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Solar observations with a millimeter-wavelength Array

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Abstract

Rapid developments in the techniques of interferometry at millimeter wavelengths now permit the use of telescope arrays similar to the Very Large Array at microwave wavelengths. These new arrays represent improvements of orders of magnitude in the spatial resolution and sensitivity of millimeter observations of the Sun, and will allow us to map the solar chromosphere at high spatial resolution and to study solar radio burst sources at millimeter wavelengths with high spatial and temporal resolution. Here we discuss the emission mechanisms at millimeter wavelengths and the phenomena which we expect will be the focus of such studies. We show that the flare observations study the most energetic electrons produced in solar flares, and can be used to constrain models for electron acceleration. We discuss the advantages and disadvantages of millimeter interferometry, and in particular focus on the use of and techniques for arrays of small numbers of telescopes.

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  1. Department of Astronomy, University of Maryland, 20742, College Park, MD, U.S.A

    S. M. White & M. R. Kundu

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  1. S. M. White
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White, S.M., Kundu, M.R. Solar observations with a millimeter-wavelength Array. Sol Phys 141, 347–369 (1992). https://doi.org/10.1007/BF00155185

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