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期刊论文
HEATING IN THE LOWER ATMOSPHERE AND THE CONTINUUM EMISSION OF SOLAR WHITE-LIGHT FLARES
THE ASTROPHYSICAL JOURNAL, 512:454-457, 1999 February 10,-0001,():
Observationally, there is a small fraction of solar white-light flares (WLFs), the so-called type II WLFs, showing an increased visible continuum but no significant Balmer jump and less strong chromospheric line emission in comparison with type I WLFs. The classical point of view, that the flare energy is initially released in the corona and then transported downward, can hardly explain WLFs of this kind. In this paper we explore the possibility that type II WLFs originate from a deeper layer. Assuming an in situ energy release, in particular in the form of high-energy particles, in a region around the temperature minimum, the continuum emission is computed in diferent time stages during the
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