High resolution spectroscopy of solar activity |
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Authors: | L. E. Cram R. D. Robinson H. A. Mauter G. R. Mann G. L. Phillis |
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Affiliation: | (1) Sacramento Peak Observatory, 88349 Sunspot, NM, U.S.A. |
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Abstract: | We describe an observing program designed to obtain high spatial resolution photographic spectra of solar active region phenomena, with time resolution as short as 6 s. The Vacuum Tower Telescope and Echelle Spectrograph at Sacramento Peak Observatory are used to make observations simultaneously in H, He D3, Ca ii K, Mg b1, the CN bandhead at 3883, and the magnetically-sensitive line Fe i 6302. Images reflected from the slit jaw are exposed simultaneously in white-light and H. Observations of chromospheric heating, following a high-velocity infall along an H superpenumbral filament, are presented to illustrate the capabilities of the program.Operated by the Association of Universities for Research in Astronomy, Inc., under contract AST 78-17292 with the National Science Foundation. |
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