On the unusual H(epsilon) emission in a sunspot umbra spectrum

Details On the unusual H(epsilon) emission in a sunspot umbra spectrum On the unusual H(epsilon) emission in a sunspot umbra spectrum

Mar 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994soph..150...71t&link_type=abstract

Solar Physics, vol. 150, no. 1-2, p. 71-79

Physics

3

Calcium, Dwarf Stars, Emission Spectra, H Lines, K Lines, Line Shape, Line Spectra, Solar Flares, Solar Oscillations, Spectrum Analysis, Sunspots, Umbras, Astronomical Photography, Chromosphere, Power Spectra, Spectrograms

Scientific paper

A study is made of characteristics of the oscillatory process in a sunspot where, in addition to the high brightness in the cores of the H and K Ca II lines, the H(epsilon) line was also in emission. A bright H(epsilon) emission persisted during six days at least. An analog of the behavior of the Ca II and H(epsilon) lines can be seen, presumably, on dwarf stars dKe and dMe.

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