie & Enginr
- Office of Advanced Cyberinfrastructure (OAC) [1931435] Funding Source: National Science Foundation
- STFC [ST/V006320/1] Funding Source: UKRI
Current spacecraft can measure particles and fields of the solar wind, but cannot fully determine its 3-D structure. The concept of the Magnetic Topology Reconstruction Explorer (MagneToRE) proposes a large constellation of in-situ spacecraft to reconstruct 3-D maps of the solar wind's dynamic magnetic structure for the first time.
Unlike the vast majority of astrophysical plasmas, the solar wind is accessible to spacecraft, which for decades have carried in-situ instruments for directly measuring its particles and fields. Though such measurements provide precise and detailed information, a single spacecraft on its own cannot disentangle spatial and temporal fluctuations. Even a modest constellation of in-situ spacecraft, though capable of characterizing fluctuations at one or more scales, cannot fully determine the plasma's 3-D structure. We describe here a concept for a new mission, the Magnetic Topology Reconstruction Explorer (MagneToRE), that would comprise a large constellation of in-situ spacecraft and would, for the first time, enable 3-D maps to be reconstructed of the solar wind's dynamic magnetic structure. Each of these nanosatellites would be based on the CubeSat form-factor and carry a compact fluxgate magnetometer. A larger spacecraft would deploy these smaller ones and also serve as their telemetry link to the ground and as a host for ancillary scientific instruments. Such an ambitious mission would be feasible under typical funding constraints thanks to advances in the miniaturization of spacecraft and instruments and breakthroughs in data science and machine learning.
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