Global maps of the magnetic field in the solar corona
Science, ISSN: 1095-9203, Vol: 369, Issue: 6504, Page: 694-697
2020
- 112Citations
- 46Captures
- 8Mentions
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Metrics Details
- Citations112
- Citation Indexes112
- 112
- CrossRef85
- Captures46
- Readers46
- 46
- Mentions8
- News Mentions6
- 6
- Blog Mentions2
- 2
Most Recent Blog
From Science News: "Check out the first-ever map of the solar corona’s magnetic field"
From Science News August 21, 2020 Lisa Grossman Future telescopes could make similar maps to predict solar eruptions. The colored fringes of this image show
Most Recent News
Global magnetic field of the solar corona measured for the first time
An international team led by Professor Tian Hui from Peking University has recently measured the global magnetic field of the solar corona for the first time. The team used observations from the Coronal Multi-channel Polarimeter, an instrument designed by Dr. Steve Tomczyk at the National Center for Atmospheric Research, USA. Their results have been recently published in Science and Science China
Article Description
Understanding many physical processes in the solar atmosphere requires determination of the magnetic field in each atmospheric layer. However, direct measurements of the magnetic field in the Sun's corona are difficult to obtain. Using observations with the Coronal Multi-channel Polarimeter, we have determined the spatial distribution of the plasma density in the corona and the phase speed of the prevailing transverse magnetohydrodynamic waves within the plasma. We combined these measurements to map the plane-of-sky component of the global coronal magnetic field. The derived field strengths in the corona, from 1.05 to 1.35 solar radii, are mostly 1 to 4 gauss. Our results demonstrate the capability of imaging spectroscopy in coronal magnetic field diagnostics.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85089301272&origin=inward; http://dx.doi.org/10.1126/science.abb4462; http://www.ncbi.nlm.nih.gov/pubmed/32764071; https://www.science.org/doi/10.1126/science.abb4462; https://dx.doi.org/10.1126/science.abb4462; https://science.sciencemag.org/content/369/6504/694
American Association for the Advancement of Science (AAAS)
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